56e037704bfbbaa6d2159f40a55e27d7759869be557cb40a46a5ed597a28189f

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 16:51

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General

Target

2024-03-25_f6c48f9c9dc72653d1cbdbc79adfd3eb_cryptolocker.exe
Size

45KB
MD5

f6c48f9c9dc72653d1cbdbc79adfd3eb
SHA1

78390eccebc981ccff83460abc71662eea909834
SHA256

56e037704bfbbaa6d2159f40a55e27d7759869be557cb40a46a5ed597a28189f
SHA512

594cc0e881858de0bcec42245e141891651251d6446e2297637a71fd1dcfe44bfb0058cbe8560908e11e74c0328d781783ccc4832e037b731f6c53accdf042c6
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvy3J8Q:79mqyNhQMOtEvwDpjBzckqJ8Q

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1692-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001224e-11.dat	CryptoLocker_rule2
behavioral1/memory/1692-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2520-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1692-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001224e-11.dat	CryptoLocker_set1
behavioral1/memory/1692-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2520-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2520	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1692	2024-03-25_f6c48f9c9dc72653d1cbdbc79adfd3eb_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1692 wrote to memory of 2520	1692	2024-03-25_f6c48f9c9dc72653d1cbdbc79adfd3eb_cryptolocker.exe	28
PID 1692 wrote to memory of 2520	1692	2024-03-25_f6c48f9c9dc72653d1cbdbc79adfd3eb_cryptolocker.exe	28
PID 1692 wrote to memory of 2520	1692	2024-03-25_f6c48f9c9dc72653d1cbdbc79adfd3eb_cryptolocker.exe	28
PID 1692 wrote to memory of 2520	1692	2024-03-25_f6c48f9c9dc72653d1cbdbc79adfd3eb_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-25_f6c48f9c9dc72653d1cbdbc79adfd3eb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-25_f6c48f9c9dc72653d1cbdbc79adfd3eb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1692
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
45KB

MD5
6fa0529b8de9da3e7501305c03379c80

SHA1
8bd91a0699755e224d00b63ff362da3e33a31009

SHA256
9b7763977b9107fda09760d4c6b0138dcb494195717712eac6c50f439be72501

SHA512
6af46805a532c140ee23bb83e9924c2a89d63013e3a5abd3882251be8d2e9d0f47c46484ec8686d1f6240ff2704284a320c5f20b29e236210c35ee610c36903d

Download Submit
memory/1692-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1692-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1692-2-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/1692-5-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1692-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1692-15-0x0000000000690000-0x000000000069F000-memory.dmp

Filesize
60KB

Download
memory/2520-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2520-20-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2520-19-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download