Analysis
- max time kernel
141s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system - submitted
24/07/2023, 08:41
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
INV 88000354.exe
Resource
win7-20230712-en
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
INV 88000354.exe
Resource
win10v2004-20230703-en
13 signatures
150 seconds
General
- Target INV 88000354.exe
- Size 701KB
- Sample230724-klez1scd3s
- SHA256 b2dcddc1c5777df047cd93bfbe626778c4fd4974a6f82f14716c8a27c7f72417
- MD5 3fe698c910f56305c5ed060dfafbd086
- SHA1 50d4cd16c88e97fc685ed02c85f7cb299b8d0857
- SHA512 db344ba4ab820a69ed971dbc9fa4a34063302be9d8a3d27868c0b253e9fd2c922c99e203258af95e1948666c3f71215d66585f5b1dda194fa069d9900049b215
- SSDEEP 12288:FhvJRBusyNmAhVOh2x84oBHME6aPL8eugyfAIDxXDKO:HFuppOh2RoR4MIDpD
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
snakekeylogger
Credentials
-
Protocol
smtp
-
Host
smtp.mtbooks.com.mx
-
Port
587
-
Username
-
Password
^QGUcHQjx3
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 2 IoCs
resource yara_rule behavioral2/memory/2080-142-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral2/memory/2080-147-0x0000000005310000-0x0000000005320000-memory.dmp family_snakekeylogger - 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-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INV 88000354.exe Key opened \REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INV 88000354.exe Key opened \REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INV 88000354.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 54 checkip.dyndns.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1128 set thread context of 2080 1128 INV 88000354.exe 99 - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1128 INV 88000354.exe 1128 INV 88000354.exe 2080 INV 88000354.exe 2080 INV 88000354.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 2080 INV 88000354.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1128 INV 88000354.exe Token: SeDebugPrivilege 2080 INV 88000354.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1128 wrote to memory of 2080 1128 INV 88000354.exe 99 PID 1128 wrote to memory of 2080 1128 INV 88000354.exe 99 PID 1128 wrote to memory of 2080 1128 INV 88000354.exe 99 PID 1128 wrote to memory of 2080 1128 INV 88000354.exe 99 PID 1128 wrote to memory of 2080 1128 INV 88000354.exe 99 PID 1128 wrote to memory of 2080 1128 INV 88000354.exe 99 PID 1128 wrote to memory of 2080 1128 INV 88000354.exe 99 PID 1128 wrote to memory of 2080 1128 INV 88000354.exe 99 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INV 88000354.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INV 88000354.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\INV 88000354.exe"C:\Users\Admin\AppData\Local\Temp\INV 88000354.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1128 -
C:\Users\Admin\AppData\Local\Temp\INV 88000354.exe"C:\Users\Admin\AppData\Local\Temp\INV 88000354.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2080
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\INV 88000354.exe.log
- Size 1KB
- SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
- MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
- SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
- SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
- MD5 SHA1 SHA512