96f32c3069af25d5183ef7f4d50c154f94bb2fb4ffbc3f155cd4f92a042217a3

Analysis

max time kernel
119s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/04/2024, 04:44

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General

Target

2024-04-28_91a0811ee0fc3e402d14ff185739305d_cryptolocker.exe
Size

40KB
MD5

91a0811ee0fc3e402d14ff185739305d
SHA1

d835d2d94ad8afc38b2efab6738b72814c5ce36b
SHA256

96f32c3069af25d5183ef7f4d50c154f94bb2fb4ffbc3f155cd4f92a042217a3
SHA512

281841dc34705778a255310de20a9c9da5510658e556f175268c1183e71994b42bb12206d94251100d7014d63e475cbcc9d4c0e436f614abc17cebc4a541b232
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKzH15U/Etx:btB9g/WItCSsAGjX7e9N0hunKLYUx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001560a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2620	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2300	2024-04-28_91a0811ee0fc3e402d14ff185739305d_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
2300	2024-04-28_91a0811ee0fc3e402d14ff185739305d_cryptolocker.exe
2620	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 2620	2300	2024-04-28_91a0811ee0fc3e402d14ff185739305d_cryptolocker.exe	28
PID 2300 wrote to memory of 2620	2300	2024-04-28_91a0811ee0fc3e402d14ff185739305d_cryptolocker.exe	28
PID 2300 wrote to memory of 2620	2300	2024-04-28_91a0811ee0fc3e402d14ff185739305d_cryptolocker.exe	28
PID 2300 wrote to memory of 2620	2300	2024-04-28_91a0811ee0fc3e402d14ff185739305d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-28_91a0811ee0fc3e402d14ff185739305d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_91a0811ee0fc3e402d14ff185739305d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2300
- 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:2620

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
40KB

MD5
61d76ca0adcdc4c88970fa6d4d525f11

SHA1
bdecf654b0bad41de4760a518cccfe52f1af2912

SHA256
9ff73ffeed17623464df9bbc5790f44ce535267ad05835d591772ebca3f8c8c1

SHA512
144a2297064e65b314f50150eec5ee361eb2307c4ecc72bc61f4f915542069e438088a7ee8fab2a1e71b5239c452133d3b9674b60b8e0dc2da90540a5362fa57

Download Submit
memory/2300-8-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2300-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2300-0-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2620-23-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download