gootloader | 1d8b7f7ea3f1cdb83824b2d7e4d4e1fefe78ad2621e79e7126edad68703ab658

Analysis

max time kernel
147s
max time network
90s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
29/06/2023, 09:27

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General

Target
difference between license agreement and concession agreement 16581.js
Size 160KB
Sample230629-le5grsce82
SHA256 9b3e8591f163538867d5962f7dd1281214ded9184361f431aff7d6bffc6c345a
MD5 10fcd3a832b51329217273795018a89f
SHA1 826c928fd35859bc17d81d8ff9ac205cb5455a95
SHA512 fc6678fa77b50797113e0ea81e1de86ef4d84c408f16df8187901db4901f8019f7a6bbf91a34c764a0938d1c2e5b209550e58020c214f2a67602e764ed22e9e4
SSDEEP 3072:oAg1kjSdLgjr6y8odCeiu3g0yR63uTO8MSaV6cZGHxeFKQJXecOkC6cbHiHNEku+:oAg1kjSdLgj2y8odLiu3g0yR63uTO8Mh
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gootloader loader

Malware Config

Signatures

GootLoader
JavaScript loader known for delivering other families such as Gootkit and Cobaltstrike.
loader gootloader

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Control Panel\International\Geo\Nation	wscript.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4748	powershell.exe
4748	powershell.exe
4748	powershell.exe
4748	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4748	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 4392	2232	wscript.EXE	98
PID 2232 wrote to memory of 4392	2232	wscript.EXE	98
PID 4392 wrote to memory of 4748	4392	cscript.exe	100
PID 4392 wrote to memory of 4748	4392	cscript.exe	100

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.
persistence

Query Registry
T1012

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\difference between license agreement and concession agreement 16581.js"
1⤵
PID:876

C:\Windows\system32\wscript.EXE
C:\Windows\system32\wscript.EXE PATENT~1.JS
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\System32\cscript.exe
  "C:\Windows\System32\cscript.exe" "PATENT~1.JS"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4392
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4748

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_rtenbtz5.rv3.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rtenbtz5.rv3.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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PATENT~1.JS

Path C:\Users\Admin\AppData\Roaming\Sun\PATENT~1.JS
Size 40.9MB
SHA256 f09e1cc996b9a1bd549efc3e0ffaaa34ddd421921ed36032108db4fa5dc7aff3
MD5 4f97a43b98986529d19e6f55769eca42
SHA1 3cd12202afdf32e1f6ca653948819b1d8f3d8111
SHA512 f0e689fc62f1824f0b0407f8c96a5d3af2e45cf83ac6dbfeecdb733ef45664baf09fbe6fd572427a3ef10c6f0d6f3770c242ba6b553752d2557abc4c6834dba6
SSDEEP 49152:ZCGtBfdeDl9n5pVBMWTAESwjkhjDlOtD2/OIUQBIJ8PLcdg4D5RS8h1DEX+VZfJJ:o
MD5 SHA1 SHA512 SSDEEP

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memory/4748-141-0x000001CC55390000-0x000001CC553A0000-memory.dmp

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memory/4748-142-0x000001CC55390000-0x000001CC553A0000-memory.dmp

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memory/4748-147-0x000001CC6FC40000-0x000001CC6FC62000-memory.dmp

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memory/4748-148-0x000001CC70030000-0x000001CC70074000-memory.dmp

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memory/4748-149-0x000001CC70100000-0x000001CC70176000-memory.dmp

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memory/4748-150-0x000001CC55390000-0x000001CC553A0000-memory.dmp

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memory/4748-151-0x000001CC55390000-0x000001CC553A0000-memory.dmp

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