d27285d6815ad33fdcced5bba6d953d7abb4dadec8cf8fed46a50d34ba0a1713

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
27-03-2024 04:21

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General

Target

2024-03-27_f682f79d6f5a89fa76071dceca445f50_cryptolocker.exe
Size

136KB
MD5

f682f79d6f5a89fa76071dceca445f50
SHA1

7cc2fec2ac3406f0826dd656218ad54a3c38b2b4
SHA256

d27285d6815ad33fdcced5bba6d953d7abb4dadec8cf8fed46a50d34ba0a1713
SHA512

64676dd0e7912e71882c38521a35d8157af948c34d7c94a24980dc6b90bb476dab6e1757c68b328f5e511c06283e3e5edd4ab02d47042fad43a19bdde90902ad
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwNgpwqWsviy6d:u6a++OtEvwDpj6zx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122fa-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122fa-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2556	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1756	2024-03-27_f682f79d6f5a89fa76071dceca445f50_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 1756 wrote to memory of 2556	1756	2024-03-27_f682f79d6f5a89fa76071dceca445f50_cryptolocker.exe	28
PID 1756 wrote to memory of 2556	1756	2024-03-27_f682f79d6f5a89fa76071dceca445f50_cryptolocker.exe	28
PID 1756 wrote to memory of 2556	1756	2024-03-27_f682f79d6f5a89fa76071dceca445f50_cryptolocker.exe	28
PID 1756 wrote to memory of 2556	1756	2024-03-27_f682f79d6f5a89fa76071dceca445f50_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-27_f682f79d6f5a89fa76071dceca445f50_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_f682f79d6f5a89fa76071dceca445f50_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2556

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
136KB

MD5
117d528a36573846779a641cff7761f3

SHA1
efa54251a9a428e5a685ec4e0af2f0428400d522

SHA256
e45cc7688ada497ba8d9ccdac992b274236c13beab3035ebf976a003a3d09bf3

SHA512
2282849cfe7fdcad424e936522349e4b8d415e28595e34bc4afd46935833eb7cbe45e4060ccb8c577505b8611131eb7ffd94111f3db8d902688ba9742c2f4b58

Download Submit
memory/1756-0-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/1756-1-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/1756-2-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/2556-15-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2556-22-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download