54b0a20d96b9248f1c8f3166dde79fa8b53f6d5b281120240965b2cdd7cda0c6

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15-04-2024 14:47

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General

Target

2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_cryptolocker.exe
Size

35KB
MD5

7c6735673817ab8a73ee416db7f6a0b3
SHA1

76d5129607f3afc2c66988a2f813f57fc7fbed01
SHA256

54b0a20d96b9248f1c8f3166dde79fa8b53f6d5b281120240965b2cdd7cda0c6
SHA512

2683837cca655c508455fe6131367a31bcd50e0d3655035121592ddbe578557a89f8d91cb7d185ad3c7c37a13db399eaa076615ffeae138249c29c390446648e
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiA0f9HMowJ:btB9g/WItCSsAGjX7e9N8sp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012254-23.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1528	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2056	2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_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
2056	2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_cryptolocker.exe
1528	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2056 wrote to memory of 1528	2056	2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_cryptolocker.exe	28
PID 2056 wrote to memory of 1528	2056	2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_cryptolocker.exe	28
PID 2056 wrote to memory of 1528	2056	2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_cryptolocker.exe	28
PID 2056 wrote to memory of 1528	2056	2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2056
- 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:1528

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

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

Filesize
35KB

MD5
ee49354706b23e1383698ca56d25d08f

SHA1
08f1a0b5a4030bd27e4c12b8b8bc475ed02c0637

SHA256
e6e23ecf7d312cc8172fd2201f0dfc59c29030c0cf3d3bde44ddabdb2bf95d9b

SHA512
99fa283bdc80b3f927e86543908ab47e793a5bf44adc7062f82b56e4ceb7aba8101fe1f40bc82cd3937f04495bf766448bc81144754dccb49c78cfc10fea8278

Download Submit
memory/1528-16-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2056-2-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2056-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2056-0-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download