024acc542d965f6bb037356c877b8e544055068d06ac4f5f81a00274e5964c4e

Analysis

max time kernel
600s
max time network
601s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
14-02-2023 11:23

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General

Target

Specification.exe
Size

295KB
MD5

6c4166241e9dd7e55249cf4d9dedba3a
SHA1

a052f58f9a348cf693d80c6831dfc885baec23ef
SHA256

2cbadf3f08bde65e99a75e12eb5a7eba6290bb6159a9850001b5a0f90b289c0e
SHA512

4fe962dcaf993fc39cb9538d05a0433f968ad642c96df7f38aac0051afd2bbf210b306dc4b838673c9ad65dcdde42f724e183ee2cc6e75afd983b78eda5d23b7
SSDEEP

6144:PYa69oq/ZRMDmB5n7E+gf7U0FNbWE+z9T87vjV3oQ5eqP+p8c26M:PYfo8ZODmHgbo0FgEiJ8B3oQ5eqP+pKN

Score

7^/10

Malware Config

Signatures

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	tvjkel.exe

Executes dropped EXE 2 IoCs

pid	Process
1664	tvjkel.exe
4248	tvjkel.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1664 set thread context of 4248	1664	tvjkel.exe	82
PID 4248 set thread context of 600	4248	tvjkel.exe	41
PID 4516 set thread context of 600	4516	cmmon32.exe	41

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4532	2200	WerFault.exe	86

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmmon32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4248	tvjkel.exe
4248	tvjkel.exe
4248	tvjkel.exe
4248	tvjkel.exe
4248	tvjkel.exe
4248	tvjkel.exe
4248	tvjkel.exe
4248	tvjkel.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
600	Explorer.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
1664	tvjkel.exe
4248	tvjkel.exe
4248	tvjkel.exe
4248	tvjkel.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe
4516	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 16 IoCs

description	pid	Process
Token: SeDebugPrivilege	4248	tvjkel.exe
Token: SeDebugPrivilege	4516	cmmon32.exe
Token: SeShutdownPrivilege	600	Explorer.EXE
Token: SeCreatePagefilePrivilege	600	Explorer.EXE
Token: SeShutdownPrivilege	600	Explorer.EXE
Token: SeCreatePagefilePrivilege	600	Explorer.EXE
Token: SeShutdownPrivilege	600	Explorer.EXE
Token: SeCreatePagefilePrivilege	600	Explorer.EXE
Token: SeShutdownPrivilege	600	Explorer.EXE
Token: SeCreatePagefilePrivilege	600	Explorer.EXE
Token: SeShutdownPrivilege	600	Explorer.EXE
Token: SeCreatePagefilePrivilege	600	Explorer.EXE
Token: SeShutdownPrivilege	600	Explorer.EXE
Token: SeCreatePagefilePrivilege	600	Explorer.EXE
Token: SeShutdownPrivilege	600	Explorer.EXE
Token: SeCreatePagefilePrivilege	600	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 1664	2372	Specification.exe	81
PID 2372 wrote to memory of 1664	2372	Specification.exe	81
PID 2372 wrote to memory of 1664	2372	Specification.exe	81
PID 1664 wrote to memory of 4248	1664	tvjkel.exe	82
PID 1664 wrote to memory of 4248	1664	tvjkel.exe	82
PID 1664 wrote to memory of 4248	1664	tvjkel.exe	82
PID 1664 wrote to memory of 4248	1664	tvjkel.exe	82
PID 600 wrote to memory of 4516	600	Explorer.EXE	84
PID 600 wrote to memory of 4516	600	Explorer.EXE	84
PID 600 wrote to memory of 4516	600	Explorer.EXE	84
PID 4516 wrote to memory of 2200	4516	cmmon32.exe	86
PID 4516 wrote to memory of 2200	4516	cmmon32.exe	86
PID 4516 wrote to memory of 2200	4516	cmmon32.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:600
- C:\Users\Admin\AppData\Local\Temp\Specification.exe
  "C:\Users\Admin\AppData\Local\Temp\Specification.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2372
- - C:\Users\Admin\AppData\Local\Temp\tvjkel.exe
    "C:\Users\Admin\AppData\Local\Temp\tvjkel.exe" C:\Users\Admin\AppData\Local\Temp\mctzftild.g
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:1664
  - - C:\Users\Admin\AppData\Local\Temp\tvjkel.exe
      "C:\Users\Admin\AppData\Local\Temp\tvjkel.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:4248
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1020
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4516
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:2200
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2200 -s 200
      4⤵
      Program crash
      PID:4532

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 456 -p 2200 -ip 2200
1⤵
PID:4768

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

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\Local\Temp\lplasygsf.ysb

Filesize
205KB

MD5
6f8d0a6210134e21cb2a9bdf3dd07217

SHA1
6af61771f92d3ea7ddeef0151202f44fa9eb67a8

SHA256
793a48ce824dc6547c37f5079ee989febb5079f5682ece6d6305966d4cc3a67b

SHA512
c9a140fc522ef82db93cafc728e0d8c45530b6c2ac3166447548ef8267b0e69e1bc46ce86c5c67fef03cdc56bd3b963fceb7d67eac2a34564a3942d592b38959

Download Submit
C:\Users\Admin\AppData\Local\Temp\mctzftild.g

Filesize
5KB

MD5
a156959c4196968969edf33fa299053d

SHA1
64c987d8a657eb99aa78ecb77d4fac6f1732110d

SHA256
1e96299e2b0c7f446214497c0bc9926c4ad8ac8b2a1555c5c3b08cc57f427507

SHA512
3cfb6d230ddf431f6dfc6bc493a02f9514f76528d7d3bd6ada23647b81677f46224f5af361868de624ee73bb2079c62cbdf855c66c8df2d0ef8795377f369de7

Download Submit
C:\Users\Admin\AppData\Local\Temp\tvjkel.exe

Filesize
101KB

MD5
47f16d991abe4a7ca791e761f473d7d8

SHA1
12b35684609eb4b63c989e10cc2edbf099bc777e

SHA256
2b4525be8957377a3352564c4007397f53e2d0c2c0016a1593422c422376cb52

SHA512
1eb8221e700fdc81fd3a5b7071fb1b2de0ee0cd291ef98e34761f32f33a227eea12fea68d2ea9d9888887865629bf0a12cc6f586e922eeeddd89fe369c2af02e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tvjkel.exe

Filesize
101KB

MD5
47f16d991abe4a7ca791e761f473d7d8

SHA1
12b35684609eb4b63c989e10cc2edbf099bc777e

SHA256
2b4525be8957377a3352564c4007397f53e2d0c2c0016a1593422c422376cb52

SHA512
1eb8221e700fdc81fd3a5b7071fb1b2de0ee0cd291ef98e34761f32f33a227eea12fea68d2ea9d9888887865629bf0a12cc6f586e922eeeddd89fe369c2af02e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tvjkel.exe

Filesize
101KB

MD5
47f16d991abe4a7ca791e761f473d7d8

SHA1
12b35684609eb4b63c989e10cc2edbf099bc777e

SHA256
2b4525be8957377a3352564c4007397f53e2d0c2c0016a1593422c422376cb52

SHA512
1eb8221e700fdc81fd3a5b7071fb1b2de0ee0cd291ef98e34761f32f33a227eea12fea68d2ea9d9888887865629bf0a12cc6f586e922eeeddd89fe369c2af02e

Download Submit
memory/600-142-0x00000000086E0000-0x00000000087EB000-memory.dmp

Filesize
1.0MB

Download
memory/600-150-0x0000000003450000-0x0000000003548000-memory.dmp

Filesize
992KB

Download
memory/600-149-0x0000000003450000-0x0000000003548000-memory.dmp

Filesize
992KB

Download
memory/4248-140-0x0000000001200000-0x000000000154A000-memory.dmp

Filesize
3.3MB

Download
memory/4248-141-0x00000000008A0000-0x00000000008B0000-memory.dmp

Filesize
64KB

Download
memory/4248-144-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4248-139-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4516-145-0x0000000000590000-0x000000000059C000-memory.dmp

Filesize
48KB

Download
memory/4516-146-0x0000000002ED0000-0x000000000321A000-memory.dmp

Filesize
3.3MB

Download
memory/4516-147-0x0000000000EC0000-0x0000000000EED000-memory.dmp

Filesize
180KB

Download
memory/4516-148-0x0000000002C00000-0x0000000002C8F000-memory.dmp

Filesize
572KB

Download