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| File name: | downloader.exe |
| Full analysis: | https://app.any.run/tasks/9e38447f-58e6-4190-ba3d-d68ec72385d8 |
| Verdict: | Malicious activity |
| Analysis date: | March 31, 2020, 08:06:00 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (console) Intel 80386, for MS Windows |
| MD5: | 7C50697E82AF91A4533FC7D340391836 |
| SHA1: | 23F002F051A9A7DCA73609A18E9552A0D42CFEDF |
| SHA256: | E3D83530ADB92A4C9ADEFD2651A01EFFD02DEE13487FE169E612424760700C25 |
| SSDEEP: | 96:v6NpR1JBKDZos2hZDqk+kkreoPMq6cZkqAO7VthcE0:SNjzYqsqZDqk+kroPMq6Ckqflf0 |
MALICIOUS
No malicious indicators.SUSPICIOUS
Reads Internet Cache Settings
- downloader.exe (PID: 1720)
- downloader.exe (PID: 2184)
- downloader.exe (PID: 3404)
- downloader.exe (PID: 256)
Executable content was dropped or overwritten
- downloader.exe (PID: 1720)
- downloader.exe (PID: 3404)
- downloader.exe (PID: 256)
Creates files in the program directory
- downloader.exe (PID: 2184)
INFO
Manual execution by user
- downloader.exe (PID: 2184)
- downloader.exe (PID: 3404)
- downloader.exe (PID: 256)
- a.exe (PID: 1940)
- a.exe (PID: 2484)
- a.exe (PID: 2676)
- explorer.exe (PID: 3020)
- opera.exe (PID: 3368)
Creates files in the user directory
- opera.exe (PID: 3368)
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: | 2017:06:28 15:56:39+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 2048 |
| InitializedDataSize: | 3072 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x12e8 |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows command line |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_CUI |
| Compilation Date: | 28-Jun-2017 13:56:39 |
| Detected languages: |
|
| Debug artifacts: |
|
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: | 0x000000E0 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 4 |
| Time date stamp: | 28-Jun-2017 13:56:39 |
| 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 | 0x00000752 | 0x00000800 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 5.71732 |
.rdata | 0x00002000 | 0x00000702 | 0x00000800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.35344 |
.data | 0x00003000 | 0x00000384 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0.352759 |
.rsrc | 0x00004000 | 0x000001AC | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.26515 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.05186 | 338 | Latin 1 / Western European | English - United States | RT_MANIFEST |
Imports
KERNEL32.dll |
MSVCR80.dll |
urlmon.dll |
Total processes
57
Monitored processes
10
Malicious processes
0
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 1720 | "C:\Users\admin\Desktop\downloader.exe" | C:\Users\admin\Desktop\downloader.exe | explorer.exe | |
User: admin Integrity Level: MEDIUM Exit code: 0 | ||||
| 2184 | "C:\Users\admin\Desktop\downloader.exe" | C:\Users\admin\Desktop\downloader.exe | explorer.exe | |
User: admin Integrity Level: HIGH Exit code: 3221225786 | ||||
| 3404 | "C:\Users\admin\Desktop\downloader.exe" | C:\Users\admin\Desktop\downloader.exe | explorer.exe | |
User: admin Integrity Level: MEDIUM Exit code: 0 | ||||
| 256 | "C:\Users\admin\Desktop\downloader.exe" | C:\Users\admin\Desktop\downloader.exe | explorer.exe | |
User: admin Integrity Level: MEDIUM Exit code: 0 | ||||
| 3360 | "c:\Program Files\a.exe" | c:\Program Files\a.exe | — | downloader.exe |
User: admin Company: Kakao Corp. Integrity Level: MEDIUM Description: KakaoTalk Setup Exit code: 3221226540 Version: 3.1.1.2441 | ||||
| 3020 | "C:\Windows\explorer.exe" | C:\Windows\explorer.exe | — | explorer.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Explorer Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 1940 | "C:\Program Files\a.exe" | C:\Program Files\a.exe | explorer.exe | |
User: admin Company: Kakao Corp. Integrity Level: HIGH Description: KakaoTalk Setup Exit code: 2 Version: 3.1.1.2441 | ||||
| 2484 | "C:\Program Files\a.exe" | C:\Program Files\a.exe | — | explorer.exe |
User: admin Company: Kakao Corp. Integrity Level: MEDIUM Description: KakaoTalk Setup Exit code: 3221226540 Version: 3.1.1.2441 | ||||
| 2676 | "C:\Program Files\a.exe" | C:\Program Files\a.exe | explorer.exe | |
User: admin Company: Kakao Corp. Integrity Level: HIGH Description: KakaoTalk Setup Exit code: 2 Version: 3.1.1.2441 | ||||
| 3368 | "C:\Program Files\Opera\opera.exe" | C:\Program Files\Opera\opera.exe | explorer.exe | |
User: admin Company: Opera Software Integrity Level: MEDIUM Description: Opera Internet Browser Version: 1748 | ||||
Total events
339
Read events
245
Write events
0
Delete events
0
Modification events
Executable files
3
Suspicious files
23
Text files
3
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2184 | downloader.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\78RFYB7Z\KakaoTalk_Setup[1].exe | — | |
MD5:— | SHA256:— | |||
| 2184 | downloader.exe | C:\Program Files\a.exe | — | |
MD5:— | SHA256:— | |||
| 3368 | opera.exe | C:\Users\admin\AppData\Roaming\Opera\Opera\opr9597.tmp | — | |
MD5:— | SHA256:— | |||
| 3368 | opera.exe | C:\Users\admin\AppData\Roaming\Opera\Opera\opr95C7.tmp | — | |
MD5:— | SHA256:— | |||
| 3368 | opera.exe | C:\Users\admin\AppData\Local\Opera\Opera\cache\sesn\opr00001.tmp | — | |
MD5:— | SHA256:— | |||
| 3368 | opera.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\6F2H3NUBXBOKPH6SI30J.temp | — | |
MD5:— | SHA256:— | |||
| 3368 | opera.exe | C:\Users\admin\AppData\Roaming\Opera\Opera\opssl6.dat | binary | |
MD5:7D12009D18CD6C9DE8259B5EDC79D989 | SHA256:0829461DF2CAC75EA9567408AF18701646F3590B8E376C85917F2FF56CFDF66E | |||
| 3404 | downloader.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\B6QGX7LP\KakaoTalk_Setup[1].exe | executable | |
MD5:B607A40699BAAEDE5D271992736882EE | SHA256:92274DF0F18E51FDFF02CD63CE28A9CF3BAFB58EB69C9B8ABCDABF9394E1B360 | |||
| 3368 | opera.exe | C:\Users\admin\AppData\Roaming\Opera\Opera\operaprefs.ini | text | |
MD5:F601C4F5EE237C4DB7D09AD0D0BD0B39 | SHA256:AE0F28BCB1A31817A654777135332BC2CFE415513945CE21CAFA7C9AA3ADFD0B | |||
| 1720 | downloader.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\78RFYB7Z\KakaoTalk_Setup[1].exe | executable | |
MD5:44572B6DDA187DA3FCE7EB61595BCF66 | SHA256:108776657C2D8D109F8C8C54F66A72E5AB9DA9A9A46F431DC1A34E90A64B0FF4 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
5
TCP/UDP connections
7
DNS requests
3
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
256 | downloader.exe | GET | — | 203.238.180.12:80 | http://app.pc.kakao.com/talk/win32/KakaoTalk_Setup.exe | KR | — | — | malicious |
3404 | downloader.exe | GET | — | 203.238.180.12:80 | http://app.pc.kakao.com/talk/win32/KakaoTalk_Setup.exe | KR | — | — | malicious |
1720 | downloader.exe | GET | — | 203.238.180.12:80 | http://app.pc.kakao.com/talk/win32/KakaoTalk_Setup.exe | KR | — | — | malicious |
2184 | downloader.exe | GET | — | 203.238.180.12:80 | http://app.pc.kakao.com/talk/win32/KakaoTalk_Setup.exe | KR | — | — | malicious |
3368 | opera.exe | GET | 200 | 93.184.220.29:80 | http://crl4.digicert.com/DigiCertHighAssuranceEVRootCA.crl | US | der | 564 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 |
|---|---|---|---|---|---|---|
3404 | downloader.exe | 203.238.180.12:80 | app.pc.kakao.com | Kakao Corp | KR | suspicious |
1720 | downloader.exe | 203.238.180.12:80 | app.pc.kakao.com | Kakao Corp | KR | suspicious |
256 | downloader.exe | 203.238.180.12:80 | app.pc.kakao.com | Kakao Corp | KR | suspicious |
2184 | downloader.exe | 203.238.180.12:80 | app.pc.kakao.com | Kakao Corp | KR | suspicious |
3368 | opera.exe | 93.184.220.29:80 | crl4.digicert.com | MCI Communications Services, Inc. d/b/a Verizon Business | US | whitelisted |
3368 | opera.exe | 185.26.182.94:443 | certs.opera.com | Opera Software AS | — | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
app.pc.kakao.com |
| malicious |
certs.opera.com |
| whitelisted |
crl4.digicert.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1720 | downloader.exe | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |
3404 | downloader.exe | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |