ea177fef002041fbe30840d6eca4f049f127583d8cad9c3de39b291fe635d039

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
16-05-2024 06:33

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General

Target

2024-05-16_262cd9a9f77e75996770cfd47c142a2a_cryptolocker.exe
Size

58KB
MD5

262cd9a9f77e75996770cfd47c142a2a
SHA1

8a9c7d01c2ed4ff308e885cb887bc01268fd4321
SHA256

ea177fef002041fbe30840d6eca4f049f127583d8cad9c3de39b291fe635d039
SHA512

20747cee57a6783f126b145eaaf4242fd801e2d4bd1a105857a4ad90efbca5d89e8ab919105df9114740080091a765402a7aa08830626490edb3c142f19974e0
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUH6h:btng54SMLr+/AO/kIhfoKMHdX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001416a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2680	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2800	2024-05-16_262cd9a9f77e75996770cfd47c142a2a_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
2800	2024-05-16_262cd9a9f77e75996770cfd47c142a2a_cryptolocker.exe
2680	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2800 wrote to memory of 2680	2800	2024-05-16_262cd9a9f77e75996770cfd47c142a2a_cryptolocker.exe	28
PID 2800 wrote to memory of 2680	2800	2024-05-16_262cd9a9f77e75996770cfd47c142a2a_cryptolocker.exe	28
PID 2800 wrote to memory of 2680	2800	2024-05-16_262cd9a9f77e75996770cfd47c142a2a_cryptolocker.exe	28
PID 2800 wrote to memory of 2680	2800	2024-05-16_262cd9a9f77e75996770cfd47c142a2a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-16_262cd9a9f77e75996770cfd47c142a2a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-16_262cd9a9f77e75996770cfd47c142a2a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2800
- 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:2680

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
58KB

MD5
bcb73f1e7a853b87c76132f5f018462f

SHA1
764c2bf378250cdf551e79e159908b12e0d21236

SHA256
2faabfc61b5d2d578b6a54b20b7da402cd03107a88c5f42be3b5fe4ee3fb22de

SHA512
58dfc25e0c5edfb712041a797ba3f2b399d5c74131c0cd9ed87c2c11118073f9e4a51625886bf26c8b6ca9edc95a00e44d1020b8e367ede53eba4fccc41c945a

Download Submit
memory/2680-23-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2800-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2800-8-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/2800-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download