Analysis
- max time kernel
100s - max time network
125s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
16/04/2023, 17:23
Static task
static1
Behavioral task
behavioral1
Sample
PO 876YUIYT.xlsx.exe
Resource
win7-20230220-en
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
PO 876YUIYT.xlsx.exe
Resource
win10v2004-20230220-en
13 signatures
150 seconds
General
- Target PO 876YUIYT.xlsx.exe
- Size 878KB
- Sample230416-vx4smacd71
- SHA256 6d5571a7a6c0286f8d7e41b94a1de3d63fbc2cfd06e52b9040767a47d0ae416c
- MD5 d9ef2e648f463fd6eb3f8c40f2a738a2
- SHA1 0f5f3b4b6905a452de23bd78236089a592ab5ebe
- SHA512 d7970f0fc5f1f06cf642e29e4ae2ff11d3ae26251ed86ebc8d0a8181bcee326cc51b72c3c1cba0364eea95c955e76dec791ee8ac625568ddd51df1642313f89a
- SSDEEP 12288:zuSiPUY4eVPd0JIVVbkY5LTD/0v7BLP3S7c+X5TII:aSEUYV6IV5T5Ln/mdDypsI
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
snakekeylogger
C2
-
https://api.telegram.org/bot5818680343:AAGVJsfIHcopySiifMCdAaFCv-ICp2_Yo_M/sendMessage?chat_id=5765702254
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 3 IoCs
resource yara_rule behavioral2/memory/3012-140-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral2/memory/3012-143-0x0000000005670000-0x0000000005680000-memory.dmp family_snakekeylogger behavioral2/memory/3012-145-0x0000000005670000-0x0000000005680000-memory.dmp family_snakekeylogger - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO 876YUIYT.xlsx.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO 876YUIYT.xlsx.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO 876YUIYT.xlsx.exe - Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 40 checkip.dyndns.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3964 set thread context of 3012 3964 PO 876YUIYT.xlsx.exe 92 - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3012 PO 876YUIYT.xlsx.exe 3012 PO 876YUIYT.xlsx.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3012 PO 876YUIYT.xlsx.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3964 wrote to memory of 3012 3964 PO 876YUIYT.xlsx.exe 92 PID 3964 wrote to memory of 3012 3964 PO 876YUIYT.xlsx.exe 92 PID 3964 wrote to memory of 3012 3964 PO 876YUIYT.xlsx.exe 92 PID 3964 wrote to memory of 3012 3964 PO 876YUIYT.xlsx.exe 92 PID 3964 wrote to memory of 3012 3964 PO 876YUIYT.xlsx.exe 92 PID 3964 wrote to memory of 3012 3964 PO 876YUIYT.xlsx.exe 92 PID 3964 wrote to memory of 3012 3964 PO 876YUIYT.xlsx.exe 92 PID 3964 wrote to memory of 3012 3964 PO 876YUIYT.xlsx.exe 92 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO 876YUIYT.xlsx.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO 876YUIYT.xlsx.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO 876YUIYT.xlsx.exe"C:\Users\Admin\AppData\Local\Temp\PO 876YUIYT.xlsx.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3964 -
C:\Users\Admin\AppData\Local\Temp\PO 876YUIYT.xlsx.exe"C:\Users\Admin\AppData\Local\Temp\PO 876YUIYT.xlsx.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3012
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO 876YUIYT.xlsx.exe.log
- Size 1KB
- SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
- MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
- SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
- SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
- MD5 SHA1 SHA512