5eef8c4e6fcac8e19c228d77e2848548ea25047852b5494cd14b14ae5894830f

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 00:34

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General

Target

2024-01-27_8b72cc23762a5f215489a1cb003b70f7_cryptolocker.exe
Size

34KB
MD5

8b72cc23762a5f215489a1cb003b70f7
SHA1

fa9a79e50be0968a671b8fe1ab17ff501f5bcb52
SHA256

5eef8c4e6fcac8e19c228d77e2848548ea25047852b5494cd14b14ae5894830f
SHA512

340a59b740dcecc437ce71ddc8fe3d5a2e8ba2659475a73cdc22866bdd277f7d34eece310b13a2fac58d7009c54424cf8b37dc01790851320146a799709543c5
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qd:btB9g/WItCSsAGjX7r3BTd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001226e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2144	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2312	2024-01-27_8b72cc23762a5f215489a1cb003b70f7_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
2312	2024-01-27_8b72cc23762a5f215489a1cb003b70f7_cryptolocker.exe
2144	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 2144	2312	2024-01-27_8b72cc23762a5f215489a1cb003b70f7_cryptolocker.exe	28
PID 2312 wrote to memory of 2144	2312	2024-01-27_8b72cc23762a5f215489a1cb003b70f7_cryptolocker.exe	28
PID 2312 wrote to memory of 2144	2312	2024-01-27_8b72cc23762a5f215489a1cb003b70f7_cryptolocker.exe	28
PID 2312 wrote to memory of 2144	2312	2024-01-27_8b72cc23762a5f215489a1cb003b70f7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_8b72cc23762a5f215489a1cb003b70f7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_8b72cc23762a5f215489a1cb003b70f7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2312
- 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:2144

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
34KB

MD5
37cfdb7d38b7b632dc8737da024ef322

SHA1
68c82e5b5e705338ab779516d26767ce4e37cfbd

SHA256
064a994a3a29404d70ac3babd40459280a0534a048894d6153142f2d53a7253c

SHA512
33d24d9411825f74e604f555ccef7e861706334bc2b21a6a0173eefb5729408769080f1503ef72fed9ea2f653179a23c75dd0a03ef029ac7545043c8f1d2dc7b

Download Submit
memory/2144-21-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2312-0-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2312-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2312-2-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download