905bbb2c0c369be78eb844b7115822dc6125aedf84f1d842ec2359f60e6cc8ee

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/01/2024, 07:26

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General

Target

2024-01-26_61fc3f5668bafff11f5ff76dcb1edd68_cryptolocker.exe
Size

31KB
MD5

61fc3f5668bafff11f5ff76dcb1edd68
SHA1

c97a4294d2ea2cfd88015b2b9dae2445938d91bc
SHA256

905bbb2c0c369be78eb844b7115822dc6125aedf84f1d842ec2359f60e6cc8ee
SHA512

1906ade6a4816e299d064839cbf9ab41306768a87adbb97dbb3a8c9d4c8ffe85c7562a4cee5f3c8cb73743a12926e30121424bad936ae4bb3be39d81e4d13a26
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B1Rwp:b7o/2n1TCraU6GD1a4Xt9bRwp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001224a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1212	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2288	2024-01-26_61fc3f5668bafff11f5ff76dcb1edd68_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
2288	2024-01-26_61fc3f5668bafff11f5ff76dcb1edd68_cryptolocker.exe
1212	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 1212	2288	2024-01-26_61fc3f5668bafff11f5ff76dcb1edd68_cryptolocker.exe	28
PID 2288 wrote to memory of 1212	2288	2024-01-26_61fc3f5668bafff11f5ff76dcb1edd68_cryptolocker.exe	28
PID 2288 wrote to memory of 1212	2288	2024-01-26_61fc3f5668bafff11f5ff76dcb1edd68_cryptolocker.exe	28
PID 2288 wrote to memory of 1212	2288	2024-01-26_61fc3f5668bafff11f5ff76dcb1edd68_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-26_61fc3f5668bafff11f5ff76dcb1edd68_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_61fc3f5668bafff11f5ff76dcb1edd68_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:1212

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\rewok.exe

Filesize
32KB

MD5
ca151edb20afcf88c1724943ebbc0a94

SHA1
6e4580a57e0759224ec05ee4288e6984b3cfc632

SHA256
9a62a31a9b498f6445049cdb346f4ba373ab2ad4ce71df73ad928720b4c2f0c8

SHA512
7e024fdc1be86b592a6f98ab2da5a54b1937c0cbe1a4e370508daa82b65699b0708e316bbbf5f4ccd313e44676873aff456089117a4c78225a0d548e1afa2cb2

Download Submit
memory/2288-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2288-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2288-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download