1159c8afdc59951ac15c79c4784d270cab54af563aebb9eeaf5e12915c76d0db

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28/02/2024, 17:23

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General

Target

2024-02-28_6cfaf40a23ca9e43230efce139a13772_cryptolocker.exe
Size

49KB
MD5

6cfaf40a23ca9e43230efce139a13772
SHA1

b69fbba2c49b876a81741e43126a723db37b73e7
SHA256

1159c8afdc59951ac15c79c4784d270cab54af563aebb9eeaf5e12915c76d0db
SHA512

c3ab1d74830e8a9cf1df9473ad2e07a5adff3c6810cc21dd21b7458ba373af2481a282fa8937e79a824505d2f0bb94b1a1d25cb02cbcbf858807e68c9f838fb9
SSDEEP

768:XS5nQJ24LR1bytOOtEvwDpjNbP/0GeUMxI:i5nkFGMOtEvwDpjNbXdeUd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/376-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0007000000023222-13.dat	CryptoLocker_rule2
behavioral2/memory/376-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3160-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3160-53-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral2/memory/376-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3160-53-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/376-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x0007000000023222-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/376-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3160-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3160-53-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-02-28_6cfaf40a23ca9e43230efce139a13772_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
3160	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 376 wrote to memory of 3160	376	2024-02-28_6cfaf40a23ca9e43230efce139a13772_cryptolocker.exe	90
PID 376 wrote to memory of 3160	376	2024-02-28_6cfaf40a23ca9e43230efce139a13772_cryptolocker.exe	90
PID 376 wrote to memory of 3160	376	2024-02-28_6cfaf40a23ca9e43230efce139a13772_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-02-28_6cfaf40a23ca9e43230efce139a13772_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_6cfaf40a23ca9e43230efce139a13772_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:376
- 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:3160

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
49KB

MD5
581a2994d6898b133c2ca7b0339f7ac5

SHA1
85c9ea27e8f51e4687d04a4875d1e628d82b2b66

SHA256
d29cb5c2728bc3bec6b9a927e950578c994ae9a071ce574c6e8e44128c09090e

SHA512
c5936fbb80d0ef9231a89e828b37189ffe3a81f7a18891a8e931cdcf918df83abb16cbdfd2c58dcf6898224e3e2a3dac5deacbcf03e44b28071ed068ed7610c4

Download Submit
memory/376-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/376-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/376-2-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/376-3-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/376-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3160-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3160-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3160-21-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3160-53-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download