analyze malware
- Huge database of samples and IOCs
- Custom VM setup
- Unlimited submissions
- Interactive approach
| File name: | YAOffer.exe |
| Full analysis: | https://app.any.run/tasks/0e80210e-11a7-4e60-a3bc-578fd1a1bb87 |
| 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: | November 16, 2019, 10:24:29 |
| 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: | A885397EE58F94C008330524F9B875E6 |
| SHA1: | 4267A2220B354653E92B1E7BF9F17C1811D9B8F2 |
| SHA256: | C76F4E4A196DF8D4CC18BF33309EAE375E123B0ECC898E628A430716908C5235 |
| SSDEEP: | 24576:ih2TbBh6W3vDvy7J6rxeABuSQG1VKdoGCr9gwSjT73vnkUN:TNvneAYSb5GC5SjT7PkUN |
MALICIOUS
Application was dropped or rewritten from another process
- downloader.exe (PID: 1404)
- downloader.exe (PID: 3900)
- YandexPackSetup.exe (PID: 2060)
- lite_installer.exe (PID: 3864)
- seederexe.exe (PID: 2700)
- sender.exe (PID: 3688)
Downloads executable files from the Internet
- downloader.exe (PID: 3900)
SUSPICIOUS
Executable content was dropped or overwritten
- YAOffer.exe (PID: 2028)
- msiexec.exe (PID: 2732)
- downloader.exe (PID: 3900)
- MsiExec.exe (PID: 2456)
Application launched itself
- downloader.exe (PID: 3900)
Reads Environment values
- MsiExec.exe (PID: 2456)
Creates files in the user directory
- seederexe.exe (PID: 2700)
INFO
Application launched itself
- msiexec.exe (PID: 2732)
Loads dropped or rewritten executable
- MsiExec.exe (PID: 2456)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 EXE PECompact compressed (generic) (79.7) |
|---|---|---|
| .exe | | | Win32 Executable (generic) (8.6) |
| .exe | | | Win16/32 Executable Delphi generic (3.9) |
| .exe | | | Generic Win/DOS Executable (3.8) |
| .exe | | | DOS Executable Generic (3.8) |
EXIF
EXE
| ProductVersion: | 1.0.0.0 |
|---|---|
| FileVersion: | 1.0.0.0 |
| CharacterSet: | Windows, Latin1 |
| LanguageCode: | English (U.S.) |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x0000 |
| ProductVersionNumber: | 1.0.0.0 |
| FileVersionNumber: | 1.0.58560.22781 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 5 |
| ImageVersion: | - |
| OSVersion: | 5 |
| EntryPoint: | 0x127238 |
| UninitializedDataSize: | - |
| InitializedDataSize: | 378368 |
| CodeSize: | 1205248 |
| LinkerVersion: | 2.25 |
| PEType: | PE32 |
| TimeStamp: | 2019:02:06 10:38:44+01:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 06-Feb-2019 09:38:44 |
| Detected languages: |
|
| FileVersion: | 1.0.0.0 |
| ProductVersion: | 1.0.0.0 |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0050 |
| Pages in file: | 0x0002 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x000F |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x001A |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000100 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 10 |
| Time date stamp: | 06-Feb-2019 09:38:44 |
| 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 | 0x00124FA0 | 0x00125000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.44164 |
.itext | 0x00126000 | 0x000012B0 | 0x00001400 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.11383 |
.data | 0x00128000 | 0x00004E54 | 0x00005000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 5.31973 |
.bss | 0x0012D000 | 0x000055C8 | 0x00000000 | IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.idata | 0x00133000 | 0x0000361A | 0x00003800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 5.00309 |
.didata | 0x00137000 | 0x0000085E | 0x00000A00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 3.58541 |
.tls | 0x00138000 | 0x00000040 | 0x00000000 | IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.rdata | 0x00139000 | 0x00000018 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 0.210826 |
.reloc | 0x0013A000 | 0x00019A24 | 0x00019C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 6.69594 |
.rsrc | 0x00154000 | 0x00039600 | 0x00039600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 6.59869 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 4.94843 | 818 | UNKNOWN | English - United States | RT_MANIFEST |
2 | 2.80231 | 308 | UNKNOWN | English - United States | RT_CURSOR |
3 | 3.00046 | 308 | UNKNOWN | English - United States | RT_CURSOR |
4 | 2.56318 | 308 | UNKNOWN | English - United States | RT_CURSOR |
5 | 2.6949 | 308 | UNKNOWN | English - United States | RT_CURSOR |
6 | 2.62527 | 308 | UNKNOWN | English - United States | RT_CURSOR |
7 | 2.91604 | 308 | UNKNOWN | English - United States | RT_CURSOR |
4077 | 3.27832 | 840 | UNKNOWN | UNKNOWN | RT_STRING |
4078 | 3.35201 | 760 | UNKNOWN | UNKNOWN | RT_STRING |
4079 | 3.30768 | 908 | UNKNOWN | UNKNOWN | RT_STRING |
Imports
advapi32.dll |
comctl32.dll |
gdi32.dll |
kernel32.dll |
kernel32.dll (delay-loaded) |
msimg32.dll |
ole32.dll |
oleaut32.dll |
shell32.dll |
user32.dll |
Total processes
42
Monitored processes
9
Malicious processes
2
Suspicious processes
2
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2028 | "C:\Users\admin\AppData\Local\Temp\YAOffer.exe" | C:\Users\admin\AppData\Local\Temp\YAOffer.exe | explorer.exe | |
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 1.0.0.0 | ||||
| 3900 | --partner 7286 --distr /quiet /msicl "YBDEFAULT=y VID=350" --try 5 | C:\Users\admin\AppData\Local\Temp\downloader.exe | YAOffer.exe | |
User: admin Integrity Level: MEDIUM Description: Setup Downloader Exit code: 0 Version: 0.1.0.32 | ||||
| 2060 | "C:\Users\admin\AppData\Local\Temp\7F4987FB1A6E43d69E3E94B29EB75926\YandexPackSetup.exe" /quiet /msicl "YBDEFAULT=y VID=350" | C:\Users\admin\AppData\Local\Temp\7F4987FB1A6E43d69E3E94B29EB75926\YandexPackSetup.exe | downloader.exe | |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Software Installer Exit code: 0 Version: 3.0.5419.0 | ||||
| 1404 | C:\Users\admin\AppData\Local\Temp\downloader.exe --stat dwnldr/p=7286/cnt=0/dt=5/ct=1/rt=0 --dh 332 --st 1573899893 | C:\Users\admin\AppData\Local\Temp\downloader.exe | downloader.exe | |
User: admin Integrity Level: MEDIUM Description: Setup Downloader Exit code: 0 Version: 0.1.0.32 | ||||
| 2732 | C:\Windows\system32\msiexec.exe /V | C:\Windows\system32\msiexec.exe | services.exe | |
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows® installer Version: 5.0.7600.16385 (win7_rtm.090713-1255) | ||||
| 2456 | C:\Windows\system32\MsiExec.exe -Embedding 15BA464EDD42C2E176DBA827D7DE534E | 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) | ||||
| 3864 | "C:\Users\admin\AppData\Local\Temp\FEA98C65-EE85-4CF3-848A-3A6557270F32\lite_installer.exe" --use-user-default-locale --silent --make-browser-default-after-import --YBDEFAULT --cumtom-welcome-page=https://browser.yandex.ru/promo/welcome_com/5/ | C:\Users\admin\AppData\Local\Temp\FEA98C65-EE85-4CF3-848A-3A6557270F32\lite_installer.exe | MsiExec.exe | |
User: admin Company: Yandex Integrity Level: MEDIUM Description: YandexBrowserDownloader Exit code: 0 Version: 1.0.1.88 | ||||
| 2700 | "C:\Users\admin\AppData\Local\Temp\567E3DC4-F0E5-4F19-981B-AC091F262424\seederexe.exe" "--yqs=" "--yhp=" "--ilight=" "--oem=" "--nopin=n" "--pin_custom=n" "--pin_desktop=n" "--pin_taskbar=y" "--locale=us" "--browser=" "--browser_default=y" "--yabm=" "--loglevel=trace" "--ess=" "--clids=C:\Users\admin\AppData\Local\Temp\clids-yasearch.xml" "--sender=C:\Users\admin\AppData\Local\Temp\9740C23E-43EA-47B3-8237-00AEE005479A\sender.exe" "--is_elevated=no" "--ui_level=2" "--good_token=x" | C:\Users\admin\AppData\Local\Temp\567E3DC4-F0E5-4F19-981B-AC091F262424\seederexe.exe | MsiExec.exe | |
User: admin Company: Yandex Integrity Level: MEDIUM Description: Browser Integration Module Exit code: 0 Version: 3.7.0.117 | ||||
| 3688 | C:\Users\admin\AppData\Local\Temp\9740C23E-43EA-47B3-8237-00AEE005479A\sender.exe --send "/status.xml?clid=2321290-350&uuid=af94d628-b1af-499b-ab02-49f85a7250fd&vnt=Windows 7x32&file-no=6%0A15%0A16%0A25%0A38%0A45%0A58%0A61%0A102%0A106%0A108%0A111%0A121%0A125%0A126%0A129%0A" | C:\Users\admin\AppData\Local\Temp\9740C23E-43EA-47B3-8237-00AEE005479A\sender.exe | seederexe.exe | |
User: admin Company: Yandex Integrity Level: MEDIUM Description: Yandex Statistics Exit code: 0 Version: 0.0.2.14 | ||||
Total events
1 185
Read events
1 120
Write events
0
Delete events
0
Modification events
Executable files
8
Suspicious files
7
Text files
91
Unknown types
7
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2060 | YandexPackSetup.exe | C:\Users\admin\AppData\Local\Temp\{5B964E0E-B9A3-4276-9ED9-4D5A5720747A}\YandexSearch.msi | — | |
MD5:— | SHA256:— | |||
| 2732 | msiexec.exe | C:\Windows\Installer\39c82c.msi | — | |
MD5:— | SHA256:— | |||
| 2732 | msiexec.exe | C:\Windows\Installer\MSICA41.tmp | — | |
MD5:— | SHA256:— | |||
| 2456 | MsiExec.exe | C:\Users\admin\AppData\Local\Temp\vendor00000.xml | — | |
MD5:— | SHA256:— | |||
| 2732 | msiexec.exe | C:\Windows\Installer\MSICA71.tmp | — | |
MD5:— | SHA256:— | |||
| 2732 | msiexec.exe | C:\Users\admin\AppData\Local\Temp\~DFC75EA0697D3E9CE0.TMP | — | |
MD5:— | SHA256:— | |||
| 2732 | msiexec.exe | C:\Windows\Installer\MSICADF.tmp | — | |
MD5:— | SHA256:— | |||
| 2732 | msiexec.exe | C:\Windows\Installer\MSICAFF.tmp | — | |
MD5:— | SHA256:— | |||
| 2732 | msiexec.exe | C:\Windows\Installer\MSICB1F.tmp | — | |
MD5:— | SHA256:— | |||
| 2732 | msiexec.exe | C:\Windows\Installer\MSICB5F.tmp | — | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
9
TCP/UDP connections
8
DNS requests
7
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3900 | downloader.exe | GET | 302 | 5.45.205.245:80 | http://downloader.yandex.net/yandex-pack/7286/YandexPackSetup.exe | RU | — | — | whitelisted |
3900 | downloader.exe | GET | 302 | 5.45.205.245:80 | http://downloader.yandex.net/yandex-pack/downloader/info.rss | RU | — | — | whitelisted |
1404 | downloader.exe | GET | — | 93.158.134.14:80 | http://clck.yandex.ru/click/dtype=stred/pid=12/cid=72435/path=dwnldr/p=7286/cnt=0/dt=5/ct=1/rt=2/imp=0/* | RU | — | — | whitelisted |
3900 | downloader.exe | GET | 200 | 5.45.205.221:80 | http://cache-default99i.cdn.yandex.net/downloader.yandex.net/yandex-pack/7286/YandexPackSetup.exe | RU | executable | 9.26 Mb | whitelisted |
3900 | downloader.exe | GET | 200 | 87.250.250.221:80 | http://cache-default99v.cdn.yandex.net/downloader.yandex.net/yandex-pack/downloader/info.rss | RU | xml | 267 b | whitelisted |
2028 | YAOffer.exe | GET | 200 | 172.217.21.238:80 | http://www.google-analytics.com/__utm.gif?utmwv=4.5.7&utmn=1456620370&utmhn=www.hamstersoft.com&utmp=[7286][7286][350][yaRun][YB_no][YBDEFAULT=y%20][Proc][18]%20&utmac=UA-55372372-2&utmcc=__utma%3D16359527.1698352392.1620634839.1150988808.1401617721.1%3B%2B__utmz%3D16359527.1327484844.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)%3B | US | image | 35 b | whitelisted |
2028 | YAOffer.exe | GET | 200 | 172.217.21.238:80 | http://www.google-analytics.com/__utm.gif?utmwv=4.5.7&utmn=1913584626&utmhn=www.hamstersoft.com&utmp=[7286][7286][350][offer_run]%20&utmac=UA-55372372-2&utmcc=__utma%3D16359527.1939436981.1031934848.1109676910.1820012217.1%3B%2B__utmz%3D16359527.1327484844.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)%3B | US | image | 35 b | whitelisted |
2700 | seederexe.exe | GET | 200 | 213.180.193.14:80 | http://clck.yandex.ru/click/dtype=stred/pid=198/cid=73068/path=3_7_0_117/GoogleChromeBeta=0/anti=0/antiNames=/browser=iexplore/clid=2321290-350/ff=32/gc=33/goodToken=x/googlin=0/ie=0/init=4417/mlru=0/op=2/op64=1/ui=%7Baf94d628-b1af-499b-ab02-49f85a7250fd%7D/yabro=0/%2A | RU | image | 43 b | whitelisted |
3688 | sender.exe | GET | 200 | 87.250.250.33:80 | http://soft.export.yandex.ru/status.xml?clid=2321290-350&uuid=af94d628-b1af-499b-ab02-49f85a7250fd&vnt=Windows%207x32&file-no=6%0A15%0A16%0A25%0A38%0A45%0A58%0A61%0A102%0A106%0A108%0A111%0A121%0A125%0A126%0A129 | RU | xml | 64 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 |
|---|---|---|---|---|---|---|
2028 | YAOffer.exe | 172.217.21.238:80 | www.google-analytics.com | Google Inc. | US | whitelisted |
1404 | downloader.exe | 93.158.134.14:80 | clck.yandex.ru | YANDEX LLC | RU | whitelisted |
3864 | lite_installer.exe | 213.180.193.14:80 | clck.yandex.ru | YANDEX LLC | RU | whitelisted |
3900 | downloader.exe | 5.45.205.221:80 | cache-default99i.cdn.yandex.net | YANDEX LLC | RU | whitelisted |
3900 | downloader.exe | 5.45.205.245:80 | downloader.yandex.net | YANDEX LLC | RU | whitelisted |
2700 | seederexe.exe | 213.180.193.14:80 | clck.yandex.ru | YANDEX LLC | RU | whitelisted |
3900 | downloader.exe | 87.250.250.221:80 | cache-default99v.cdn.yandex.net | YANDEX LLC | RU | whitelisted |
3688 | sender.exe | 87.250.250.33:80 | soft.export.yandex.ru | YANDEX LLC | RU | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
www.google-analytics.com |
| whitelisted |
downloader.yandex.net |
| whitelisted |
cache-default99v.cdn.yandex.net |
| whitelisted |
cache-default99i.cdn.yandex.net |
| whitelisted |
clck.yandex.ru |
| whitelisted |
soft.export.yandex.ru |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
3900 | downloader.exe | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |
1404 | downloader.exe | Attempted Information Leak | ET POLICY curl User-Agent Outbound |
1 ETPRO signatures available at the full report
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
|