76d96440920903feab31a57db74faa6e6669bf0162909f9d82bddc167b4f8e94

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
30/04/2024, 17:30

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General

Target

2024-04-30_cd6986982567d6eb7f34b6c37470c57f_cryptolocker.exe
Size

39KB
MD5

cd6986982567d6eb7f34b6c37470c57f
SHA1

da5b5f9b03d5a01a1a5412e4536a7136f417c721
SHA256

76d96440920903feab31a57db74faa6e6669bf0162909f9d82bddc167b4f8e94
SHA512

0b7dc9456e2667ba339d820a797fecc822134bcbc0325d88a317e6e75851a8cf68fc81720418f29208a829bd5c5e658e1dd7145b8135f93c111cc962a08018b8
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKzH15U/EG:btB9g/WItCSsAGjX7e9N0hunKLYp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001340b-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2504	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2000	2024-04-30_cd6986982567d6eb7f34b6c37470c57f_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
2000	2024-04-30_cd6986982567d6eb7f34b6c37470c57f_cryptolocker.exe
2504	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 2504	2000	2024-04-30_cd6986982567d6eb7f34b6c37470c57f_cryptolocker.exe	28
PID 2000 wrote to memory of 2504	2000	2024-04-30_cd6986982567d6eb7f34b6c37470c57f_cryptolocker.exe	28
PID 2000 wrote to memory of 2504	2000	2024-04-30_cd6986982567d6eb7f34b6c37470c57f_cryptolocker.exe	28
PID 2000 wrote to memory of 2504	2000	2024-04-30_cd6986982567d6eb7f34b6c37470c57f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_cd6986982567d6eb7f34b6c37470c57f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_cd6986982567d6eb7f34b6c37470c57f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2000
- 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:2504

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
40KB

MD5
b223615543e2f62b83cdb49fe41a09c3

SHA1
654af7ee4ae25c5df26a9d8fa02ae073cc82f69c

SHA256
f24722a138cc43d073766c914ec26d570f807b6fd29c1c0aae912743f14b75c8

SHA512
714de50d54b2de57c43f3f2795685fd2709c1deceb3033808906459857cc4bf97edbbf2503898dc6d35ed0a6ebfe11394bc70d9e6702ed0f2f8d0fa49be4b560

Download Submit
memory/2000-0-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2000-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2000-8-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2504-23-0x0000000001B40000-0x0000000001B46000-memory.dmp

Filesize
24KB

Download