42e6957fb507cc012fd5d47e85e9cf65714a3fe106594773a4fb3ece54566a5f

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/04/2024, 05:30

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General

Target

2024-04-15_110a691b91f80ac4c6847f5f0281f1fd_cryptolocker.exe
Size

44KB
MD5

110a691b91f80ac4c6847f5f0281f1fd
SHA1

16eba8dbf03231fcff79c5a633c80c90486d8f3e
SHA256

42e6957fb507cc012fd5d47e85e9cf65714a3fe106594773a4fb3ece54566a5f
SHA512

de88a642674ffb00d59dfbaaa03c974ae9e2b4d844e947b28cb6cfe3fde2a2aad5d99a01f4304cc23e0dc12aa8cf5650f24ffb2fa87fa51e6b5c82d11a038b41
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPw:P6QFElP6k+MRQMOtEvwDpjBQpVXB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1752-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1752-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012251-11.dat	CryptoLocker_rule2
behavioral1/memory/1204-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1204-28-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1752-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1752-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012251-11.dat	CryptoLocker_set1
behavioral1/memory/1204-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1204-28-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1204	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1752	2024-04-15_110a691b91f80ac4c6847f5f0281f1fd_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 1752 wrote to memory of 1204	1752	2024-04-15_110a691b91f80ac4c6847f5f0281f1fd_cryptolocker.exe	28
PID 1752 wrote to memory of 1204	1752	2024-04-15_110a691b91f80ac4c6847f5f0281f1fd_cryptolocker.exe	28
PID 1752 wrote to memory of 1204	1752	2024-04-15_110a691b91f80ac4c6847f5f0281f1fd_cryptolocker.exe	28
PID 1752 wrote to memory of 1204	1752	2024-04-15_110a691b91f80ac4c6847f5f0281f1fd_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-15_110a691b91f80ac4c6847f5f0281f1fd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_110a691b91f80ac4c6847f5f0281f1fd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1204

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
44KB

MD5
9d561afef83992e9260dc8be4b148c2a

SHA1
54b389347d721e29762c9e026732d8c130ffcc5c

SHA256
9a3b7a81cdfc265205d90da37f7894e86ecb1e0391844ad91974acfd9edab08e

SHA512
7c5c9feb33d8314b9f6d5194445f64cb8bbd4bfe47df95ec76059bc7e24c018e7cdbc6b670d6eb41ee20a57ba0e719b3835d77c33a8f812a74383772458c4942

Download Submit
memory/1204-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1204-20-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1204-19-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1204-28-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1752-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1752-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1752-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1752-4-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1752-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1752-13-0x0000000001E70000-0x0000000001E7B000-memory.dmp

Filesize
44KB

Download
memory/1752-27-0x0000000001E70000-0x0000000001E7B000-memory.dmp

Filesize
44KB

Download