68c2b0d44a3787874ad276f9b5f7ddc7df8068312216d91cbe515130cc6c245b

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/06/2024, 05:54

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General

Target

2024-06-06_fabe213df5826f15da33a4d0963c5891_cryptolocker.exe
Size

75KB
MD5

fabe213df5826f15da33a4d0963c5891
SHA1

f517c62bb74434f3e9b1353c65356faa8e842a19
SHA256

68c2b0d44a3787874ad276f9b5f7ddc7df8068312216d91cbe515130cc6c245b
SHA512

b07cf1e408135528efcc5dd714a4b5f924e4ec11e9cfbacf0c77f9c5348c2c4a67ba3732aaf0317677f85d5b7df46c0d78df7ea40878b521d7e1003c0257b658
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalVrH:1nK6a+qdOOtEvwDpjQ

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1712-0-0x0000000000500000-0x000000000050F311-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014e3d-14.dat	CryptoLocker_rule2
behavioral1/memory/1712-15-0x0000000000500000-0x000000000050F311-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2264-16-0x0000000000500000-0x000000000050F311-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2264-26-0x0000000000500000-0x000000000050F311-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1712-0-0x0000000000500000-0x000000000050F311-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000014e3d-14.dat	CryptoLocker_set1
behavioral1/memory/1712-15-0x0000000000500000-0x000000000050F311-memory.dmp	CryptoLocker_set1
behavioral1/memory/2264-16-0x0000000000500000-0x000000000050F311-memory.dmp	CryptoLocker_set1
behavioral1/memory/2264-26-0x0000000000500000-0x000000000050F311-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/1712-0-0x0000000000500000-0x000000000050F311-memory.dmp	UPX
behavioral1/files/0x000b000000014e3d-14.dat	UPX
behavioral1/memory/1712-15-0x0000000000500000-0x000000000050F311-memory.dmp	UPX
behavioral1/memory/2264-16-0x0000000000500000-0x000000000050F311-memory.dmp	UPX
behavioral1/memory/2264-26-0x0000000000500000-0x000000000050F311-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2264	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1712	2024-06-06_fabe213df5826f15da33a4d0963c5891_cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1712-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x000b000000014e3d-14.dat	upx
behavioral1/memory/1712-15-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/2264-16-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/2264-26-0x0000000000500000-0x000000000050F311-memory.dmp	upx

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 1712 wrote to memory of 2264	1712	2024-06-06_fabe213df5826f15da33a4d0963c5891_cryptolocker.exe	28
PID 1712 wrote to memory of 2264	1712	2024-06-06_fabe213df5826f15da33a4d0963c5891_cryptolocker.exe	28
PID 1712 wrote to memory of 2264	1712	2024-06-06_fabe213df5826f15da33a4d0963c5891_cryptolocker.exe	28
PID 1712 wrote to memory of 2264	1712	2024-06-06_fabe213df5826f15da33a4d0963c5891_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-06_fabe213df5826f15da33a4d0963c5891_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-06_fabe213df5826f15da33a4d0963c5891_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2264

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
76KB

MD5
7896db683f2854488000bdd151a448df

SHA1
af8ef7f3dbd44411990108feed92d37dde337cbe

SHA256
88da98aa8da2c589918aa67566ba6e6eaa56b012f25a81b235c2536b82f1174d

SHA512
9425db2ab3b1b37bca1a6a92d9f03065933016143995acece804c5be96a529ae99f10580d775d2762e14e58e8f0006040264146c8549d4907c6e8b339e1513df

Download Submit
memory/1712-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1712-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/1712-2-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/1712-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1712-15-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2264-16-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2264-25-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2264-18-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2264-26-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download