gootloader | a5bfa20263e563377182958dda2eb84d507618e50aef9186b3a62d7a2164a5d6

Analysis

max time kernel
122s
max time network
129s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
01-08-2024 14:16

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General

Target

trec commercial listing agreement 89746.js
Size

18.5MB
MD5

cfb2bcf1ba2da7959607296ef737e408
SHA1

81d5ecf0744a0efeb46d9690919baeada1db2089
SHA256

a5bfa20263e563377182958dda2eb84d507618e50aef9186b3a62d7a2164a5d6
SHA512

d691119bc8de513c1b2efcb66afbb5fa0bd54155b30a94741d7a7013a3c57cdb414ae9ed5e8b6191e5e5062bea5579fd6b6a039cc7eeed6cde7c8e83a972215b
SSDEEP

49152:kAw08dPXWR4ba/JOtdF5pHE2lsfiaahM3o43ORV59VDKtDxAw08dPXWR4ba/JOtH:3c43m5c43m5c43m5c43ml

Score

10^/10

gootloader execution loader

Malware Config

Signatures

GootLoader
JavaScript loader known for delivering other families such as Gootkit and Cobaltstrike.
loader gootloader
Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid	Process
2900	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	2900	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

taskeng.exewscript.EXEcscript.exe

description	pid	Process	procid_target
PID 1060 wrote to memory of 2000	1060	taskeng.exe	31
PID 1060 wrote to memory of 2000	1060	taskeng.exe	31
PID 1060 wrote to memory of 2000	1060	taskeng.exe	31
PID 2000 wrote to memory of 2064	2000	wscript.EXE	32
PID 2000 wrote to memory of 2064	2000	wscript.EXE	32
PID 2000 wrote to memory of 2064	2000	wscript.EXE	32
PID 2064 wrote to memory of 2900	2064	cscript.exe	34
PID 2064 wrote to memory of 2900	2064	cscript.exe	34
PID 2064 wrote to memory of 2900	2064	cscript.exe	34

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\trec commercial listing agreement 89746.js"
1⤵
PID:2816

C:\Windows\system32\taskeng.exe
taskeng.exe {0E0616ED-724C-476A-933D-B3830A1E3D67} S-1-5-21-2212144002-1172735686-1556890956-1000:MVFYZPLM\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1060
- C:\Windows\system32\wscript.EXE
  C:\Windows\system32\wscript.EXE OPTICA~1.JS
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2000
- - C:\Windows\System32\cscript.exe
    "C:\Windows\System32\cscript.exe" "OPTICA~1.JS"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2064
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

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

C:\Users\Admin\AppData\Roaming\Macromedia\OPTICA~1.JS

Filesize
41.5MB

MD5
2945f454bbc041d82edfbe4c7bdc3655

SHA1
083963a47c8c4effb8f315270ea1fe4955bf252b

SHA256
3831890ee7867fa9f2feb845dbf023a1009ecbff3c246616400592df35b9e7e7

SHA512
4fcc9b31a2568700ccd3657e1c0f4b0d2db16f67f289e4b42fa45769e702a45272717f3103537643b4231dc6b84e58e2a405c1788a79d4241d605c022ff9c103

Download Submit
memory/2900-7-0x000000001B240000-0x000000001B522000-memory.dmp

Filesize
2.9MB

Download
memory/2900-8-0x0000000002660000-0x0000000002668000-memory.dmp

Filesize
32KB

Download