Resubmissions
10-04-2024 02:38
240410-c4pceacb24 1010-04-2024 02:37
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231014-bxezqahg8w 10Analysis
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max time kernel
1144s -
max time network
1114s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
10-04-2024 02:37
Behavioral task
behavioral1
Sample
k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral4
Sample
k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe
Resource
win11-20240221-en
General
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Target
k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe
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Size
339KB
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MD5
1cab66a5c15f97f040fb23d354d04a9c
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SHA1
f0dbebd22b2c7bfedbefa4435b345c58416f9448
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SHA256
d71329c78c704ee9cc7133761b5e738a315e7eb784e348d7743a8a7366724e9f
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SHA512
a5508a75a0a7c747cc50fe8284b9097e1cb9ae83bd7e80553ffa875a6d07d6eec7fc18f66a0a328aa0614c26642d884bfe152e6c09a11eeb0d64f6be66064eab
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SSDEEP
3072:gdrpN/JlLKd5hkad0lk0vGJGMlngDBXrkhamyeFykt9sxc8eTRLUvenjLM/zNlgl:0UGPUvva+lxXY6uXAJMI9bAV0D
Malware Config
Extracted
gurcu
https://api.telegram.org/bot6193093056:AAHzyNGUGS9aUG6CCx6ENLoXpCFLzEQywIQ/sendMessage?chat_id=1098292643
Signatures
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Executes dropped EXE 20 IoCs
pid Process 208 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 2768 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 2624 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 4944 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 3184 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 4272 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 4148 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 1044 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 4696 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 4532 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 400 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 2160 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 3480 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 2848 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 1028 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 1516 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 3184 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 700 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 1344 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 1928 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1904658062-880901768-3903781817-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Key opened \REGISTRY\USER\S-1-5-21-1904658062-880901768-3903781817-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Key opened \REGISTRY\USER\S-1-5-21-1904658062-880901768-3903781817-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 5056 schtasks.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 3648 PING.EXE -
Suspicious use of AdjustPrivilegeToken 20 IoCs
description pid Process Token: SeDebugPrivilege 3612 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 208 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 2768 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 2624 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 3184 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 4272 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 4148 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 1044 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 4696 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 4532 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 400 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 2160 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 3480 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 2848 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 1028 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 1516 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 3184 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 700 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 1344 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe Token: SeDebugPrivilege 1928 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 3612 wrote to memory of 3288 3612 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 72 PID 3612 wrote to memory of 3288 3612 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe 72 PID 3288 wrote to memory of 220 3288 cmd.exe 74 PID 3288 wrote to memory of 220 3288 cmd.exe 74 PID 3288 wrote to memory of 3648 3288 cmd.exe 75 PID 3288 wrote to memory of 3648 3288 cmd.exe 75 PID 3288 wrote to memory of 5056 3288 cmd.exe 76 PID 3288 wrote to memory of 5056 3288 cmd.exe 76 PID 3288 wrote to memory of 208 3288 cmd.exe 77 PID 3288 wrote to memory of 208 3288 cmd.exe 77 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1904658062-880901768-3903781817-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1904658062-880901768-3903781817-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe"C:\Users\Admin\AppData\Local\Temp\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3612 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C chcp 65001 && ping 127.0.0.1 && schtasks /create /tn "k2fef4820980d3c2c1f2cce2f95e94f5e1c18" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe" /rl HIGHEST /f && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe" &&START "" "C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3288 -
C:\Windows\system32\chcp.comchcp 650013⤵PID:220
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C:\Windows\system32\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3648
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C:\Windows\system32\schtasks.exeschtasks /create /tn "k2fef4820980d3c2c1f2cce2f95e94f5e1c18" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
PID:5056
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe"C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:208
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2768
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2624
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
PID:4944
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3184
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4272
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4148
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1044
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4696
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4532
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:400
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2160
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3480
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2848
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1028
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1516
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3184
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:700
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1344
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C:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exeC:\Users\Admin\AppData\Local\TeamViewer\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1928
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\k2fef4820980d3c2c1f2cce2f95e94f5e1c18.exe.log
Filesize847B
MD5a908a7c6e93edeb3e400780b6fe62dde
SHA136e2b437f41443f6b41b45b35a0f97b2cd94123d
SHA256cae801b0499949178298c1c1a083f7c0febb971d262be9c9588437af66c76ef0
SHA512deb437dcb1440d37bcd61dfa43be05fd01856a1d1e59aa5b2dfa142e9ae584b0577eea024edb99d8e74e3a1b606bb7ae3b4f9cd8eb30813e67dda678b9319cbe
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Filesize
339KB
MD51cab66a5c15f97f040fb23d354d04a9c
SHA1f0dbebd22b2c7bfedbefa4435b345c58416f9448
SHA256d71329c78c704ee9cc7133761b5e738a315e7eb784e348d7743a8a7366724e9f
SHA512a5508a75a0a7c747cc50fe8284b9097e1cb9ae83bd7e80553ffa875a6d07d6eec7fc18f66a0a328aa0614c26642d884bfe152e6c09a11eeb0d64f6be66064eab