805aa49b2408090b7d2252dea766b0100efcabc45d45d18ad81533eb8c98d14b

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
27/06/2024, 10:25

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General

Target

2024-06-27_3198eaeec4fe00620a22e3dd076f243a_cryptolocker.exe
Size

46KB
MD5

3198eaeec4fe00620a22e3dd076f243a
SHA1

f5dcfbc2f01e65578c8cf57351ebd0a70376949b
SHA256

805aa49b2408090b7d2252dea766b0100efcabc45d45d18ad81533eb8c98d14b
SHA512

e1c8986f357dd5ea5c1f77ce5861f7b9402f001944ef923adb1707166ab0b8ff13c281ef73d2c2a56ad422ba07cb69621a5d8f302da35b204535a519944d1129
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUadQC8w:bm74zYcgT/EkM0ryfjPdQZw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1760-0-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c0000000122ee-11.dat	CryptoLocker_rule2
behavioral1/memory/1760-15-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2616-25-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2616	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1760	2024-06-27_3198eaeec4fe00620a22e3dd076f243a_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 1760 wrote to memory of 2616	1760	2024-06-27_3198eaeec4fe00620a22e3dd076f243a_cryptolocker.exe	28
PID 1760 wrote to memory of 2616	1760	2024-06-27_3198eaeec4fe00620a22e3dd076f243a_cryptolocker.exe	28
PID 1760 wrote to memory of 2616	1760	2024-06-27_3198eaeec4fe00620a22e3dd076f243a_cryptolocker.exe	28
PID 1760 wrote to memory of 2616	1760	2024-06-27_3198eaeec4fe00620a22e3dd076f243a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-27_3198eaeec4fe00620a22e3dd076f243a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-27_3198eaeec4fe00620a22e3dd076f243a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1760
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2616

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\hasfj.exe

Filesize
46KB

MD5
fecb99ef223e196051509f3524a0e7b7

SHA1
32e9f7d209b971ced7fac245cdfd489af04395c9

SHA256
ebb3e6d0c5607a5d265c1b6da7f078c58bb08c8ef6be2a4f7056b730797cd7c5

SHA512
c91fb2b6be9a99295b4aceba7a54f11dbfd9102129241a3b9f6c46eed31a1cddc34ceb13448addc62dca37ebdf596f1b2514eb46e9401572d6f27558f479cd03

Download Submit
memory/1760-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/1760-2-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/1760-9-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/1760-1-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/1760-15-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2616-17-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2616-24-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2616-25-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download