16e27e201640493ec05bd1ba2ef5f9a892adaa2edf31035dc06b4bfc134a1457

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/04/2024, 03:23

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General

Target

2024-04-25_0305c0d1f0f6e5ed7cb668904fc807f1_cryptolocker.exe
Size

93KB
MD5

0305c0d1f0f6e5ed7cb668904fc807f1
SHA1

6790b38449cdb53fe365dcd6245414731dde4012
SHA256

16e27e201640493ec05bd1ba2ef5f9a892adaa2edf31035dc06b4bfc134a1457
SHA512

846520f85b1dca48c1e8a3b39c060a10d127792ce067793deb45b7a84867403c66623a5ae76d910716221602501db4b18969ef12297031ee852a701bcf3f02a9
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgNG:V6a+pOtEvwDpjtz0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012257-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012257-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2504	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1220	2024-04-25_0305c0d1f0f6e5ed7cb668904fc807f1_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 1220 wrote to memory of 2504	1220	2024-04-25_0305c0d1f0f6e5ed7cb668904fc807f1_cryptolocker.exe	28
PID 1220 wrote to memory of 2504	1220	2024-04-25_0305c0d1f0f6e5ed7cb668904fc807f1_cryptolocker.exe	28
PID 1220 wrote to memory of 2504	1220	2024-04-25_0305c0d1f0f6e5ed7cb668904fc807f1_cryptolocker.exe	28
PID 1220 wrote to memory of 2504	1220	2024-04-25_0305c0d1f0f6e5ed7cb668904fc807f1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-25_0305c0d1f0f6e5ed7cb668904fc807f1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_0305c0d1f0f6e5ed7cb668904fc807f1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1220
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2504

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
93KB

MD5
1c3c9a8618dcc4b6a48b95e30bfa5f7b

SHA1
cc768f57c22a9d2c1e0437f1396722ef9826d320

SHA256
39460650bb33f408e30c46965eb42c0cb938261803d214b96a804123d0d09749

SHA512
d15127f02aaea50cb8333a7eaa69efcf391047da4bc146974f0c7ab15f1bdfbb71da405b75e71da7cf0ea1d3a8586805e6df4d6e1475805094cc6aa6bca06b22

Download Submit
memory/1220-0-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/1220-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/1220-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2504-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2504-17-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download