4ac155fccc0dfb1c73b1ca285b0d99ff5d16b8dfd72f6c378b4431164d0a10a1

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
04/06/2024, 04:42

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General

Target

2024-06-04_691a3407bfb954dda57116fb249e6d55_cryptolocker.exe
Size

46KB
MD5

691a3407bfb954dda57116fb249e6d55
SHA1

1c72e28eb7f837f5529d911e3162218b1ed40089
SHA256

4ac155fccc0dfb1c73b1ca285b0d99ff5d16b8dfd72f6c378b4431164d0a10a1
SHA512

edd21e6bd6eb4af2ad7e502ccbbc78d1e6f2d14cf17d8c8abf1e521cb84bd2ad67dda382bba7f76b19970b4fe87258b308b59329b6ab1e276b11f4cd1d1c8a8d
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPO:P6QFElP6k+MRQMOtEvwDpjBQpVXL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1632-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000015f7a-11.dat	CryptoLocker_rule2
behavioral1/memory/1632-15-0x0000000002270000-0x000000000227B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1632-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2748-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1632-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000015f7a-11.dat	CryptoLocker_set1
behavioral1/memory/1632-15-0x0000000002270000-0x000000000227B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1632-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2748-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2748	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1632	2024-06-04_691a3407bfb954dda57116fb249e6d55_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 1632 wrote to memory of 2748	1632	2024-06-04_691a3407bfb954dda57116fb249e6d55_cryptolocker.exe	28
PID 1632 wrote to memory of 2748	1632	2024-06-04_691a3407bfb954dda57116fb249e6d55_cryptolocker.exe	28
PID 1632 wrote to memory of 2748	1632	2024-06-04_691a3407bfb954dda57116fb249e6d55_cryptolocker.exe	28
PID 1632 wrote to memory of 2748	1632	2024-06-04_691a3407bfb954dda57116fb249e6d55_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-04_691a3407bfb954dda57116fb249e6d55_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-04_691a3407bfb954dda57116fb249e6d55_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2748

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
46KB

MD5
70c56a364825cb669eb75fbb50b92bec

SHA1
111dff09d72ba1108760cd88963f2bf89051d4a5

SHA256
fd420f6dff95734864f0c4ffa220eb3c73678b4de2defe214e1e71d9984f6e42

SHA512
b92ecda09561d1baa82acfe9dc03295a4a6d104b36683fea768f938a3f864140040d56e3bfe7d80bf1a0642432e65a7a76d7f1d10d0c25c8a70366e0d9163725

Download Submit
memory/1632-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1632-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1632-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1632-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1632-15-0x0000000002270000-0x000000000227B000-memory.dmp

Filesize
44KB

Download
memory/1632-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2748-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2748-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2748-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download