5d5f19144dacf20fd4a7542e3252cf29f993c8e9592911429526a494d0d379de

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30/05/2024, 08:24

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General

Target

2024-05-30_21d618f425611e75129efb824b668a81_cryptolocker.exe
Size

38KB
MD5

21d618f425611e75129efb824b668a81
SHA1

6ba6137564af72f13202ef80fa9caec600669f8d
SHA256

5d5f19144dacf20fd4a7542e3252cf29f993c8e9592911429526a494d0d379de
SHA512

9073f253e54af321fa4ce3debf296ad3a9a8122213a0a7afbc67c933300617475c9f1e4a0cea572bfbb2c6ef5aa22b74ab1cd5a85a657c652f58a16f2732f02e
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSy3n:btB9g/WItCSsAGjX7e9N0hunRv3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001443b-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2620	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2372	2024-05-30_21d618f425611e75129efb824b668a81_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
2372	2024-05-30_21d618f425611e75129efb824b668a81_cryptolocker.exe
2620	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 2620	2372	2024-05-30_21d618f425611e75129efb824b668a81_cryptolocker.exe	28
PID 2372 wrote to memory of 2620	2372	2024-05-30_21d618f425611e75129efb824b668a81_cryptolocker.exe	28
PID 2372 wrote to memory of 2620	2372	2024-05-30_21d618f425611e75129efb824b668a81_cryptolocker.exe	28
PID 2372 wrote to memory of 2620	2372	2024-05-30_21d618f425611e75129efb824b668a81_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-30_21d618f425611e75129efb824b668a81_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_21d618f425611e75129efb824b668a81_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2372
- 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: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\gewos.exe

Filesize
38KB

MD5
962ede84933fdc505d70502e62d548ab

SHA1
6b665c52850753110d0c242dff695ff289fa4842

SHA256
14ce33b514e0e2c25a548fb5e2aa8218d5956c4d07c72a687c52b49116ee6eef

SHA512
c39064c75cd2e96decf2b05d60d984fc9a375fdb4c7f19561b351fd93cbae493fa5947405a1434a5863c138e5beafe8e8840c3dbd1c3d7a7c760ec4c34c293ba

Download Submit
memory/2372-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2372-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2372-8-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2620-23-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download