59b570f03b00fc2e9d80940ddeb08359b0123db62996c3c36cd2eeca9b4ddda5

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
31/05/2024, 10:04

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-31_c85d20f02403dca176bea960ef97e0a7_cryptolocker.exe
Size

37KB
MD5

c85d20f02403dca176bea960ef97e0a7
SHA1

cd1e65a0bc2f687e3c9e969a06b56a45efc10198
SHA256

59b570f03b00fc2e9d80940ddeb08359b0123db62996c3c36cd2eeca9b4ddda5
SHA512

6aedd24077f3f3d194f1fe4dc440a2b19afa1f0b14d410613eb77cd1db173eca8167d88b37ad1bd4b8160c8d362f184dd4f715c5588916c8d4053757ab80475a
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSyV:btB9g/WItCSsAGjX7e9N0hunRvV

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012286-14.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2820	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
788	2024-05-31_c85d20f02403dca176bea960ef97e0a7_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
788	2024-05-31_c85d20f02403dca176bea960ef97e0a7_cryptolocker.exe
2820	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 788 wrote to memory of 2820	788	2024-05-31_c85d20f02403dca176bea960ef97e0a7_cryptolocker.exe	28
PID 788 wrote to memory of 2820	788	2024-05-31_c85d20f02403dca176bea960ef97e0a7_cryptolocker.exe	28
PID 788 wrote to memory of 2820	788	2024-05-31_c85d20f02403dca176bea960ef97e0a7_cryptolocker.exe	28
PID 788 wrote to memory of 2820	788	2024-05-31_c85d20f02403dca176bea960ef97e0a7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-31_c85d20f02403dca176bea960ef97e0a7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_c85d20f02403dca176bea960ef97e0a7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:788
- 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:2820

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
37KB

MD5
40eaa80906634a1ad292ba18b92fb225

SHA1
632968ff81def43f5df7965f392e898f7fd2b4ad

SHA256
fa8284aa7bfdacd270ba8dc086ce203f1dca305504e5ac46a10358b68f6ff3fb

SHA512
b6e58a4a6aa22f64090b3edf3eb6c2d9a163d939fbcb16b5c64aeda47d31b29b44fcf4bb1e2fc429e978eb86957b8752650b544bc7394e5b8b2e477f3435beff

Download Submit
memory/788-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/788-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/788-8-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2820-23-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download