1fe345523844b6411d55490fa43c4823cba779390f7c071393ff16ef6489a899

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13-02-2024 19:33

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General

Target

2024-02-13_61b401c0e978cb8eb463bb20febd3f88_cryptolocker.exe
Size

64KB
MD5

61b401c0e978cb8eb463bb20febd3f88
SHA1

a490bc2c5ba7152a7f037538c5a8441a2d4b20dc
SHA256

1fe345523844b6411d55490fa43c4823cba779390f7c071393ff16ef6489a899
SHA512

086fece0318853a824e82fd816af2f273851716e0b0a79a2925208f6fe573fc68609fd59f90118fbe57260aed339f453ba9f9dfee5bc4db8f3de8127aea10c6e
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3hvLcbVaG:ZVxkGOtEvwDpjcawB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 2 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012262-11.dat	CryptoLocker_rule2
behavioral1/memory/1132-25-0x00000000001C0000-0x00000000001C6000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1132	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1164	2024-02-13_61b401c0e978cb8eb463bb20febd3f88_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 1164 wrote to memory of 1132	1164	2024-02-13_61b401c0e978cb8eb463bb20febd3f88_cryptolocker.exe	28
PID 1164 wrote to memory of 1132	1164	2024-02-13_61b401c0e978cb8eb463bb20febd3f88_cryptolocker.exe	28
PID 1164 wrote to memory of 1132	1164	2024-02-13_61b401c0e978cb8eb463bb20febd3f88_cryptolocker.exe	28
PID 1164 wrote to memory of 1132	1164	2024-02-13_61b401c0e978cb8eb463bb20febd3f88_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-13_61b401c0e978cb8eb463bb20febd3f88_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_61b401c0e978cb8eb463bb20febd3f88_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1164
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1132

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
64KB

MD5
fccf05de7b29b92095f48b3108875427

SHA1
5c2c528854d56a9281ff113495276c3a498d0be8

SHA256
c59a2beb86e57a227a9203eac616409db26757699c6234888e75044e28b31775

SHA512
1c8a22e95093cf8d1d0793d8c46709e86fd37cf4113a0a52f42daec3ad9a189d2b66a6d8b1b7ccf0252409813bd9edbc98baad02bed9ec64aec0a7edb920a266

Download Submit
memory/1132-16-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1132-17-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1132-18-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1132-25-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1164-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1164-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1164-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1164-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download