ff5229a76a914f63b89c07915037821615359b1e5ba88ada95e0c1437aa1556d

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
04/05/2024, 04:56

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General

Target

2024-05-04_b299ae6617adf98ebe0a803b92e54b0f_cryptolocker.exe
Size

38KB
MD5

b299ae6617adf98ebe0a803b92e54b0f
SHA1

f20ee52793e5924e52c7fac419bb8a8b18fec0b0
SHA256

ff5229a76a914f63b89c07915037821615359b1e5ba88ada95e0c1437aa1556d
SHA512

8d12b30642fed60fa2e82161e1682f1f113ef03211274bfbd5104c2f37b13d443aa8ed100d58f4f73117ba066a29500c0e1c25da711773a8f456b4aa7f7ea826
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSyHmYvV8d:btB9g/WItCSsAGjX7e9N0hunRvGIV8d

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001444f-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2552	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2964	2024-05-04_b299ae6617adf98ebe0a803b92e54b0f_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
2964	2024-05-04_b299ae6617adf98ebe0a803b92e54b0f_cryptolocker.exe
2552	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 2552	2964	2024-05-04_b299ae6617adf98ebe0a803b92e54b0f_cryptolocker.exe	28
PID 2964 wrote to memory of 2552	2964	2024-05-04_b299ae6617adf98ebe0a803b92e54b0f_cryptolocker.exe	28
PID 2964 wrote to memory of 2552	2964	2024-05-04_b299ae6617adf98ebe0a803b92e54b0f_cryptolocker.exe	28
PID 2964 wrote to memory of 2552	2964	2024-05-04_b299ae6617adf98ebe0a803b92e54b0f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-04_b299ae6617adf98ebe0a803b92e54b0f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-04_b299ae6617adf98ebe0a803b92e54b0f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2964
- 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:2552

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
38KB

MD5
f2aeffdebe723d5525a0398ab53f1d7a

SHA1
4e6d2732d53f66ee2e42110eaf9d7943c2f6ea2e

SHA256
b156d7dc0a99b82ff0c098346dd6b98c7adf96dc0aff4860d0bb9b38cd0d10c2

SHA512
6183c3cef853f5e6f61dda145dc6a0b0848d193be4d851eb1f3bd79aaca934c387ec35ef1f54e92ce23d9627d8e4726e60bee8d42626010d14cab42296ccefc8

Download Submit
memory/2552-23-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2964-0-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2964-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2964-8-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download