daef3597e1bee5342c560c3d521a44c3d76bab916ec1767275cc1953efda0870

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
07/06/2024, 00:36

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General

Target

2024-06-07_b32a6a925b103dc4a0fb118395345d75_cryptolocker.exe
Size

71KB
MD5

b32a6a925b103dc4a0fb118395345d75
SHA1

95d4b1a6c575f537ae9cfd6550b75b60372455b4
SHA256

daef3597e1bee5342c560c3d521a44c3d76bab916ec1767275cc1953efda0870
SHA512

ef1ff0f82312d9d7fc63e22c2e2b367a2bf290adeb3a464792d06110d8fbed2c873af004651e4715949d65dc05744ddece1592feb76586a314f36e50e6c91664
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZO4:DW60sllyWOtEvwDpjwF85P

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/1896-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001226d-11.dat	CryptoLocker_rule2
behavioral1/memory/2484-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/1896-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001226d-11.dat	CryptoLocker_set1
behavioral1/memory/2484-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2484	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1896	2024-06-07_b32a6a925b103dc4a0fb118395345d75_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 1896 wrote to memory of 2484	1896	2024-06-07_b32a6a925b103dc4a0fb118395345d75_cryptolocker.exe	28
PID 1896 wrote to memory of 2484	1896	2024-06-07_b32a6a925b103dc4a0fb118395345d75_cryptolocker.exe	28
PID 1896 wrote to memory of 2484	1896	2024-06-07_b32a6a925b103dc4a0fb118395345d75_cryptolocker.exe	28
PID 1896 wrote to memory of 2484	1896	2024-06-07_b32a6a925b103dc4a0fb118395345d75_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-07_b32a6a925b103dc4a0fb118395345d75_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-07_b32a6a925b103dc4a0fb118395345d75_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1896
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2484

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
71KB

MD5
c26a05c5b97b09511e3a694ba4685e3f

SHA1
d04f19f53e20ecbe703f0716111d643dc9551b02

SHA256
e5d25a7c97f28ec3f28374040e28507161214dddf114d64a5b9adfea7e7b66cb

SHA512
34efa8177ac58280d9ca90472d8afc37a9fa77b029b4d205ae381c8bf151d6045459473c46a4968dacdbe4ec5345c81727245ef99a54c136fbed98a29fa5f771

Download Submit
memory/1896-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1896-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1896-9-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1896-8-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2484-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2484-17-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/2484-24-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download