7ebdafa676ee8ce095efc18318e906dbe3d5969192987c76133ad27081ccb9e6

Analysis

max time kernel
157s
max time network
176s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12/03/2024, 22:44

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General

Target

2024-03-12_5569e7a13c0d2131ee85c27d86441f5e_cryptolocker.exe
Size

52KB
MD5

5569e7a13c0d2131ee85c27d86441f5e
SHA1

c72645a063c92d089a2f5321239b19de91368ee8
SHA256

7ebdafa676ee8ce095efc18318e906dbe3d5969192987c76133ad27081ccb9e6
SHA512

785692bbf7002e9f2aad8d277786f790e961b6ab9d9e35b2c32ec00be2d9c16111253ed8c54418c256dc6e0410b7cbb5fb53e4feb51172f1376c01f3467fbf61
SSDEEP

1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb6Impyq:BbdDmjr+OtEvwDpjM1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2268-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001467f-11.dat	CryptoLocker_rule2
behavioral1/memory/2268-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2616-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2616-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2268-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2616-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2616-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/2268-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x000b00000001467f-11.dat	UPX
behavioral1/memory/2268-15-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2616-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2616-26-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2616	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2268	2024-03-12_5569e7a13c0d2131ee85c27d86441f5e_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 2268 wrote to memory of 2616	2268	2024-03-12_5569e7a13c0d2131ee85c27d86441f5e_cryptolocker.exe	27
PID 2268 wrote to memory of 2616	2268	2024-03-12_5569e7a13c0d2131ee85c27d86441f5e_cryptolocker.exe	27
PID 2268 wrote to memory of 2616	2268	2024-03-12_5569e7a13c0d2131ee85c27d86441f5e_cryptolocker.exe	27
PID 2268 wrote to memory of 2616	2268	2024-03-12_5569e7a13c0d2131ee85c27d86441f5e_cryptolocker.exe	27

C:\Users\Admin\AppData\Local\Temp\2024-03-12_5569e7a13c0d2131ee85c27d86441f5e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_5569e7a13c0d2131ee85c27d86441f5e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2616

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
52KB

MD5
7e9408db63f48a3e4e1478d33fc52b62

SHA1
a2cd5f651a4ff0376b8692f8a3e22d0e39d06b73

SHA256
dc2da0653707aaad5b2c9da8623f1ceadb4c33545e28a6dc74e60d86080546a6

SHA512
c4fdd5c4488a0b8d962182063e17d4aed57878615077b4397d5de2b27e2d7203acb320770f10c3672a96621073f2ec13cf449f04f3ec5e2967fc0eb85c8adfa7

Download Submit
memory/2268-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2268-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2268-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2268-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2268-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2268-14-0x0000000001D90000-0x0000000001DA0000-memory.dmp

Filesize
64KB

Download
memory/2616-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2616-19-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2616-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download