8ebf5883421431e52676655efb36e2cfe72dbc94fb6c914822aed31bcbb2dde2

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09-04-2024 16:29

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General

Target

2024-04-09_34bc08eceeab7fed032f5dacc9a90fbc_cryptolocker.exe
Size

38KB
MD5

34bc08eceeab7fed032f5dacc9a90fbc
SHA1

6b124e546aae2a1c5b5b69eb83c6de276103e9da
SHA256

8ebf5883421431e52676655efb36e2cfe72dbc94fb6c914822aed31bcbb2dde2
SHA512

a928e6da6c11417973b4bf094d2adf5030bdfec8f3b4988e0363315053ab17516d78c8684214fc628591907b03e88ef6a685e7143ade42377558090d7cb6029c
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKzH15U/E2:btB9g/WItCSsAGjX7e9N0hunKLYJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012254-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2792	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1420	2024-04-09_34bc08eceeab7fed032f5dacc9a90fbc_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
1420	2024-04-09_34bc08eceeab7fed032f5dacc9a90fbc_cryptolocker.exe
2792	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1420 wrote to memory of 2792	1420	2024-04-09_34bc08eceeab7fed032f5dacc9a90fbc_cryptolocker.exe	28
PID 1420 wrote to memory of 2792	1420	2024-04-09_34bc08eceeab7fed032f5dacc9a90fbc_cryptolocker.exe	28
PID 1420 wrote to memory of 2792	1420	2024-04-09_34bc08eceeab7fed032f5dacc9a90fbc_cryptolocker.exe	28
PID 1420 wrote to memory of 2792	1420	2024-04-09_34bc08eceeab7fed032f5dacc9a90fbc_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-09_34bc08eceeab7fed032f5dacc9a90fbc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-09_34bc08eceeab7fed032f5dacc9a90fbc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1420
- 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:2792

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
39KB

MD5
bb54b085295059c7a31ea53fb88a2633

SHA1
a545c13bbfbaf6ecb7271d61ace083a06849fe86

SHA256
5d78202cc16dc8f34072578006aa1c456b655a6059944a9b82ec4a76a10d2917

SHA512
39f0cc1a2a096e7d68b7f1ea7ef7d41f1744acfd7eef6c0d42026bfb44b34996e092b763cc8812218d51a4fe3fb4991239ae2b50a90556bb397d4cd453915a6b

Download Submit
memory/1420-0-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1420-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1420-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2792-18-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download