Resubmissions
10-04-2024 02:49
240410-da1n1sfe7v 1010-04-2024 02:49
240410-daz3gscc34 1010-04-2024 02:48
240410-dazfyscc32 1010-04-2024 02:48
240410-dayvesfe7s 1014-10-2023 03:45
231014-ea62gage69 10Analysis
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max time kernel
298s -
max time network
300s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
10-04-2024 02:48
Behavioral task
behavioral1
Sample
B9a5797cb584014f3fede.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
B9a5797cb584014f3fede.exe
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
B9a5797cb584014f3fede.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral4
Sample
B9a5797cb584014f3fede.exe
Resource
win11-20240221-en
General
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Target
B9a5797cb584014f3fede.exe
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Size
530KB
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MD5
862e7aeb18ba5892f51b5712a213a614
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SHA1
99d86e4247f52c3ea9b2bb476af66dfc7707fa8d
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SHA256
44eca198c64197c511441f644895afd6a2777c28bcb6a376d4d4623b030ced31
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SHA512
678fc8fb5dc887f41db90e6341229ce35c830ffac4cbb91ea669ab5e8bc849bae05c15909ae62e4dfd3a249bb2ff062eaa0e256989fe203863db0396c60ec713
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SSDEEP
6144:XHClm6SWPoK5Z0EwVSmRPQd/t/a2zDGVPJXvnzZjDJHb571Kjn1929XDccHd8JyO:XHCnZxb88RatpvnzZjDv7oj19yTNTY
Malware Config
Extracted
gurcu
https://api.telegram.org/bot6176004110:AAFKA5be4dMwA848HWxzYIzrzzOGIHMOJGc/sendMessage?chat_id=615133582
Signatures
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Checks computer location settings 2 TTPs 7 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation B9a5797cb584014f3fede.exe Key value queried \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation B9a5797cb584014f3fede.exe Key value queried \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation B9a5797cb584014f3fede.exe Key value queried \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation B9a5797cb584014f3fede.exe Key value queried \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation B9a5797cb584014f3fede.exe Key value queried \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation B9a5797cb584014f3fede.exe Key value queried \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation B9a5797cb584014f3fede.exe -
Executes dropped EXE 12 IoCs
pid Process 4920 B9a5797cb584014f3fede.exe 4676 tor.exe 3652 B9a5797cb584014f3fede.exe 2052 tor.exe 4856 B9a5797cb584014f3fede.exe 216 tor.exe 4980 B9a5797cb584014f3fede.exe 4876 tor.exe 3224 B9a5797cb584014f3fede.exe 660 tor.exe 5024 B9a5797cb584014f3fede.exe 3580 tor.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-1-5-21-399997616-3400990511-967324271-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 B9a5797cb584014f3fede.exe Key opened \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 B9a5797cb584014f3fede.exe Key opened \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 B9a5797cb584014f3fede.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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 52 ip-api.com -
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 2632 schtasks.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2392 PING.EXE -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 4920 B9a5797cb584014f3fede.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeDebugPrivilege 3236 B9a5797cb584014f3fede.exe Token: SeDebugPrivilege 4920 B9a5797cb584014f3fede.exe Token: SeDebugPrivilege 3652 B9a5797cb584014f3fede.exe Token: SeDebugPrivilege 4856 B9a5797cb584014f3fede.exe Token: SeDebugPrivilege 4980 B9a5797cb584014f3fede.exe Token: SeDebugPrivilege 3224 B9a5797cb584014f3fede.exe Token: SeDebugPrivilege 5024 B9a5797cb584014f3fede.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 3236 wrote to memory of 372 3236 B9a5797cb584014f3fede.exe 88 PID 3236 wrote to memory of 372 3236 B9a5797cb584014f3fede.exe 88 PID 372 wrote to memory of 2368 372 cmd.exe 91 PID 372 wrote to memory of 2368 372 cmd.exe 91 PID 372 wrote to memory of 2392 372 cmd.exe 92 PID 372 wrote to memory of 2392 372 cmd.exe 92 PID 372 wrote to memory of 2632 372 cmd.exe 96 PID 372 wrote to memory of 2632 372 cmd.exe 96 PID 372 wrote to memory of 4920 372 cmd.exe 97 PID 372 wrote to memory of 4920 372 cmd.exe 97 PID 4920 wrote to memory of 2856 4920 B9a5797cb584014f3fede.exe 100 PID 4920 wrote to memory of 2856 4920 B9a5797cb584014f3fede.exe 100 PID 4920 wrote to memory of 4676 4920 B9a5797cb584014f3fede.exe 102 PID 4920 wrote to memory of 4676 4920 B9a5797cb584014f3fede.exe 102 PID 3652 wrote to memory of 2052 3652 B9a5797cb584014f3fede.exe 109 PID 3652 wrote to memory of 2052 3652 B9a5797cb584014f3fede.exe 109 PID 4856 wrote to memory of 216 4856 B9a5797cb584014f3fede.exe 115 PID 4856 wrote to memory of 216 4856 B9a5797cb584014f3fede.exe 115 PID 4980 wrote to memory of 4876 4980 B9a5797cb584014f3fede.exe 120 PID 4980 wrote to memory of 4876 4980 B9a5797cb584014f3fede.exe 120 PID 3224 wrote to memory of 660 3224 B9a5797cb584014f3fede.exe 125 PID 3224 wrote to memory of 660 3224 B9a5797cb584014f3fede.exe 125 PID 5024 wrote to memory of 3580 5024 B9a5797cb584014f3fede.exe 130 PID 5024 wrote to memory of 3580 5024 B9a5797cb584014f3fede.exe 130 -
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-1-5-21-399997616-3400990511-967324271-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 B9a5797cb584014f3fede.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 B9a5797cb584014f3fede.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\B9a5797cb584014f3fede.exe"C:\Users\Admin\AppData\Local\Temp\B9a5797cb584014f3fede.exe"1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3236 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C chcp 65001 && ping 127.0.0.1 && schtasks /create /tn "B9a5797cb584014f3fede" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\Nvidia\B9a5797cb584014f3fede.exe" /rl HIGHEST /f && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\B9a5797cb584014f3fede.exe" &&START "" "C:\Users\Admin\AppData\Local\Nvidia\B9a5797cb584014f3fede.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:372 -
C:\Windows\system32\chcp.comchcp 650013⤵PID:2368
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C:\Windows\system32\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:2392
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C:\Windows\system32\schtasks.exeschtasks /create /tn "B9a5797cb584014f3fede" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\Nvidia\B9a5797cb584014f3fede.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
PID:2632
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C:\Users\Admin\AppData\Local\Nvidia\B9a5797cb584014f3fede.exe"C:\Users\Admin\AppData\Local\Nvidia\B9a5797cb584014f3fede.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4920 -
C:\Windows\System32\tar.exe"C:\Windows\System32\tar.exe" -xvzf "C:\Users\Admin\AppData\Local\Temp\tmp3548.tmp" -C "C:\Users\Admin\AppData\Local\gzrj1xdnai"4⤵PID:2856
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C:\Users\Admin\AppData\Local\gzrj1xdnai\tor\tor.exe"C:\Users\Admin\AppData\Local\gzrj1xdnai\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\gzrj1xdnai\torrc.txt"4⤵
- Executes dropped EXE
PID:4676
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C:\Users\Admin\AppData\Local\Nvidia\B9a5797cb584014f3fede.exeC:\Users\Admin\AppData\Local\Nvidia\B9a5797cb584014f3fede.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3652 -
C:\Users\Admin\AppData\Local\gzrj1xdnai\tor\tor.exe"C:\Users\Admin\AppData\Local\gzrj1xdnai\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\gzrj1xdnai\torrc.txt"2⤵
- Executes dropped EXE
PID:2052
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C:\Users\Admin\AppData\Local\Nvidia\B9a5797cb584014f3fede.exeC:\Users\Admin\AppData\Local\Nvidia\B9a5797cb584014f3fede.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4856 -
C:\Users\Admin\AppData\Local\gzrj1xdnai\tor\tor.exe"C:\Users\Admin\AppData\Local\gzrj1xdnai\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\gzrj1xdnai\torrc.txt"2⤵
- Executes dropped EXE
PID:216
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C:\Users\Admin\AppData\Local\Nvidia\B9a5797cb584014f3fede.exeC:\Users\Admin\AppData\Local\Nvidia\B9a5797cb584014f3fede.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4980 -
C:\Users\Admin\AppData\Local\gzrj1xdnai\tor\tor.exe"C:\Users\Admin\AppData\Local\gzrj1xdnai\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\gzrj1xdnai\torrc.txt"2⤵
- Executes dropped EXE
PID:4876
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C:\Users\Admin\AppData\Local\Nvidia\B9a5797cb584014f3fede.exeC:\Users\Admin\AppData\Local\Nvidia\B9a5797cb584014f3fede.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3224 -
C:\Users\Admin\AppData\Local\gzrj1xdnai\tor\tor.exe"C:\Users\Admin\AppData\Local\gzrj1xdnai\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\gzrj1xdnai\torrc.txt"2⤵
- Executes dropped EXE
PID:660
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C:\Users\Admin\AppData\Local\Nvidia\B9a5797cb584014f3fede.exeC:\Users\Admin\AppData\Local\Nvidia\B9a5797cb584014f3fede.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5024 -
C:\Users\Admin\AppData\Local\gzrj1xdnai\tor\tor.exe"C:\Users\Admin\AppData\Local\gzrj1xdnai\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\gzrj1xdnai\torrc.txt"2⤵
- Executes dropped EXE
PID:3580
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
847B
MD53308a84a40841fab7dfec198b3c31af7
SHA14e7ab6336c0538be5dd7da529c0265b3b6523083
SHA256169bc31a8d1666535977ca170d246a463e6531bb21faab6c48cb4269d9d60b2e
SHA51297521d5fb94efdc836ea2723098a1f26a7589a76af51358eee17292d29c9325baf53ad6b4496c5ca3e208d1c9b9ad6797a370e2ae378072fc68f5d6e8b73b198
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Filesize
530KB
MD5862e7aeb18ba5892f51b5712a213a614
SHA199d86e4247f52c3ea9b2bb476af66dfc7707fa8d
SHA25644eca198c64197c511441f644895afd6a2777c28bcb6a376d4d4623b030ced31
SHA512678fc8fb5dc887f41db90e6341229ce35c830ffac4cbb91ea669ab5e8bc849bae05c15909ae62e4dfd3a249bb2ff062eaa0e256989fe203863db0396c60ec713
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Filesize
13.3MB
MD589d2d5811c1aff539bb355f15f3ddad0
SHA15bb3577c25b6d323d927200c48cd184a3e27c873
SHA256b630008f6d3887793d48b87091e56691e292894dd4fa100dc4a418a2f29dcc12
SHA51239e576124c54143520c5435a2ef9b24506131e13403489c0692f09b89135015d611c4988d4772f8a1e6557fa68b4667d467334461009cee8c2227dfc3e295289
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Filesize
2.7MB
MD5a0db8a87f7b723266c8b04255da46b06
SHA14df00ea56d22d88f3d2e005ef66bad5b3ef92ebf
SHA25660b43cdce0f807f7891521f396f53def34a7d98986dbde0faa2a197189c587f3
SHA51241b8fc467d11af7ca6a42c7e94d1b8295ab3ae5d6d186b4f378e6e079440520e8324b695da1134beb2bc1697d2491edcc70c1b75ab6fc66b9c1cb2ecbcdb4a7d
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Filesize
9.1MB
MD542e51f2ee140bc989a81fb6a0f7e8c71
SHA1237d4ff6a6c2b927fe30a4936752284f79d11746
SHA256b8d471bc2dd3d8c1e64ada2157df8c381b28c56aa8c82fd9f6bd1ad77f576a81
SHA51275f418feef003c4ee1277c2b291f3e608824acb95574e3e5e17a3f80904576211d650cb3389156cca0f39d256e9afac2ed5e0eba97c6138e78a36e5dac1733b4
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Filesize
64B
MD5a9a05a3def7e31f9309939081d8899d8
SHA15ff2471bc5e2e6bb5029c995fab0966cba58aab7
SHA25600d7dddc5c1ce8b10d179767a2a80a1708307450fd3ffe4c9cb25a32a2b88273
SHA512b3e78e444dc374237af5af4bda74fa5383da1c671d4c6d6e5e40369e439535d78f6d1149f19c17fc5eb1ee455401233ba8db5f4512636a332e120e8fd07d20ca
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Filesize
4B
MD59ca8c9b0996bbf05ae7753d34667a6fd
SHA1d574c24b623c1073a5b9a332b77a7ca39d4f4df4
SHA256d5c4f67a138cbcbcf840e8f78ce5280fc4f07beaf61c725ef109c8da727c3fd4
SHA512b73f536f1579770deca118642004516d62deed6e4abca66cde2e498654351a5d8385123e9886a16d6a3050a11845e74a4c536a88f2dbfb8c852e040476f1bda3
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Filesize
7.4MB
MD588590909765350c0d70c6c34b1f31dd2
SHA1129b27c3926e53e5df6d44cc6adf39c3a8d9ebf7
SHA25646fe244b548265c78ab961e8f787bc8bf21edbcaaf175fa3b8be3137c6845a82
SHA512a8af08d9169a31a1c3419d4e6e8fbe608c800d323840563b5a560d3e09e78a492201f07cc0d3864efbff8ad81e59885fc43a6b749e0a3377aa8555df258af192
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Filesize
218B
MD5cf5fef09135c72361ba52212d7ec8aed
SHA177792b0f57fd9ca302e3ae384c98a2440827a8ba
SHA25697c65575e2ad5dd3a913cf69a14340b74ed4468a2879b8f1f4dd0552b938fed6
SHA5123180f5b66af85580852d5ca5219b2b41b6e2b529a4976befed096b45ca6e79676214e66812524ab0fe01f3e9493db425abbcb48c9119764254b524a534dea36d