18627af19b193afbe36d3154060b7090f3962e9547e68ba3c7e57415c1974873

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/03/2024, 16:34

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General

Target

2024-03-08_b91170a87ea8cb5892768578369c56b9_cryptolocker.exe
Size

34KB
MD5

b91170a87ea8cb5892768578369c56b9
SHA1

ba4c255208af908fc5eed0404bb9351a78ccd175
SHA256

18627af19b193afbe36d3154060b7090f3962e9547e68ba3c7e57415c1974873
SHA512

a53dfe9d00d66815337e7c50ecd488482c742fd1541554897111776f99978d11312b7ec92969e37b6e06adbe1f2f0add8b28c8cbcb7fdab0fbb62173429f170d
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiA0f9HMe:btB9g/WItCSsAGjX7e9N8se

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012251-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2144	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2956	2024-03-08_b91170a87ea8cb5892768578369c56b9_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
2956	2024-03-08_b91170a87ea8cb5892768578369c56b9_cryptolocker.exe
2144	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2956 wrote to memory of 2144	2956	2024-03-08_b91170a87ea8cb5892768578369c56b9_cryptolocker.exe	28
PID 2956 wrote to memory of 2144	2956	2024-03-08_b91170a87ea8cb5892768578369c56b9_cryptolocker.exe	28
PID 2956 wrote to memory of 2144	2956	2024-03-08_b91170a87ea8cb5892768578369c56b9_cryptolocker.exe	28
PID 2956 wrote to memory of 2144	2956	2024-03-08_b91170a87ea8cb5892768578369c56b9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_b91170a87ea8cb5892768578369c56b9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_b91170a87ea8cb5892768578369c56b9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2956
- 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:2144

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
34KB

MD5
e268ff4ae7d939a55de6e5d179dac4d7

SHA1
4de8c7cc264179e1d884bfa7bc7f5c030610d296

SHA256
d29796c8c119d0b30fb351e549e1ebfcb764e3ccbdd6280d630424295a109485

SHA512
bbc7a72daf223f2fa435cdf29b356b27cfcd9bd67e5a321f40d18b5136144ddb38758962e6e1f06781b406b06a4f011715e002f110aa973d7e10ac94e1d19411

Download Submit
memory/2144-18-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2956-0-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2956-5-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2956-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download