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10/04/2024, 02:58
240410-dgn9kacd461010/04/2024, 02:58
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230823-sb7laaed4110Analysis
- max time kernel
597s - max time network
597s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system - submitted
10/04/2024, 02:58
Behavioral task
behavioral1
Sample
loader.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
loader.exe
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
loader.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral4
Sample
loader.exe
Resource
win11-20240221-en
General
- Target loader.exe
- Size 401KB
- Sample240410-dgnb9sff7w
- SHA256 8d647fd3ebb00c9d853eb728ff7cba75b7a089d30f84090e3bc1dc460bdd47f3
- MD5 69e3cdc923b668aec4cb405c040565c6
- SHA1 6a675ebf6f241e543f7bb50ccc8ead462a427880
- SHA512 5580919f6710fc210f079875eae22a87c85e854b57f59d10fc22680460f370154d7d223a66c9797387e4675a7954ba6f051a34571499481927980eb9ebf07cdb
- SSDEEP 6144:+CGmWI/2hvRn6Ie646G0D1eBlxy9bAmI6:+KWI/8B6Q9b5eBlxnmI6
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
gurcu
-
https://api.telegram.org/bot6193093056:AAHzyNGUGS9aUG6CCx6ENLoXpCFLzEQywIQ/sendMessage?chat_id=1098292643
Signatures
- Executes dropped EXE 22 IoCs
pid Process 4216 loader.exe 400 tor.exe 1184 loader.exe 1340 tor.exe 72 loader.exe 2788 tor.exe 392 loader.exe 4428 tor.exe 3688 loader.exe 5116 tor.exe 232 loader.exe 2216 tor.exe 3636 loader.exe 2952 tor.exe 1696 loader.exe 1648 tor.exe 3868 loader.exe 1232 tor.exe 4496 loader.exe 1688 tor.exe 3996 loader.exe 4944 tor.exe - 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-1-5-21-2930051783-2551506282-3430162621-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 loader.exe Key opened \REGISTRY\USER\S-1-5-21-2930051783-2551506282-3430162621-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 loader.exe Key opened \REGISTRY\USER\S-1-5-21-2930051783-2551506282-3430162621-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 loader.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 1 ip-api.com - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1824 schtasks.exe - Runs ping.exe 1 TTPs 1 IoCs
pid Process 3212 PING.EXE - Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 4216 loader.exe - Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2848 loader.exe Token: SeDebugPrivilege 4216 loader.exe Token: SeDebugPrivilege 1184 loader.exe Token: SeDebugPrivilege 72 loader.exe Token: SeDebugPrivilege 392 loader.exe Token: SeDebugPrivilege 3688 loader.exe Token: SeDebugPrivilege 232 loader.exe Token: SeDebugPrivilege 3636 loader.exe Token: SeDebugPrivilege 1696 loader.exe Token: SeDebugPrivilege 3868 loader.exe Token: SeDebugPrivilege 4496 loader.exe Token: SeDebugPrivilege 3996 loader.exe - Suspicious use of WriteProcessMemory 34 IoCs
description pid Process procid_target PID 2848 wrote to memory of 2380 2848 loader.exe 78 PID 2848 wrote to memory of 2380 2848 loader.exe 78 PID 2380 wrote to memory of 2548 2380 cmd.exe 80 PID 2380 wrote to memory of 2548 2380 cmd.exe 80 PID 2380 wrote to memory of 3212 2380 cmd.exe 81 PID 2380 wrote to memory of 3212 2380 cmd.exe 81 PID 2380 wrote to memory of 1824 2380 cmd.exe 82 PID 2380 wrote to memory of 1824 2380 cmd.exe 82 PID 2380 wrote to memory of 4216 2380 cmd.exe 83 PID 2380 wrote to memory of 4216 2380 cmd.exe 83 PID 4216 wrote to memory of 4836 4216 loader.exe 84 PID 4216 wrote to memory of 4836 4216 loader.exe 84 PID 4216 wrote to memory of 400 4216 loader.exe 86 PID 4216 wrote to memory of 400 4216 loader.exe 86 PID 1184 wrote to memory of 1340 1184 loader.exe 90 PID 1184 wrote to memory of 1340 1184 loader.exe 90 PID 72 wrote to memory of 2788 72 loader.exe 96 PID 72 wrote to memory of 2788 72 loader.exe 96 PID 392 wrote to memory of 4428 392 loader.exe 101 PID 392 wrote to memory of 4428 392 loader.exe 101 PID 3688 wrote to memory of 5116 3688 loader.exe 106 PID 3688 wrote to memory of 5116 3688 loader.exe 106 PID 232 wrote to memory of 2216 232 loader.exe 111 PID 232 wrote to memory of 2216 232 loader.exe 111 PID 3636 wrote to memory of 2952 3636 loader.exe 116 PID 3636 wrote to memory of 2952 3636 loader.exe 116 PID 1696 wrote to memory of 1648 1696 loader.exe 121 PID 1696 wrote to memory of 1648 1696 loader.exe 121 PID 3868 wrote to memory of 1232 3868 loader.exe 126 PID 3868 wrote to memory of 1232 3868 loader.exe 126 PID 4496 wrote to memory of 1688 4496 loader.exe 131 PID 4496 wrote to memory of 1688 4496 loader.exe 131 PID 3996 wrote to memory of 4944 3996 loader.exe 136 PID 3996 wrote to memory of 4944 3996 loader.exe 136 - 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.
- outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2930051783-2551506282-3430162621-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 loader.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2930051783-2551506282-3430162621-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 loader.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\loader.exe"C:\Users\Admin\AppData\Local\Temp\loader.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2848 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C chcp 65001 && ping 127.0.0.1 && schtasks /create /tn "loader" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\TeamViewer\loader.exe" /rl HIGHEST /f && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\loader.exe" &&START "" "C:\Users\Admin\AppData\Local\TeamViewer\loader.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2380 -
C:\Windows\system32\chcp.comchcp 650013⤵PID:2548
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C:\Windows\system32\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3212
-
-
C:\Windows\system32\schtasks.exeschtasks /create /tn "loader" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\TeamViewer\loader.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
PID:1824
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-
C:\Users\Admin\AppData\Local\TeamViewer\loader.exe"C:\Users\Admin\AppData\Local\TeamViewer\loader.exe"3⤵
- 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:4216 -
C:\Windows\System32\tar.exe"C:\Windows\System32\tar.exe" -xvzf "C:\Users\Admin\AppData\Local\Temp\tmp74E2.tmp" -C "C:\Users\Admin\AppData\Local\jjmzzxbvaf"4⤵PID:4836
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C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe"C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\jjmzzxbvaf\torrc.txt"4⤵
- Executes dropped EXE
PID:400
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-
-
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C:\Users\Admin\AppData\Local\TeamViewer\loader.exeC:\Users\Admin\AppData\Local\TeamViewer\loader.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1184 -
C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe"C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\jjmzzxbvaf\torrc.txt"2⤵
- Executes dropped EXE
PID:1340
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-
C:\Users\Admin\AppData\Local\TeamViewer\loader.exeC:\Users\Admin\AppData\Local\TeamViewer\loader.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:72 -
C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe"C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\jjmzzxbvaf\torrc.txt"2⤵
- Executes dropped EXE
PID:2788
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-
C:\Users\Admin\AppData\Local\TeamViewer\loader.exeC:\Users\Admin\AppData\Local\TeamViewer\loader.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:392 -
C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe"C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\jjmzzxbvaf\torrc.txt"2⤵
- Executes dropped EXE
PID:4428
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-
C:\Users\Admin\AppData\Local\TeamViewer\loader.exeC:\Users\Admin\AppData\Local\TeamViewer\loader.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3688 -
C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe"C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\jjmzzxbvaf\torrc.txt"2⤵
- Executes dropped EXE
PID:5116
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C:\Users\Admin\AppData\Local\TeamViewer\loader.exeC:\Users\Admin\AppData\Local\TeamViewer\loader.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:232 -
C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe"C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\jjmzzxbvaf\torrc.txt"2⤵
- Executes dropped EXE
PID:2216
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C:\Users\Admin\AppData\Local\TeamViewer\loader.exeC:\Users\Admin\AppData\Local\TeamViewer\loader.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3636 -
C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe"C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\jjmzzxbvaf\torrc.txt"2⤵
- Executes dropped EXE
PID:2952
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C:\Users\Admin\AppData\Local\TeamViewer\loader.exeC:\Users\Admin\AppData\Local\TeamViewer\loader.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1696 -
C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe"C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\jjmzzxbvaf\torrc.txt"2⤵
- Executes dropped EXE
PID:1648
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C:\Users\Admin\AppData\Local\TeamViewer\loader.exeC:\Users\Admin\AppData\Local\TeamViewer\loader.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3868 -
C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe"C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\jjmzzxbvaf\torrc.txt"2⤵
- Executes dropped EXE
PID:1232
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C:\Users\Admin\AppData\Local\TeamViewer\loader.exeC:\Users\Admin\AppData\Local\TeamViewer\loader.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4496 -
C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe"C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\jjmzzxbvaf\torrc.txt"2⤵
- Executes dropped EXE
PID:1688
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C:\Users\Admin\AppData\Local\TeamViewer\loader.exeC:\Users\Admin\AppData\Local\TeamViewer\loader.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3996 -
C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe"C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe" -f "C:\Users\Admin\AppData\Local\jjmzzxbvaf\torrc.txt"2⤵
- Executes dropped EXE
PID:4944
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\loader.exe.log
- Size 847B
- SHA256 50a57273ecb794e53b0622eb841341e2643c11f53fa47356e6e754ab2268171d
- MD5 486ebddc86ea8b3e965d390d22283a23
- SHA1 eaffc047f067084867e8575c576a9ec60e094ba8
- SHA512 0a50ba02250b38355a6f4fb94e40c61258a74031d9aea7cdf675f3e068f39ec0748ecf292aaf2f94b1963b9d66516ee79aa6c552617048e248774af0ff07189d
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\TeamViewer\loader.exe
- Size 401KB
- SHA256 8d647fd3ebb00c9d853eb728ff7cba75b7a089d30f84090e3bc1dc460bdd47f3
- MD5 69e3cdc923b668aec4cb405c040565c6
- SHA1 6a675ebf6f241e543f7bb50ccc8ead462a427880
- SHA512 5580919f6710fc210f079875eae22a87c85e854b57f59d10fc22680460f370154d7d223a66c9797387e4675a7954ba6f051a34571499481927980eb9ebf07cdb
- SSDEEP 6144:+CGmWI/2hvRn6Ie646G0D1eBlxy9bAmI6:+KWI/8B6Q9b5eBlxnmI6
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\tmp74E2.tmp
- Size 13.3MB
- SHA256 b630008f6d3887793d48b87091e56691e292894dd4fa100dc4a418a2f29dcc12
- MD5 89d2d5811c1aff539bb355f15f3ddad0
- SHA1 5bb3577c25b6d323d927200c48cd184a3e27c873
- SHA512 39e576124c54143520c5435a2ef9b24506131e13403489c0692f09b89135015d611c4988d4772f8a1e6557fa68b4667d467334461009cee8c2227dfc3e295289
- SSDEEP 393216:2YEKAkOvd2hKJDrq/OtTCRMTJqIdLZOBgfZn:XEJP2cJD2+GOJqMZOBGZn
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\jjmzzxbvaf\data\cached-microdesc-consensus
- Size 2.7MB
- SHA256 60b43cdce0f807f7891521f396f53def34a7d98986dbde0faa2a197189c587f3
- MD5 a0db8a87f7b723266c8b04255da46b06
- SHA1 4df00ea56d22d88f3d2e005ef66bad5b3ef92ebf
- SHA512 41b8fc467d11af7ca6a42c7e94d1b8295ab3ae5d6d186b4f378e6e079440520e8324b695da1134beb2bc1697d2491edcc70c1b75ab6fc66b9c1cb2ecbcdb4a7d
- SSDEEP 12288:v8nySbLlrTqASpoC6J9gRbMVwvKZq2gbIIuXM6h4Uviymjo09LQQ:vMxBSu+1MpKR6l6yMQQ
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\jjmzzxbvaf\data\cached-microdescs.new
- Size 5.6MB
- SHA256 c0180382ad3aa438ae4119030e5be5f4957e4bbee0849250f2cf9d1fabbb6765
- MD5 6f2b8aabd3f16370562a29120997d603
- SHA1 deab07b573af0a5495b17749ce802a4c1de4aa5d
- SHA512 4b20269fd1d56d56a1efeac847ae1790b2d53fde48e13c26e2838fb9689e55a4ed760d86ac672b41954b239b1dd57956951a04a80e011ff50428544589c78cce
- SSDEEP 24576:81Scl2deqqkyqMGGEgA+iPdlY5i7Lv/Yh2TG/2VqaCSBFbZcqQ8OU5bdgcA2Ynuh:xGM+ohp
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\jjmzzxbvaf\host\hostname
- Size 64B
- SHA256 9bb20e8650377dd9668bf935d3c4741fc4871637bdcc74c890912047bb3f1d8c
- MD5 418b2cd3e40315baca43b90418c04160
- SHA1 3a8d32b451ed2e27181674863fa343c9e4b87450
- SHA512 78125acc8022f529939f2462e1570e1f219c654766ca47b16e0f0694b81c70713d9295ce407429c2bb0a16d327eb9d507587988c5aea0f0b45fe55f498bdbf47
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\jjmzzxbvaf\port.dat
- Size 4B
- SHA256 daab3aa68185b677bd3c8d63f12e48eacb0851d98d635137e531fd579a452486
- MD5 fca0789e7891cbc0583298a238316122
- SHA1 9e1f505e74ca9864c9132ba05e0670d85ff56fe5
- SHA512 5bfd2472de37812bea557b2a10ade9f8e11981ff02d0257e8f5a48b624c332becd528d11c9ec20bea67342e6f9c977e500c2af77e98dd35e4cc7d52462b03a53
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\jjmzzxbvaf\tor\tor.exe
- Size 7.4MB
- SHA256 46fe244b548265c78ab961e8f787bc8bf21edbcaaf175fa3b8be3137c6845a82
- MD5 88590909765350c0d70c6c34b1f31dd2
- SHA1 129b27c3926e53e5df6d44cc6adf39c3a8d9ebf7
- SHA512 a8af08d9169a31a1c3419d4e6e8fbe608c800d323840563b5a560d3e09e78a492201f07cc0d3864efbff8ad81e59885fc43a6b749e0a3377aa8555df258af192
- SSDEEP 98304:3iPgwPv8LqpP5ZkfiSMdm+KHMU2O1R0fzwkEOlcHA6IZGQ:VbM8jjX1R0R6YL
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\jjmzzxbvaf\torrc.txt
- Size 218B
- SHA256 a2c8729c185f481c61cb83268e3785ae3e17376c7e4aeacfb8eee05cbd793efd
- MD5 eb7ff4333aebea7ae5809989f099fadc
- SHA1 5d7739b8ef004a208038102817ada13815725d93
- SHA512 1431073a3906b216313b5fa824558b5c949dde26c38560a746e717871057d659d7c8b8f9fe19557d2c475012b90ec259dab99ddfbea3efd9e325ec535d34146f
- MD5 SHA1 SHA512