67b158ad2bffb75eb03c294f43adc62ddabbca52903fb2ea0a478c82a76f6496

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 03:57

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General

Target

2024-02-14_bec0a4ebf93a1581007332bd51169fff_cryptolocker.exe
Size

60KB
MD5

bec0a4ebf93a1581007332bd51169fff
SHA1

79cdcc64009723f51dc5a18937cb7c1d029f7972
SHA256

67b158ad2bffb75eb03c294f43adc62ddabbca52903fb2ea0a478c82a76f6496
SHA512

c03a20c32239387e1fef12066e23d00745f9985daa5e499ad0a4d0e1e150181316b3840ed3a61c505e0bd8fb45012053b56e20c5374fd02a6b409e775eb6dac2
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHON:btng54SMLr+/AO/kIhfoKMHdv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012284-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2744	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1216	2024-02-14_bec0a4ebf93a1581007332bd51169fff_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
1216	2024-02-14_bec0a4ebf93a1581007332bd51169fff_cryptolocker.exe
2744	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1216 wrote to memory of 2744	1216	2024-02-14_bec0a4ebf93a1581007332bd51169fff_cryptolocker.exe	28
PID 1216 wrote to memory of 2744	1216	2024-02-14_bec0a4ebf93a1581007332bd51169fff_cryptolocker.exe	28
PID 1216 wrote to memory of 2744	1216	2024-02-14_bec0a4ebf93a1581007332bd51169fff_cryptolocker.exe	28
PID 1216 wrote to memory of 2744	1216	2024-02-14_bec0a4ebf93a1581007332bd51169fff_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_bec0a4ebf93a1581007332bd51169fff_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_bec0a4ebf93a1581007332bd51169fff_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1216
- 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:2744

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
60KB

MD5
87f64a80bd2454f1010ce0a9ee52d577

SHA1
93bbabb80e828b42e6b242d2e9bfa602605176a7

SHA256
1d4040ea6665e5d3bfdd16a00e0cfa5ea6361e4f2c40a121dbae1e01c166c031

SHA512
fb16ce996179a7b1aa3c9deb2856b68886ee3d6f20ff118b1bccfb5105d54cf3e597b533bdce18993acfd8b266dcf52fcf8dd3de8ce719493dd3041bc2047899

Download Submit
memory/1216-0-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/1216-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1216-2-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2744-16-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download