182ab506e2b9184f9079a9048cb422e6e95382c9b0812445ce219eb9f8f855fe

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 22:32

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General

Target

2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe
Size

44KB
MD5

da10cdfeb5dea10b05b3a042f508ef40
SHA1

ea9aa8382deee85a66cdee83f94b5ba57fa5bead
SHA256

182ab506e2b9184f9079a9048cb422e6e95382c9b0812445ce219eb9f8f855fe
SHA512

360ed0e131ae6c77999c0515758236ca855f93bc6b32a1b750589202e2d788d1e150e3b9499001cdb3bc186a32b75f51304f3bb035fa910ba7cb5aebf8f0474b
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHocM4vUUOmJ+96egYB:btB9g/xtCSKfxLIcMzUw968B

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000143fa-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2944	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1040	2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_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
1040	2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe
2944	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1040 wrote to memory of 2944	1040	2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe	28
PID 1040 wrote to memory of 2944	1040	2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe	28
PID 1040 wrote to memory of 2944	1040	2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe	28
PID 1040 wrote to memory of 2944	1040	2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_da10cdfeb5dea10b05b3a042f508ef40_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1040
- 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:2944

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
44KB

MD5
6127a3fb13a4daa77998689264715d9b

SHA1
a7f9f6fdda3f4c023e4bc37e7656fb0f03e011b5

SHA256
9c62f6b0df687fbc9ca781223e4ddb59ab8bfd329ed66c85c52d2068584c3258

SHA512
ce7c606c48c7be86a93cfcd6d20b21c382fe5c9d21f0363313fb1b15a171942969c85321c070439c7f2c3ebc60df916f4ca7d1b628c0b628e029351c8d3a1f86

Download Submit
memory/1040-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1040-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1040-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2944-23-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download