f24abadfee98370f14f30266999b90ec7cecf26a524eaf7b5fc066896f5a6fb0

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24/01/2024, 01:32

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General

Target

2024-01-24_cfa6f4d8b1a315cfd3dcc6b92aa57cf5_cryptolocker.exe
Size

41KB
MD5

cfa6f4d8b1a315cfd3dcc6b92aa57cf5
SHA1

4e11b88266bbb7b9eee8d4fd6acdb4d7e819d679
SHA256

f24abadfee98370f14f30266999b90ec7cecf26a524eaf7b5fc066896f5a6fb0
SHA512

e13a81e3af8896704bbf6ea7188f8879ead6b256f2f0fc24a83619cc6b417c9fb7f0c102837baf7bc7142a45112a3db6718a6402ff338c2130d10bf93d241f02
SSDEEP

768:b7o/2n1TCraU6GD1a4Xcn62TUdcuQlqJ51mwovv:bc/y2lm6Y0AqJ51mwovv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1704	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2076	2024-01-24_cfa6f4d8b1a315cfd3dcc6b92aa57cf5_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
2076	2024-01-24_cfa6f4d8b1a315cfd3dcc6b92aa57cf5_cryptolocker.exe
1704	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 1704	2076	2024-01-24_cfa6f4d8b1a315cfd3dcc6b92aa57cf5_cryptolocker.exe	28
PID 2076 wrote to memory of 1704	2076	2024-01-24_cfa6f4d8b1a315cfd3dcc6b92aa57cf5_cryptolocker.exe	28
PID 2076 wrote to memory of 1704	2076	2024-01-24_cfa6f4d8b1a315cfd3dcc6b92aa57cf5_cryptolocker.exe	28
PID 2076 wrote to memory of 1704	2076	2024-01-24_cfa6f4d8b1a315cfd3dcc6b92aa57cf5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-24_cfa6f4d8b1a315cfd3dcc6b92aa57cf5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_cfa6f4d8b1a315cfd3dcc6b92aa57cf5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2076
- 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:1704

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
c8f396dd918b83e6815f4f37067d0532

SHA1
a3cc2168168ed61d0c0bea7f65aeb3e2a73cb9f7

SHA256
4c3396bcb1734413e6ca1fa072c276725779adfaa464c31c39c30dedab016123

SHA512
1ea542c950c82627cf7539d3e8500fd56e8d599a0bc1e4592d17d3df2ef4e8f8904e7942135c21b7be81d35050d64e4235c0c28127c4ec83070d211074dc97d3

Download Submit
memory/1704-18-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2076-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2076-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2076-4-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download