fcba8cfb486c838536da27fd70d55fb9bb6f71ef3867c219d637ee233b6a1abc

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 03:42

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General

Target

2024-02-14_3f2a5034789c16c6822168654690a477_cryptolocker.exe
Size

36KB
MD5

3f2a5034789c16c6822168654690a477
SHA1

4a97383a73917a74ac50ae6644b283c23f1440eb
SHA256

fcba8cfb486c838536da27fd70d55fb9bb6f71ef3867c219d637ee233b6a1abc
SHA512

95f06cff164de7ca9b6c428b342b61f66f1e86ba6ce9cd4dbf60132d6b35b3dcd4e6089388adb4b20cac394bb8cde94ae696e5f7cfb9a01c1903a1c8187a3850
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRCO:btB9g/WItCSsAGjX7e9N0hunRCO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001225a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2500	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
832	2024-02-14_3f2a5034789c16c6822168654690a477_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
832	2024-02-14_3f2a5034789c16c6822168654690a477_cryptolocker.exe
2500	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 832 wrote to memory of 2500	832	2024-02-14_3f2a5034789c16c6822168654690a477_cryptolocker.exe	28
PID 832 wrote to memory of 2500	832	2024-02-14_3f2a5034789c16c6822168654690a477_cryptolocker.exe	28
PID 832 wrote to memory of 2500	832	2024-02-14_3f2a5034789c16c6822168654690a477_cryptolocker.exe	28
PID 832 wrote to memory of 2500	832	2024-02-14_3f2a5034789c16c6822168654690a477_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_3f2a5034789c16c6822168654690a477_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_3f2a5034789c16c6822168654690a477_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:832
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2500

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\gewos.exe

Filesize
36KB

MD5
a7d5fc3ab38c4f9b4c9e9fecb035d099

SHA1
09dd8940462cc8c6a8cdc4087690defa1fadcd1a

SHA256
846c340fde78a531c223090689d153fe610dcd45caabcd33aa0667c0a562ab15

SHA512
ecd318a9e52972cdec021849ecbdbdb45d9ccffc0f9866dcd79082082321bf13e5cb273490f56dcd90f80e1f1ece1747630380c70b4f838555aff79479033100

Download Submit
memory/832-0-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/832-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/832-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2500-21-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download