612e64a903c06462fabdf92898b38607f5f1fa5db7acfd2acb8854429baf18ad

Analysis

max time kernel
131s
max time network
138s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/04/2024, 05:50

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General

Target

2024-04-28_f40a8e0c9f12e5c5f4af8914c014a710_cryptolocker.exe
Size

45KB
MD5

f40a8e0c9f12e5c5f4af8914c014a710
SHA1

9a4d2ac3040722e2c6901b3e46eccb173e487825
SHA256

612e64a903c06462fabdf92898b38607f5f1fa5db7acfd2acb8854429baf18ad
SHA512

d085b0068c67c49f07d8c0381014adf37b3eadab1f4f630dc03f166e28b523c700ebb84d2c17d858936d1b18c7324dd5dead6e360f34cacfd441fe91ab5848a4
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPH:P6QFElP6k+MRQMOtEvwDpjBQpVXC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2352-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014230-11.dat	CryptoLocker_rule2
behavioral1/memory/2352-13-0x0000000001D00000-0x0000000001D0B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2352-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2056-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2352-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000014230-11.dat	CryptoLocker_set1
behavioral1/memory/2352-13-0x0000000001D00000-0x0000000001D0B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2352-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2056-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2056	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2352	2024-04-28_f40a8e0c9f12e5c5f4af8914c014a710_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 2352 wrote to memory of 2056	2352	2024-04-28_f40a8e0c9f12e5c5f4af8914c014a710_cryptolocker.exe	28
PID 2352 wrote to memory of 2056	2352	2024-04-28_f40a8e0c9f12e5c5f4af8914c014a710_cryptolocker.exe	28
PID 2352 wrote to memory of 2056	2352	2024-04-28_f40a8e0c9f12e5c5f4af8914c014a710_cryptolocker.exe	28
PID 2352 wrote to memory of 2056	2352	2024-04-28_f40a8e0c9f12e5c5f4af8914c014a710_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-28_f40a8e0c9f12e5c5f4af8914c014a710_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_f40a8e0c9f12e5c5f4af8914c014a710_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2056

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
e48d95ee5a4bd9fd36ffcb84208d65a7

SHA1
a8ca82c2bf48cb6867021b0051c7f92dad5b3f05

SHA256
c0390c86897e2c9393c89ffbe855712b73fe50b6777b22cf3e865f762fb09425

SHA512
4f5c4d990cbc2d18f75312427e792444aee8a276e839d964ad784931ad251a882036f3c27baf4c9703ce0469e45ca1299293e70da64bc73700a76aa93d162601

Download Submit
memory/2056-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2056-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2056-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2352-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2352-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2352-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2352-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2352-13-0x0000000001D00000-0x0000000001D0B000-memory.dmp

Filesize
44KB

Download
memory/2352-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download