0328e42424a0399e202950e21eb6a0e1f5fc4f7ffdd965f13b3ef4075e44d806

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/04/2024, 02:10

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General

Target

2024-04-09_e3c84da91f93a8c277550caa62a74f24_cryptolocker.exe
Size

59KB
MD5

e3c84da91f93a8c277550caa62a74f24
SHA1

195530e76857bdbc20e235aeaaf38f448522d8b2
SHA256

0328e42424a0399e202950e21eb6a0e1f5fc4f7ffdd965f13b3ef4075e44d806
SHA512

7753199e6cb4406e67ed355f2d2c27470829e8fc46ad5e5ef814d464df5cc1c7b98b6756b95c6792cd27a9370733c3febfcca924529be1f2d1699e74391236ed
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZj:btng54SMLr+/AO/kIhfoKMHdaj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001223a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2504	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1740	2024-04-09_e3c84da91f93a8c277550caa62a74f24_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
1740	2024-04-09_e3c84da91f93a8c277550caa62a74f24_cryptolocker.exe
2504	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 2504	1740	2024-04-09_e3c84da91f93a8c277550caa62a74f24_cryptolocker.exe	28
PID 1740 wrote to memory of 2504	1740	2024-04-09_e3c84da91f93a8c277550caa62a74f24_cryptolocker.exe	28
PID 1740 wrote to memory of 2504	1740	2024-04-09_e3c84da91f93a8c277550caa62a74f24_cryptolocker.exe	28
PID 1740 wrote to memory of 2504	1740	2024-04-09_e3c84da91f93a8c277550caa62a74f24_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-09_e3c84da91f93a8c277550caa62a74f24_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-09_e3c84da91f93a8c277550caa62a74f24_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1740
- 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:2504

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
60KB

MD5
0a914a1102407930ae706212de6cee81

SHA1
023a4949b2ebcf08c8622007e92364f308b8d162

SHA256
630aee83f243d2f1a0c410c9757e10afa1ece8a749129a32a1100fdb3ca06f7c

SHA512
b416fa181d579924605a0b8b6a21551e029af20ff7485276b6ddff3f3507c8bc8d9d3e591b87d92f00b66c2f178a239d001e0420385e0f7db675582db3dec122

Download Submit
memory/1740-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1740-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1740-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2504-23-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download