f2d88ca19f612ca4d1650d68b670d9859ef9ea142493505c09e5a7a296f1eab0

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16/04/2024, 05:12

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General

Target

2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe
Size

42KB
MD5

c12ac62c4900b91271a374254574f1c5
SHA1

b488b14a5974da475e251d4368f75ba3db79be2f
SHA256

f2d88ca19f612ca4d1650d68b670d9859ef9ea142493505c09e5a7a296f1eab0
SHA512

a704a292ee9d44df2f241a06c0501e930fd5179b7079389a53eaf4648b947569f030735b08ae73e0260a69af332e920e7d18c1c866405507b97c449928d4c27e
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMphqO:bc/y2lkF0+BeqO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2620	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2300	2024-04-16_c12ac62c4900b91271a374254574f1c5_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
2300	2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe
2620	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 2620	2300	2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe	28
PID 2300 wrote to memory of 2620	2300	2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe	28
PID 2300 wrote to memory of 2620	2300	2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe	28
PID 2300 wrote to memory of 2620	2300	2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2300
- 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:2620

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
43KB

MD5
3c902f0b24369d3fc59e6bbe782cd90c

SHA1
f78dcf555ae936b79eb685601dacad6ee0e5a97a

SHA256
604dcf2df41a8962b67f7af7ded6047dd350e3a761567cb7d5cf74f341bd4d2c

SHA512
66b5dbdcfe8a2d2a6b25b94d90f628825f4a927053255eb8cbcdcf7e31dd0ffac2c6e44d5a5b96562de12417d518eb72648abfdd79b6a6bdcf43f4ad393fe244

Download Submit
memory/2300-0-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2300-2-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2300-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2620-16-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download