a2e50b25ffd9d8bfea5df9be9407eafffc89bd797acd334e7346a965f141a410

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
26/05/2024, 04:26

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General

Target

2024-05-26_6729a0e2d812fdf35d618e89c285348d_cryptolocker.exe
Size

45KB
MD5

6729a0e2d812fdf35d618e89c285348d
SHA1

03b13451f778777d9a581d21077d2960095b2ca6
SHA256

a2e50b25ffd9d8bfea5df9be9407eafffc89bd797acd334e7346a965f141a410
SHA512

dcb31ed55e06037c6d5f1f0a141aa95c4b3978516131c3f401fdf5333177592b4d6b2059e60a69ea0300625e9658f0ceaa7e9cfac04b1a5edcdc80c37a06e151
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPT:P6QFElP6k+MRQMOtEvwDpjBQpVX+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/1516-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012271-11.dat	CryptoLocker_rule2
behavioral1/memory/1516-12-0x0000000001E10000-0x0000000001E1B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2676-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1516-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2676-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 6 IoCs

resource	yara_rule
behavioral1/memory/1516-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012271-11.dat	CryptoLocker_set1
behavioral1/memory/1516-12-0x0000000001E10000-0x0000000001E1B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2676-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1516-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2676-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2676	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1516	2024-05-26_6729a0e2d812fdf35d618e89c285348d_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 1516 wrote to memory of 2676	1516	2024-05-26_6729a0e2d812fdf35d618e89c285348d_cryptolocker.exe	28
PID 1516 wrote to memory of 2676	1516	2024-05-26_6729a0e2d812fdf35d618e89c285348d_cryptolocker.exe	28
PID 1516 wrote to memory of 2676	1516	2024-05-26_6729a0e2d812fdf35d618e89c285348d_cryptolocker.exe	28
PID 1516 wrote to memory of 2676	1516	2024-05-26_6729a0e2d812fdf35d618e89c285348d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-26_6729a0e2d812fdf35d618e89c285348d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_6729a0e2d812fdf35d618e89c285348d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1516
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2676

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
7af22f2822f5eba84541093ffdd6956f

SHA1
4c8aae2c220e9bc420edeacdba67975e08c42ca8

SHA256
89dec282ec75e7fd6e1f5aea8f9ddf5ec57fec030440e123ef7a58e21bc34624

SHA512
32fcb576c38899e132698555f07c8a70469d48207083725f1dce425f69c773ce476ef7f3bc609ee72bc32dd72a0242c951f8ef17db4c7334d84058782b9b8496

Download Submit
memory/1516-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1516-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1516-2-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/1516-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1516-12-0x0000000001E10000-0x0000000001E1B000-memory.dmp

Filesize
44KB

Download
memory/1516-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2676-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2676-19-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2676-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download