d1927d91edc596628e182cb965981d32e8b7b5d3ead33fd1fe47106482a1f047

Analysis

max time kernel
147s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06-03-2024 11:25

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General

Target

2024-03-06_08ee9058c75a4dc615a0c9477e0ecaf1_cryptolocker.exe
Size

41KB
MD5

08ee9058c75a4dc615a0c9477e0ecaf1
SHA1

7f71379ccb5bc5ea984ee82e81799b345a87eb29
SHA256

d1927d91edc596628e182cb965981d32e8b7b5d3ead33fd1fe47106482a1f047
SHA512

6307f05573319265edf28e318b2fd386e6e8675f607940b80aab3f975fe7ffc39ddd96f5fb84b93f317a852bd2cba3145462b8bc33aa80930a311f4b63167cd0
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQL3bTyz:ZzFbxmLPWQMOtEvwDpjLeU3k

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000231fa-13.dat	CryptoLocker_rule2

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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-03-06_08ee9058c75a4dc615a0c9477e0ecaf1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4496	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 3948 wrote to memory of 4496	3948	2024-03-06_08ee9058c75a4dc615a0c9477e0ecaf1_cryptolocker.exe	93
PID 3948 wrote to memory of 4496	3948	2024-03-06_08ee9058c75a4dc615a0c9477e0ecaf1_cryptolocker.exe	93
PID 3948 wrote to memory of 4496	3948	2024-03-06_08ee9058c75a4dc615a0c9477e0ecaf1_cryptolocker.exe	93

C:\Users\Admin\AppData\Local\Temp\2024-03-06_08ee9058c75a4dc615a0c9477e0ecaf1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_08ee9058c75a4dc615a0c9477e0ecaf1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3948
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4496

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
41KB

MD5
47939eaf28293a9facb864711ea63483

SHA1
c1e17b8b21f991db78cf3c50bc85e89cbdd89436

SHA256
4a792f83279e4b89483e22d9974817d888f4a05425c47ef41b8cd132e90bb7d3

SHA512
9ddf55bd3663352756056109a271301c182251d6a0ed9bb499d55cdc6386cffe9835c1b49589260ec9abc4f4ba182ba6205bbf0cc87726d6eaac3e33d7037b93

Download Submit
memory/3948-0-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/3948-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/3948-2-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/3948-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/3948-17-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/4496-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4496-20-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4496-22-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download