969ddca95e4adfa48c3646d88e5365e9ae7ebdebb9bf1191a9adc3414341b3fd

Analysis

max time kernel
151s
max time network
155s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/02/2024, 16:55

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General

Target

2024-02-18_cbf237ec3bd806e64994a72cf3b7d659_cryptolocker.exe
Size

41KB
MD5

cbf237ec3bd806e64994a72cf3b7d659
SHA1

22f3f97f2c4d9193fcde6f7e5cebc30ba8980ae2
SHA256

969ddca95e4adfa48c3646d88e5365e9ae7ebdebb9bf1191a9adc3414341b3fd
SHA512

e7e17a20773bd8eb31f0c3403de0eb805cca677f2caa4ba71c81cf29dba3b398f583f3b228b1fe1445cade45a64cef04c9d35b7d404b38d97cd6af05e16f8d0e
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRqrG:bc/y2lkF0+BjrG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012256-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2904	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2448	2024-02-18_cbf237ec3bd806e64994a72cf3b7d659_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2448	2024-02-18_cbf237ec3bd806e64994a72cf3b7d659_cryptolocker.exe
2904	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 2904	2448	2024-02-18_cbf237ec3bd806e64994a72cf3b7d659_cryptolocker.exe	28
PID 2448 wrote to memory of 2904	2448	2024-02-18_cbf237ec3bd806e64994a72cf3b7d659_cryptolocker.exe	28
PID 2448 wrote to memory of 2904	2448	2024-02-18_cbf237ec3bd806e64994a72cf3b7d659_cryptolocker.exe	28
PID 2448 wrote to memory of 2904	2448	2024-02-18_cbf237ec3bd806e64994a72cf3b7d659_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_cbf237ec3bd806e64994a72cf3b7d659_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_cbf237ec3bd806e64994a72cf3b7d659_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2904

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\rewok.exe

Filesize
41KB

MD5
79eed281e10a96cd09400bc90c756f13

SHA1
14bbae94f0911fde82d06c10ac1ab93520b0c51f

SHA256
9432930616e4694e796f33bdf53a986c1e5134f5110ae503b65fd755c1975ed4

SHA512
a444f26dc02751e362cd96ff359c4362e0e5f77133bba3a03ca69deef5dd9affe197ed760ffd2b322449a9426263bda9c81fe06f7029ed600faec3e7b5018ae7

Download Submit
memory/2448-0-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2448-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2448-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2904-18-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download