262fe3fe546ab4321c8660bde7da9c1811f801b7cbfb41db74672dfda1afdebd

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
28-03-2024 09:44

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General

Target

2024-03-28_7b73b71d70ab81fee787bb709eccec9f_cryptolocker.exe
Size

58KB
MD5

7b73b71d70ab81fee787bb709eccec9f
SHA1

6bf0e531fa8ebcc12fc4951885598e4ed4ea1d4a
SHA256

262fe3fe546ab4321c8660bde7da9c1811f801b7cbfb41db74672dfda1afdebd
SHA512

dc197714c39b227ae8009de5ba84639aded2c6b8a9b49a5bc14583f2bee6ec18a40c97232eb2c08257355837ab7d1da27c81b1e655f7902964f2ee9a89fdca47
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHTf:btng54SMLr+/AO/kIhfoKMHdu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012252-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2664	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1772	2024-03-28_7b73b71d70ab81fee787bb709eccec9f_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
1772	2024-03-28_7b73b71d70ab81fee787bb709eccec9f_cryptolocker.exe
2664	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1772 wrote to memory of 2664	1772	2024-03-28_7b73b71d70ab81fee787bb709eccec9f_cryptolocker.exe	28
PID 1772 wrote to memory of 2664	1772	2024-03-28_7b73b71d70ab81fee787bb709eccec9f_cryptolocker.exe	28
PID 1772 wrote to memory of 2664	1772	2024-03-28_7b73b71d70ab81fee787bb709eccec9f_cryptolocker.exe	28
PID 1772 wrote to memory of 2664	1772	2024-03-28_7b73b71d70ab81fee787bb709eccec9f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-28_7b73b71d70ab81fee787bb709eccec9f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_7b73b71d70ab81fee787bb709eccec9f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1772
- 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:2664

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
58KB

MD5
e4571e950ba235132ca6fb375089950e

SHA1
ace970860902bef13c2e5b99ac1a9e7a4ac66c76

SHA256
7adb7e73b02ac9f2f4830420464d20f407ce70c8ac7a1d32a3eb619eb7ef5e5c

SHA512
10003f59d27d25362ca0a74e53dd5b212cb1efbfb69df37c9baf1c9a1ca0aa04190665c6579b0b312103a3ab7bdaa55baf202b6f0ffb4cf1f8ca9b00940e394c

Download Submit
memory/1772-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1772-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1772-8-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2664-18-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download