| File name: | YandexPackLoader (2).exe |
| Full analysis: | https://app.any.run/tasks/0a86e4da-192e-45e3-aa4a-828ce520554f |
| Verdict: | Malicious activity |
| Threats: | A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection. |
| Analysis date: | October 23, 2019, 02:59:16 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | 463803479206F1AB7652E2438044F4BA |
| SHA1: | 725AB923A67005A8AB7B0FFBF82CF7194B1CE2DE |
| SHA256: | 230C075AC0D01E3BF01368E8A23C4E4DF711ACBDD2282F7D601E45E482ECC5B1 |
| SSDEEP: | 3072:+x3P/sUhfv9/d7HvEQC2mCE0KMlbq3dVCZbnKvg8t8xtbXe0GjuKnkNrin2j53:S3P/Fv9/d7PzqdCbnKxjUIn2j53 |
MALICIOUS
Application was dropped or rewritten from another process
- YandexPackSetup.exe (PID: 4064)
- sender.exe (PID: 976)
- seederexe.exe (PID: 2952)
- Yandex.exe (PID: 3116)
- lite_installer.exe (PID: 4088)
Downloads executable files from the Internet
- YandexPackLoader (2).exe (PID: 2768)
SUSPICIOUS
Application launched itself
- YandexPackLoader (2).exe (PID: 2768)
Executable content was dropped or overwritten
- YandexPackLoader (2).exe (PID: 2768)
- MsiExec.exe (PID: 2480)
- msiexec.exe (PID: 284)
- Yandex.exe (PID: 3116)
Creates files in the user directory
- MsiExec.exe (PID: 2480)
- seederexe.exe (PID: 2952)
- Yandex.exe (PID: 3116)
Reads Environment values
- MsiExec.exe (PID: 2480)
Changes the started page of IE
- seederexe.exe (PID: 2952)
Creates a software uninstall entry
- Yandex.exe (PID: 3116)
INFO
Application launched itself
- msiexec.exe (PID: 284)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win64 Executable (generic) (64.6) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (15.4) |
| .exe | | | Win32 Executable (generic) (10.5) |
| .exe | | | Generic Win/DOS Executable (4.6) |
| .exe | | | DOS Executable Generic (4.6) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2018:12:11 07:24:12+01:00 |
| PEType: | PE32 |
| LinkerVersion: | 14 |
| CodeSize: | 151040 |
| InitializedDataSize: | 88576 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x8eb2 |
| OSVersion: | 5.1 |
| ImageVersion: | - |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 0.1.0.32 |
| ProductVersionNumber: | 0.1.0.32 |
| FileFlagsMask: | 0x0017 |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Russian |
| CharacterSet: | Unicode |
| FileDescription: | Setup Downloader |
| FileVersion: | 0.1.0.32 |
| InternalName: | download |
| LegalCopyright: | Copyright (C) 2015 Yandex LLC |
| OriginalFileName: | WebDownloader.exe |
| ProductName: | Setup Downloader |
| ProductVersion: | 0.1.0.32 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 11-Dec-2018 06:24:12 |
| Detected languages: |
|
| Debug artifacts: |
|
| FileDescription: | Setup Downloader |
| FileVersion: | 0.1.0.32 |
| InternalName: | download |
| LegalCopyright: | Copyright (C) 2015 Yandex LLC |
| OriginalFilename: | WebDownloader.exe |
| ProductName: | Setup Downloader |
| ProductVersion: | 0.1.0.32 |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0090 |
| Pages in file: | 0x0003 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x0000 |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x0000 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000108 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 6 |
| Time date stamp: | 11-Dec-2018 06:24:12 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00001000 | 0x00024D1C | 0x00024E00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.63719 |
.rdata | 0x00026000 | 0x00009BD4 | 0x00009C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.96753 |
.data | 0x00030000 | 0x0000360C | 0x00000C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 2.64313 |
.gfids | 0x00034000 | 0x00000134 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 2.42235 |
.rsrc | 0x00035000 | 0x000067E8 | 0x00006800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.1595 |
.reloc | 0x0003C000 | 0x00001A18 | 0x00001C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 6.41306 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.31879 | 1235 | UNKNOWN | English - United States | RT_MANIFEST |
2 | 1.53973 | 9832 | UNKNOWN | Russian - Russia | RT_ICON |
3 | 1.54324 | 4392 | UNKNOWN | Russian - Russia | RT_ICON |
4 | 1.70751 | 2488 | UNKNOWN | Russian - Russia | RT_ICON |
5 | 1.78405 | 1128 | UNKNOWN | Russian - Russia | RT_ICON |
107 | 2.81633 | 76 | UNKNOWN | Russian - Russia | RT_GROUP_ICON |
Imports
ADVAPI32.dll |
KERNEL32.dll |
OLEAUT32.dll |
SHELL32.dll |
Secur32.dll |
USER32.dll |
VERSION.dll |
WINTRUST.dll |
WS2_32.dll |
WTSAPI32.dll |
Total processes
42
Monitored processes
9
Malicious processes
3
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 284 | C:\Windows\system32\msiexec.exe /V | C:\Windows\system32\msiexec.exe | services.exe | ||||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows® installer Exit code: 0 Version: 5.0.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 976 | C:\Users\admin\AppData\Local\Temp\9AFEE31A-CA67-4B5A-A3FF-4358A07021A7\sender.exe --send "/status.xml?clid=2349340-0&uuid=b2b83c9a-94f6-4ef2-81cf-0882389ac61b&vnt=Windows 7x32&file-no=6%0A10%0A11%0A12%0A13%0A15%0A16%0A17%0A18%0A20%0A21%0A22%0A25%0A38%0A40%0A42%0A43%0A45%0A58%0A59%0A89%0A102%0A103%0A106%0A108%0A111%0A121%0A123%0A124%0A125%0A129%0A" | C:\Users\admin\AppData\Local\Temp\9AFEE31A-CA67-4B5A-A3FF-4358A07021A7\sender.exe | seederexe.exe | ||||||||||||
User: admin Company: Yandex Integrity Level: MEDIUM Description: Yandex Statistics Exit code: 0 Version: 0.0.2.14 Modules
| |||||||||||||||
| 2256 | "C:\Users\admin\AppData\Local\Temp\YandexPackLoader (2).exe" --stat dwnldr/p=11000/cnt=0/dt=5/ct=1/rt=0 --dh 332 --st 1571799580 | C:\Users\admin\AppData\Local\Temp\YandexPackLoader (2).exe | YandexPackLoader (2).exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Setup Downloader Exit code: 0 Version: 0.1.0.32 Modules
| |||||||||||||||
| 2480 | C:\Windows\system32\MsiExec.exe -Embedding A7F1D7F446890E99D0A381FC27C1511E | C:\Windows\system32\MsiExec.exe | msiexec.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows® installer Exit code: 0 Version: 5.0.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2768 | "C:\Users\admin\AppData\Local\Temp\YandexPackLoader (2).exe" | C:\Users\admin\AppData\Local\Temp\YandexPackLoader (2).exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Setup Downloader Exit code: 0 Version: 0.1.0.32 Modules
| |||||||||||||||
| 2952 | "C:\Users\admin\AppData\Local\Temp\B353E18F-9DEF-420C-B4F5-5B2FE6425192\seederexe.exe" "--yqs=y" "--yhp=y" "--ilight=" "--oem=" "--nopin=n" "--pin_custom=n" "--pin_desktop=n" "--pin_taskbar=y" "--locale=us" "--browser=y" "--browser_default=" "--yabm=" "--loglevel=trace" "--ess=" "--clids=C:\Users\admin\AppData\Local\Temp\clids-yasearch.xml" "--sender=C:\Users\admin\AppData\Local\Temp\9AFEE31A-CA67-4B5A-A3FF-4358A07021A7\sender.exe" "--is_elevated=no" "--ui_level=3" "--good_token=x" | C:\Users\admin\AppData\Local\Temp\B353E18F-9DEF-420C-B4F5-5B2FE6425192\seederexe.exe | MsiExec.exe | ||||||||||||
User: admin Company: Yandex Integrity Level: MEDIUM Description: Browser Integration Module Exit code: 0 Version: 3.7.0.117 Modules
| |||||||||||||||
| 3116 | C:\Users\admin\AppData\Local\Yandex\YaPin\Yandex.exe --silent --pin-taskbar=y --pin-desktop=n | C:\Users\admin\AppData\Local\Yandex\YaPin\Yandex.exe | seederexe.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: YandexPin Exit code: 1 Version: 2.2.0.53 Modules
| |||||||||||||||
| 4064 | "C:\Users\admin\AppData\Local\Temp\7F4987FB1A6E43d69E3E94B29EB75926\YandexPackSetup.exe" /passive /msicl "VID=0 YABROWSER=y YAHOMEPAGE=y YAQSEARCH=y " | C:\Users\admin\AppData\Local\Temp\7F4987FB1A6E43d69E3E94B29EB75926\YandexPackSetup.exe | YandexPackLoader (2).exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Software Installer Exit code: 0 Version: 3.0.5419.0 Modules
| |||||||||||||||
| 4088 | "C:\Users\admin\AppData\Local\Temp\5DC20B6F-3EC5-42CA-AB83-3028CFFD048E\lite_installer.exe" --use-user-default-locale --silent --remote-url=http://downloader.yandex.net/downloadable_soft/browser/pseudoportal-ru/Yandex.exe --cumtom-welcome-page=https://browser.yandex.ru/promo/welcome_com/5/ --YABROWSER | C:\Users\admin\AppData\Local\Temp\5DC20B6F-3EC5-42CA-AB83-3028CFFD048E\lite_installer.exe | MsiExec.exe | ||||||||||||
User: admin Company: Yandex Integrity Level: MEDIUM Description: YandexBrowserDownloader Exit code: 0 Version: 1.0.1.88 Modules
| |||||||||||||||
Total events
1 869
Read events
1 466
Write events
384
Delete events
19
Modification events
| (PID) Process: | (2768) YandexPackLoader (2).exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\YandexPackLoader (2)_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (2768) YandexPackLoader (2).exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\YandexPackLoader (2)_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (2768) YandexPackLoader (2).exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\YandexPackLoader (2)_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (2768) YandexPackLoader (2).exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\YandexPackLoader (2)_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (2768) YandexPackLoader (2).exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\YandexPackLoader (2)_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (2768) YandexPackLoader (2).exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\YandexPackLoader (2)_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (2768) YandexPackLoader (2).exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\YandexPackLoader (2)_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (2768) YandexPackLoader (2).exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\YandexPackLoader (2)_RASMANCS |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (2768) YandexPackLoader (2).exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\YandexPackLoader (2)_RASMANCS |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (2768) YandexPackLoader (2).exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\YandexPackLoader (2)_RASMANCS |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
Executable files
8
Suspicious files
6
Text files
109
Unknown types
11
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 4064 | YandexPackSetup.exe | C:\Users\admin\AppData\Local\Temp\{5B964E0E-B9A3-4276-9ED9-4D5A5720747A}\YandexSearch.msi | — | |
MD5:— | SHA256:— | |||
| 284 | msiexec.exe | C:\Windows\Installer\39c761.msi | — | |
MD5:— | SHA256:— | |||
| 284 | msiexec.exe | C:\Windows\Installer\MSIC8E8.tmp | — | |
MD5:— | SHA256:— | |||
| 284 | msiexec.exe | C:\Windows\Installer\MSIC995.tmp | — | |
MD5:— | SHA256:— | |||
| 2480 | MsiExec.exe | C:\Users\admin\AppData\Local\Temp\vendor00000.xml | — | |
MD5:— | SHA256:— | |||
| 284 | msiexec.exe | C:\Windows\Installer\MSIC9D4.tmp | — | |
MD5:— | SHA256:— | |||
| 284 | msiexec.exe | C:\Users\admin\AppData\Local\Temp\~DFE3625418ABA3C988.TMP | — | |
MD5:— | SHA256:— | |||
| 284 | msiexec.exe | C:\Windows\Installer\MSICA92.tmp | — | |
MD5:— | SHA256:— | |||
| 284 | msiexec.exe | C:\Windows\Installer\MSICAD1.tmp | — | |
MD5:— | SHA256:— | |||
| 284 | msiexec.exe | C:\Windows\Installer\MSICB20.tmp | — | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
7
TCP/UDP connections
9
DNS requests
6
Threats
4
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
4088 | lite_installer.exe | GET | 302 | 5.45.205.243:80 | http://downloader.yandex.net/downloadable_soft/browser/pseudoportal-ru/Yandex.exe?clid=2349319&ui={b2b83c9a-94f6-4ef2-81cf-0882389ac61b} | RU | — | — | whitelisted |
2256 | YandexPackLoader (2).exe | GET | — | 77.88.21.14:80 | http://clck.yandex.ru/click/dtype=stred/pid=12/cid=72435/path=dwnldr/p=11000/cnt=0/dt=5/ct=1/rt=2/imp=0/* | RU | — | — | whitelisted |
4088 | lite_installer.exe | GET | — | 5.45.247.9:80 | http://cache-ams01.cdn.yandex.net/downloader.yandex.net/downloadable_soft/browser/pseudoportal-ru/Yandex.exe?clid=2349319&ui={b2b83c9a-94f6-4ef2-81cf-0882389ac61b} | RU | — | — | whitelisted |
2768 | YandexPackLoader (2).exe | GET | 302 | 5.45.205.243:80 | http://downloader.yandex.net/yandex-pack/11000/YandexPackSetup.exe | RU | — | — | whitelisted |
2768 | YandexPackLoader (2).exe | GET | 200 | 5.45.247.9:80 | http://cache-ams01.cdn.yandex.net/downloader.yandex.net/yandex-pack/11000/YandexPackSetup.exe | RU | executable | 9.26 Mb | whitelisted |
2768 | YandexPackLoader (2).exe | GET | 302 | 5.45.205.243:80 | http://downloader.yandex.net/yandex-pack/downloader/info.rss | RU | — | — | whitelisted |
2768 | YandexPackLoader (2).exe | GET | 200 | 5.45.247.10:80 | http://cache-ams02.cdn.yandex.net/downloader.yandex.net/yandex-pack/downloader/info.rss | RU | xml | 544 b | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2768 | YandexPackLoader (2).exe | 5.45.205.243:80 | downloader.yandex.net | YANDEX LLC | RU | whitelisted |
2768 | YandexPackLoader (2).exe | 5.45.247.10:80 | cache-ams02.cdn.yandex.net | YANDEX LLC | RU | whitelisted |
2768 | YandexPackLoader (2).exe | 5.45.247.9:80 | cache-ams01.cdn.yandex.net | YANDEX LLC | RU | whitelisted |
4088 | lite_installer.exe | 213.180.204.14:80 | clck.yandex.ru | YANDEX LLC | RU | whitelisted |
2256 | YandexPackLoader (2).exe | 77.88.21.14:80 | clck.yandex.ru | YANDEX LLC | RU | whitelisted |
2952 | seederexe.exe | 213.180.204.14:80 | clck.yandex.ru | YANDEX LLC | RU | whitelisted |
976 | sender.exe | 87.250.250.33:80 | soft.export.yandex.ru | YANDEX LLC | RU | whitelisted |
4088 | lite_installer.exe | 5.45.205.243:80 | downloader.yandex.net | YANDEX LLC | RU | whitelisted |
— | — | 5.45.247.9:80 | cache-ams01.cdn.yandex.net | YANDEX LLC | RU | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
downloader.yandex.net |
| whitelisted |
cache-ams02.cdn.yandex.net |
| whitelisted |
cache-ams01.cdn.yandex.net |
| whitelisted |
clck.yandex.ru |
| whitelisted |
soft.export.yandex.ru |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |
— | — | Attempted Information Leak | ET POLICY curl User-Agent Outbound |
— | — | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |
— | — | Misc activity | ET INFO EXE - Served Attached HTTP |
Process | Message |
|---|---|
YandexPackSetup.exe | IsAlreadyRun() In
|
YandexPackSetup.exe | IsAlreadyRun() Out : ret (BOOL) = 0
|
YandexPackSetup.exe | IsMSISrvFree() In |
YandexPackSetup.exe | IsMSISrvFree() : OpenMutex() err ret = 2
|
YandexPackSetup.exe | IsMSISrvFree() Out ret = 1
|
YandexPackSetup.exe | GetLoggedCreds_WTSSessionInfo(): szUserName = admin, szDomain = USER-PC, dwSessionId = 1
|
YandexPackSetup.exe | GetSidFromEnumSess(): LsaGetLogonSessionData(0) err = 5
|
YandexPackSetup.exe | GetSidFromEnumSess(): ProfileImagePath(1) = C:\Users\admin
|
YandexPackSetup.exe | GetSidFromEnumSess(): LsaEnumerateLogonSessions() lpszSid = S-1-5-21-1302019708-1500728564-335382590-1000
|
YandexPackSetup.exe | GetLoggedCreds_WTSSessionInfo(): szUserName = admin, szDomain = USER-PC, dwSessionId = 1
|