20a873031246d55e4446d301610d46dd807c14a7b861ff54ee5490a2d7834035

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03/06/2024, 00:48

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General

Target

2024-06-03_bb92e667d1b0229521edd32616c644bd_cryptolocker.exe
Size

87KB
MD5

bb92e667d1b0229521edd32616c644bd
SHA1

2cae2e0e524c9256aa2b0cf5aeacaea34c32afe3
SHA256

20a873031246d55e4446d301610d46dd807c14a7b861ff54ee5490a2d7834035
SHA512

0539a2b0f817af85afe936f289e5478166795666aef28374cf33da089b80f659899689efc9d5aa364167f1e5b3cb56905b4256fb48590560dc9ebd1a48ec41c6
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHNBND:vCjsIOtEvwDpj5H9YvQd2R

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001441e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001441e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2252	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1968	2024-06-03_bb92e667d1b0229521edd32616c644bd_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 1968 wrote to memory of 2252	1968	2024-06-03_bb92e667d1b0229521edd32616c644bd_cryptolocker.exe	28
PID 1968 wrote to memory of 2252	1968	2024-06-03_bb92e667d1b0229521edd32616c644bd_cryptolocker.exe	28
PID 1968 wrote to memory of 2252	1968	2024-06-03_bb92e667d1b0229521edd32616c644bd_cryptolocker.exe	28
PID 1968 wrote to memory of 2252	1968	2024-06-03_bb92e667d1b0229521edd32616c644bd_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-03_bb92e667d1b0229521edd32616c644bd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_bb92e667d1b0229521edd32616c644bd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2252

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\misid.exe

Filesize
87KB

MD5
6616b4d559b2f00154512e7f2a064d83

SHA1
e94e3b9ff41bfa412822016ef0c64fc5fb82ca90

SHA256
73950244ff8b64b3f46416d3f795442f828703eeb984c6684bc337e4bb81417f

SHA512
70e136d28d9ffb99c3986ee4c9211583c0e5ffe9a4fed262bc6f27f3f77f7f303cb8ff1d525f7f434d36692474396cae7b928ddb6bf4d55b1a39e1131635a8b1

Download Submit
memory/1968-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1968-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1968-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2252-22-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2252-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download