16dce3d765cf4b65cbe9fc6ba05b96b109983b56f7efdab137424989f940fc10

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28/03/2024, 22:38

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General

Target

2024-03-28_9a16bb6e8468c7b7b1cd5c02ac7b1872_cryptolocker.exe
Size

59KB
MD5

9a16bb6e8468c7b7b1cd5c02ac7b1872
SHA1

f0cbd50440b5fa03c58ef547b1df31cd06e424b3
SHA256

16dce3d765cf4b65cbe9fc6ba05b96b109983b56f7efdab137424989f940fc10
SHA512

37b5c45a2d78d5e6d3dfcae90fe2e1247cb136a18860daca9e2569e1479a68b33675d5aee59b4dec234ef836013f613b5fe0c65f563925aad0a98d1166310f34
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8lB4dCOBy/cMFqeoYPO+lxUzh:ZzFbxmLPWQMOtEvwDpj38lD/cMAT+lch

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023199-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	misid.exe
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-28_9a16bb6e8468c7b7b1cd5c02ac7b1872_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2668	misid.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 2668	4936	2024-03-28_9a16bb6e8468c7b7b1cd5c02ac7b1872_cryptolocker.exe	88
PID 4936 wrote to memory of 2668	4936	2024-03-28_9a16bb6e8468c7b7b1cd5c02ac7b1872_cryptolocker.exe	88
PID 4936 wrote to memory of 2668	4936	2024-03-28_9a16bb6e8468c7b7b1cd5c02ac7b1872_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-28_9a16bb6e8468c7b7b1cd5c02ac7b1872_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_9a16bb6e8468c7b7b1cd5c02ac7b1872_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:2668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
59KB

MD5
9485f6bf6f29362c5f98f672bddb6d76

SHA1
4399b3a7c57810240579e315f8fbb4d33fa342a9

SHA256
fbe99affc8424df497cb64891734168d4e0235e92790739aad5016347455a2a5

SHA512
f5f93a2e2343684d22ba1c5323488a5ed003e7dcf3b424790012a1c6b508e9a43b8c53d3aff82bfce179923d25aceac79476c7d72055be444e5208facc3e42c5

Download Submit
memory/2668-16-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/2668-18-0x0000000001F70000-0x0000000001F76000-memory.dmp

Filesize
24KB

Download
memory/2668-23-0x0000000001F40000-0x0000000001F46000-memory.dmp

Filesize
24KB

Download
memory/4936-0-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/4936-2-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/4936-1-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download