db1f558858708ef6bb5d0361d19684926437bb9995c22168aca0d6c8f029b059

General

Target

2024-02-04_a01ad8aef189854014da85ec7962d5de_cryptolocker.exe
Size

39KB
MD5

a01ad8aef189854014da85ec7962d5de
SHA1

1a10ad75ea3c0c3e5d5873445679d4eeca7bee96
SHA256

db1f558858708ef6bb5d0361d19684926437bb9995c22168aca0d6c8f029b059
SHA512

4ed7cb97546db1a3d3c62ddf7cc98acc6794ffe17a539e2f814758933646516a4f3814743e91abf436d5036aa11e6a5bc7b9bb8c6293c737c4163cff745ecc16
SSDEEP

384:60VkMq01bJ3wtEwPS8HLEh+Jagz+3be+26aIIcVRYpetOOtEvwDpjqIGRmdHzOOK:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/c

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/2652-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012243-15.dat	CryptoLocker_rule2
behavioral1/memory/2332-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2652-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2652-12-0x00000000025C0000-0x00000000025CF000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2332-92-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 6 IoCs

resource	yara_rule
behavioral1/memory/2652-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000012243-15.dat	CryptoLocker_set1
behavioral1/memory/2332-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2652-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2652-12-0x00000000025C0000-0x00000000025CF000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2332-92-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 6 IoCs

resource	yara_rule
behavioral1/memory/2652-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000a000000012243-15.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2332-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2652-16-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2652-12-0x00000000025C0000-0x00000000025CF000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2332-92-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2332	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2652	2024-02-04_a01ad8aef189854014da85ec7962d5de_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 2652 wrote to memory of 2332	2652	2024-02-04_a01ad8aef189854014da85ec7962d5de_cryptolocker.exe	18
PID 2652 wrote to memory of 2332	2652	2024-02-04_a01ad8aef189854014da85ec7962d5de_cryptolocker.exe	18
PID 2652 wrote to memory of 2332	2652	2024-02-04_a01ad8aef189854014da85ec7962d5de_cryptolocker.exe	18
PID 2652 wrote to memory of 2332	2652	2024-02-04_a01ad8aef189854014da85ec7962d5de_cryptolocker.exe	18

C:\Users\Admin\AppData\Local\Temp\2024-02-04_a01ad8aef189854014da85ec7962d5de_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-04_a01ad8aef189854014da85ec7962d5de_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2332

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab3AC1.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar3B03.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit
C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
39KB

MD5
d43847283cc55623264ae7125804086f

SHA1
512ff584816ea18befe6f8a4f7662bd84425b6b2

SHA256
daf0be17f445a97636b39b697e564d93a3577d8feed41989b4fb7cef65f05195

SHA512
647cb2b793d170a491228bfe8c6714e12054da00841befe84d5b52dc4804bb2541165f61dca1c41710b84f75ed401342cc86954afe366d89b63a26370cb36531

Download Submit
memory/2332-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2332-92-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2332-26-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2332-19-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2652-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2652-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2652-12-0x00000000025C0000-0x00000000025CF000-memory.dmp

Filesize
60KB

Download
memory/2652-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2652-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2652-4-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download

Analysis

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