789dafa2e9efb72b7d767fcd2edc003031659dc670f60187f64ea2a97a0a7308

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
10/05/2024, 05:51

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General

Target

2024-05-10_981f688469e7bb0efbb9ee21dfa86c22_cryptolocker.exe
Size

41KB
MD5

981f688469e7bb0efbb9ee21dfa86c22
SHA1

89ca1339ee703b4c73d3c0d9d959e201776c770b
SHA256

789dafa2e9efb72b7d767fcd2edc003031659dc670f60187f64ea2a97a0a7308
SHA512

2a9539a12fcc4adcc9025671c949a11d2790393cc1f83a67c0be97583bfce7abe169241c019e27d9688781eda123bab05b54b5d8bd2d83301ad4217aef1574cd
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKzH15U/ELn:btB9g/WItCSsAGjX7e9N0hunKLYAn

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001227c-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1676	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1740	2024-05-10_981f688469e7bb0efbb9ee21dfa86c22_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	2024-05-10_981f688469e7bb0efbb9ee21dfa86c22_cryptolocker.exe
1676	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 1676	1740	2024-05-10_981f688469e7bb0efbb9ee21dfa86c22_cryptolocker.exe	28
PID 1740 wrote to memory of 1676	1740	2024-05-10_981f688469e7bb0efbb9ee21dfa86c22_cryptolocker.exe	28
PID 1740 wrote to memory of 1676	1740	2024-05-10_981f688469e7bb0efbb9ee21dfa86c22_cryptolocker.exe	28
PID 1740 wrote to memory of 1676	1740	2024-05-10_981f688469e7bb0efbb9ee21dfa86c22_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-10_981f688469e7bb0efbb9ee21dfa86c22_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_981f688469e7bb0efbb9ee21dfa86c22_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:1676

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
41KB

MD5
5f23acbd1ca20e0f06ec7c60978b0d43

SHA1
90ebdb55215430edf6602c9ca4032178282fa307

SHA256
b97e957025bc5234bc6f2fd9f91b97db2a2f93bdd21f1c1a4dfee2ce8be886cd

SHA512
e30b00a51cc4ed7b7c41e0a39fbe890ced35182a9e0ff24487695d638b356630f2a660e1d15b093f893e6f2cfbbd6b9e7b6167150e548ed112ab6221cc530123

Download Submit
memory/1676-23-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

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

Filesize
24KB

Download
memory/1740-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1740-8-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download