33be54f2e4562c6e588fa7efcc8ddcb96b59d23ba115ea1b0eb7e76d4958125f

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/04/2024, 18:23

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General

Target

2024-04-23_2f62b501cf5fa21ad22ccdfe6f1fa59f_cryptolocker.exe
Size

75KB
MD5

2f62b501cf5fa21ad22ccdfe6f1fa59f
SHA1

38b632d164cabb623f054eaa657d7938347b638e
SHA256

33be54f2e4562c6e588fa7efcc8ddcb96b59d23ba115ea1b0eb7e76d4958125f
SHA512

30ccd4878171ccbc8a86ef7f6745d034d1021b0cee9bf7ce9dc1602ce5893f3c6a884b829d568909bf231d83e4afe081dd120e3208c7a3e97391b80f2e99e080
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1siA:X6a+SOtEvwDpjBZYvQd2m

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001222a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001222a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2972	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1308	2024-04-23_2f62b501cf5fa21ad22ccdfe6f1fa59f_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 1308 wrote to memory of 2972	1308	2024-04-23_2f62b501cf5fa21ad22ccdfe6f1fa59f_cryptolocker.exe	28
PID 1308 wrote to memory of 2972	1308	2024-04-23_2f62b501cf5fa21ad22ccdfe6f1fa59f_cryptolocker.exe	28
PID 1308 wrote to memory of 2972	1308	2024-04-23_2f62b501cf5fa21ad22ccdfe6f1fa59f_cryptolocker.exe	28
PID 1308 wrote to memory of 2972	1308	2024-04-23_2f62b501cf5fa21ad22ccdfe6f1fa59f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-23_2f62b501cf5fa21ad22ccdfe6f1fa59f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_2f62b501cf5fa21ad22ccdfe6f1fa59f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1308
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2972

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
75KB

MD5
599592aec4712de172b62401ba1ee7b3

SHA1
339555978ee353dab9e3bdeb9c8d4eeb260f034c

SHA256
254c4a2be2da71d0ae184d35cf2f8d79c3621d25b6e47a9016a9a8a7129c5813

SHA512
1d7cdeea9ed6645881827dfbfb08a3f0f7b12128cebcfe1a56bb8c54fbfb547e64a13d6ea3cdde12f0a8200b6fdd0fa5388287dbd9780b7353edcee38ab298de

Download Submit
memory/1308-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1308-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1308-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2972-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2972-16-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download