af3f2689ecb1308c8bc456defb4f8d067dd272510a50463f8937b70bb12eaa4c

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/02/2024, 05:36

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General

Target

2024-02-28_9b5be67c8abdc532b60b2b7928d673ea_cryptolocker.exe
Size

46KB
MD5

9b5be67c8abdc532b60b2b7928d673ea
SHA1

8575cd8c6203af17f313378da523ecda1092515d
SHA256

af3f2689ecb1308c8bc456defb4f8d067dd272510a50463f8937b70bb12eaa4c
SHA512

21598ba821fee33941539d8503b6a48474ee1585432b11795ad35db1fdaa2fb7b22cd2b4b86e828d026906d5cdbdca092bc91b8d20bea8252f6f6da75997fbdb
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHoc/QQJP5q4Sq:btB9g/xtCSKfxLIc/C4Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001332e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2256	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1968	2024-02-28_9b5be67c8abdc532b60b2b7928d673ea_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
1968	2024-02-28_9b5be67c8abdc532b60b2b7928d673ea_cryptolocker.exe
2256	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2256	1968	2024-02-28_9b5be67c8abdc532b60b2b7928d673ea_cryptolocker.exe	28
PID 1968 wrote to memory of 2256	1968	2024-02-28_9b5be67c8abdc532b60b2b7928d673ea_cryptolocker.exe	28
PID 1968 wrote to memory of 2256	1968	2024-02-28_9b5be67c8abdc532b60b2b7928d673ea_cryptolocker.exe	28
PID 1968 wrote to memory of 2256	1968	2024-02-28_9b5be67c8abdc532b60b2b7928d673ea_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-28_9b5be67c8abdc532b60b2b7928d673ea_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_9b5be67c8abdc532b60b2b7928d673ea_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1968
- 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:2256

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
46KB

MD5
af4fc1a30429a50bb6e8171a356a472e

SHA1
d0d77249e94c369db36578cc4b2441571d733443

SHA256
b15f84e0fb169b97bdd0d679ab61a0e02b7121a06a047b6743c2d665e7ddcc53

SHA512
23a2409b620e3d631c1a4cae2c8d414c32fdaa99681f5575131fdab46c4f6b2b86b9fae630eb7dc21380e01b38a0a8639b16659f4550b965dcf334b1a435e1af

Download Submit
memory/1968-0-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/1968-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1968-8-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2256-22-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download