bfa567dfaf2266786510bf68d27728f153de0533f38cbbf00643779cf499d68e

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
25/04/2024, 13:08

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General

Target

2024-04-25_c9c85a1e3bb6d913e693aa9097b708c6_cryptolocker.exe
Size

49KB
MD5

c9c85a1e3bb6d913e693aa9097b708c6
SHA1

f7fb0c424865dc7658147e2f251140dd4ff8bc74
SHA256

bfa567dfaf2266786510bf68d27728f153de0533f38cbbf00643779cf499d68e
SHA512

fac969dff0a0821b92ad64a79713df8a25514904fbdbb0457ee8b75e1e66be99e0e1c23e6ef1fa67878e20a7251fe60642ca7bb13c659c7b15e93ed4986ba4d4
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ15x8p:ZVxkGOtEvwDpjcd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97c-13.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	2024-04-25_c9c85a1e3bb6d913e693aa9097b708c6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2884	misid.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1316 wrote to memory of 2884	1316	2024-04-25_c9c85a1e3bb6d913e693aa9097b708c6_cryptolocker.exe	89
PID 1316 wrote to memory of 2884	1316	2024-04-25_c9c85a1e3bb6d913e693aa9097b708c6_cryptolocker.exe	89
PID 1316 wrote to memory of 2884	1316	2024-04-25_c9c85a1e3bb6d913e693aa9097b708c6_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-04-25_c9c85a1e3bb6d913e693aa9097b708c6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_c9c85a1e3bb6d913e693aa9097b708c6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1316
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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\misid.exe

Filesize
49KB

MD5
fc83f399e0158ba45331695bc1c1c49c

SHA1
529a60e872652690917aed36183f5140700857f2

SHA256
513b854300003bfba83a0116be3700123fdf9736a053bc9bd744731debbe9cd4

SHA512
1f8d6d9a85dad1ba03a252a22e78bf2bbb0dc9b2be406565dc17361d8858b6c8c4044a7a6e55b2e58606ff36b645a93a6cb2cc7ee4d41ca68f21d8fa5bf914bd

Download Submit
memory/1316-0-0x00000000004A0000-0x00000000004A3000-memory.dmp

Filesize
12KB

Download
memory/1316-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1316-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1316-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1316-17-0x00000000004A0000-0x00000000004A3000-memory.dmp

Filesize
12KB

Download
memory/2884-19-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/2884-21-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download