a0ebc208f7966e69e0258da3761cbe0ae7b4d1ed0887e96760d43dc7873978e9

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/03/2024, 04:28

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General

Target

2024-03-09_29fef9b50d2eff13d5c55345cd04fe08_cryptolocker.exe
Size

42KB
MD5

29fef9b50d2eff13d5c55345cd04fe08
SHA1

35182058eb70d97bf440c929cdc7a715872c2541
SHA256

a0ebc208f7966e69e0258da3761cbe0ae7b4d1ed0887e96760d43dc7873978e9
SHA512

ccca76350e0b9ea4150b38ed2c4d4beab1ec33309bb4d321bda839a8240454dbd51506b8338452ba5a09a8e99eb976eac9e71863bd67eb97d9d3468f93c114ec
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunrkwIxZWQpyO:btB9g/WItCSsAGjX7e9N0hunrknlN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2336	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1956	2024-03-09_29fef9b50d2eff13d5c55345cd04fe08_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
1956	2024-03-09_29fef9b50d2eff13d5c55345cd04fe08_cryptolocker.exe
2336	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 2336	1956	2024-03-09_29fef9b50d2eff13d5c55345cd04fe08_cryptolocker.exe	28
PID 1956 wrote to memory of 2336	1956	2024-03-09_29fef9b50d2eff13d5c55345cd04fe08_cryptolocker.exe	28
PID 1956 wrote to memory of 2336	1956	2024-03-09_29fef9b50d2eff13d5c55345cd04fe08_cryptolocker.exe	28
PID 1956 wrote to memory of 2336	1956	2024-03-09_29fef9b50d2eff13d5c55345cd04fe08_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-09_29fef9b50d2eff13d5c55345cd04fe08_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_29fef9b50d2eff13d5c55345cd04fe08_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1956
- 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:2336

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
42KB

MD5
06781109c1533a2def79053d08ecdc92

SHA1
bc8595f8cc31093e4b4096b62ba31129c504faae

SHA256
48482768db027e5253d82860a21d48e077cecbe2d16d9fb7396ab54eadfdad95

SHA512
b9c705da61a907f0e1baca88bb0ac191bc30472d6d6666b75972bd91495b3345e2c644083d69fb70f8ef81b03f7d9f21f4fb68acf366ef4c9a895ed9d0aabb85

Download Submit
memory/1956-0-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/1956-8-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/1956-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2336-17-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download