| File name: | posgrabber.exe |
| Full analysis: | https://app.any.run/tasks/1efa9b6e-f331-48c9-b76e-7cf8f3329ce4 |
| Verdict: | Malicious activity |
| Threats: | Stealers are a group of malicious software that are intended for gaining unauthorized access to users’ information and transferring it to the attacker. The stealer malware category includes various types of programs that focus on their particular kind of data, including files, passwords, and cryptocurrency. Stealers are capable of spying on their targets by recording their keystrokes and taking screenshots. This type of malware is primarily distributed as part of phishing campaigns. |
| Analysis date: | January 10, 2022, 16:02:26 |
| 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: | 529FB026F6B804FD24F0743275E826C4 |
| SHA1: | FCCB85C0CBC44E5F846868BC4C1CC285DBE91916 |
| SHA256: | 4FC6B4E42650B9F85EBFE2D2FA8925956049F5E2E1E9C5A74D806CF759479113 |
| SSDEEP: | 768:kyBzxh2C3eOnY9lKOhWhJ96x4F3jsOkCscznnjubX/:ks1ErhqJwR0znnjeP |
MALICIOUS
Changes the autorun value in the registry
- iexplore.exe (PID: 3364)
Drops executable file immediately after starts
- iexplore.exe (PID: 3364)
DEXTER was detected
- iexplore.exe (PID: 3364)
Connects to CnC server
- iexplore.exe (PID: 3364)
SUSPICIOUS
Starts Internet Explorer
- posgrabber.exe (PID: 2796)
Checks supported languages
- posgrabber.exe (PID: 2796)
Executable content was dropped or overwritten
- iexplore.exe (PID: 3364)
Drops a file with a compile date too recent
- iexplore.exe (PID: 3364)
INFO
Creates files in the user directory
- iexplore.exe (PID: 3364)
Checks supported languages
- iexplore.exe (PID: 3364)
- iexplore.exe (PID: 3496)
- explorer.exe (PID: 1968)
Reads the computer name
- iexplore.exe (PID: 3364)
- explorer.exe (PID: 1968)
Application launched itself
- iexplore.exe (PID: 3364)
Changes internet zones settings
- iexplore.exe (PID: 3364)
Manual execution by user
- explorer.exe (PID: 1968)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable MS Visual C++ (generic) (42.2) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (37.3) |
| .dll | | | Win32 Dynamic Link Library (generic) (8.8) |
| .exe | | | Win32 Executable (generic) (6) |
| .exe | | | Generic Win/DOS Executable (2.7) |
EXIF
EXE
| Subsystem: | Windows GUI |
|---|---|
| SubsystemVersion: | 6 |
| ImageVersion: | - |
| OSVersion: | 6 |
| EntryPoint: | 0x3490 |
| UninitializedDataSize: | - |
| InitializedDataSize: | 12288 |
| CodeSize: | 18944 |
| LinkerVersion: | 14.28 |
| PEType: | PE32 |
| TimeStamp: | 2022:01:10 12:50:07+01:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 10-Jan-2022 11:50:07 |
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: | 0x000000D0 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 4 |
| Time date stamp: | 10-Jan-2022 11:50:07 |
| 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 | 0x000048C7 | 0x00004A00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 5.91686 |
.data | 0x00006000 | 0x00001AE4 | 0x00000E00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 4.79642 |
.idata | 0x00008000 | 0x00000B6E | 0x00000C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.03805 |
.reloc | 0x00009000 | 0x00000618 | 0x00000800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 5.78593 |
Imports
ADVAPI32.dll |
KERNEL32.dll |
RPCRT4.dll |
SHELL32.dll |
SHLWAPI.dll |
USER32.dll |
WININET.dll |
ole32.dll |
urlmon.dll |
Total processes
40
Monitored processes
4
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1968 | "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) Modules
| |||||||||||||||
| 2796 | "C:\Users\admin\Desktop\posgrabber.exe" | C:\Users\admin\Desktop\posgrabber.exe | — | Explorer.EXE | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 3364 | "C:\Program Files\Internet Explorer\iexplore.exe" | C:\Program Files\Internet Explorer\iexplore.exe | posgrabber.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Internet Explorer Exit code: 0 Version: 11.00.9600.16428 (winblue_gdr.131013-1700) Modules
| |||||||||||||||
| 3496 | "C:\Program Files\Internet Explorer\iexplore.exe" | C:\Program Files\Internet Explorer\iexplore.exe | — | iexplore.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Internet Explorer Exit code: 0 Version: 11.00.9600.16428 (winblue_gdr.131013-1700) Modules
| |||||||||||||||
Total events
443
Read events
412
Write events
31
Delete events
0
Modification events
| (PID) Process: | (3364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Resilience Software |
| Operation: | write | Name: | Digit |
Value: b912f0b4-ce73-41c5-ae1a-e7525274b937 | |||
| (PID) Process: | (3364) iexplore.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | b912f0b4-ce73-41c5-ae1a-e7525274b937 |
Value: C:\Users\admin\AppData\Roaming\buvvi\buvvi.exe | |||
| (PID) Process: | (3364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | b912f0b4-ce73-41c5-ae1a-e7525274b937 |
Value: C:\Users\admin\AppData\Roaming\buvvi\buvvi.exe | |||
| (PID) Process: | (3364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0 |
| Operation: | write | Name: | 1806 |
Value: 0 | |||
| (PID) Process: | (3364) iexplore.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0 |
| Operation: | write | Name: | 1806 |
Value: 0 | |||
| (PID) Process: | (3364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content |
| Operation: | write | Name: | CachePrefix |
Value: | |||
| (PID) Process: | (3364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
| (PID) Process: | (3364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History |
| Operation: | write | Name: | CachePrefix |
Value: Visited: | |||
| (PID) Process: | (3364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings |
| Operation: | write | Name: | ProxyEnable |
Value: 0 | |||
| (PID) Process: | (3364) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections |
| Operation: | write | Name: | SavedLegacySettings |
Value: 460000003B010000090000000000000000000000000000000400000000000000C0E333BBEAB1D3010000000000000000000000000100000002000000C0A80164000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 | |||
Executable files
1
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3364 | iexplore.exe | C:\Users\admin\AppData\Roaming\buvvi\buvvi.exe | executable | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
10
TCP/UDP connections
11
DNS requests
0
Threats
20
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3364 | iexplore.exe | POST | 200 | 78.198.121.158:80 | http://78.198.121.158/gateway.php | FR | — | — | malicious |
3364 | iexplore.exe | POST | 200 | 78.198.121.158:80 | http://78.198.121.158/gateway.php | FR | — | — | malicious |
3364 | iexplore.exe | POST | 200 | 78.198.121.158:80 | http://78.198.121.158/gateway.php | FR | — | — | malicious |
3364 | iexplore.exe | POST | 200 | 78.198.121.158:80 | http://78.198.121.158/gateway.php | FR | — | — | malicious |
3364 | iexplore.exe | POST | 200 | 78.198.121.158:80 | http://78.198.121.158/gateway.php | FR | — | — | malicious |
3364 | iexplore.exe | POST | 200 | 78.198.121.158:80 | http://78.198.121.158/gateway.php | FR | — | — | malicious |
3364 | iexplore.exe | POST | 200 | 78.198.121.158:80 | http://78.198.121.158/gateway.php | FR | — | — | malicious |
3364 | iexplore.exe | POST | 200 | 78.198.121.158:80 | http://78.198.121.158/gateway.php | FR | — | — | malicious |
3364 | iexplore.exe | POST | 200 | 78.198.121.158:80 | http://78.198.121.158/gateway.php | FR | — | — | malicious |
3364 | iexplore.exe | POST | 200 | 78.198.121.158:80 | http://78.198.121.158/gateway.php | FR | — | — | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3364 | iexplore.exe | 78.198.121.158:80 | — | Free SAS | FR | malicious |
DNS requests
Threats
PID | Process | Class | Message |
|---|---|---|---|
3364 | iexplore.exe | A Network Trojan was detected | ET TROJAN W32/Dexter Infostealer CnC POST |
3364 | iexplore.exe | A Network Trojan was detected | AV TROJAN Dexter POS Checkin |
3364 | iexplore.exe | A Network Trojan was detected | ET TROJAN W32/Dexter Infostealer CnC POST |
3364 | iexplore.exe | A Network Trojan was detected | AV TROJAN Dexter POS Checkin |
3364 | iexplore.exe | A Network Trojan was detected | ET TROJAN W32/Dexter Infostealer CnC POST |
3364 | iexplore.exe | A Network Trojan was detected | AV TROJAN Dexter POS Checkin |
3364 | iexplore.exe | A Network Trojan was detected | ET TROJAN W32/Dexter Infostealer CnC POST |
3364 | iexplore.exe | A Network Trojan was detected | AV TROJAN Dexter POS Checkin |
3364 | iexplore.exe | A Network Trojan was detected | ET TROJAN W32/Dexter Infostealer CnC POST |
3364 | iexplore.exe | A Network Trojan was detected | AV TROJAN Dexter POS Checkin |