570aeb950430c19f3ab771889813253f2fa3e78dc55fecd1222ec816712dbd9c

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 03:52

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General

Target

2024-02-19_b14b40af5402882e3b3d9b01d762da18_cryptolocker.exe
Size

35KB
MD5

b14b40af5402882e3b3d9b01d762da18
SHA1

41b26d07692274ed468aa4d3824590d23b0c8b12
SHA256

570aeb950430c19f3ab771889813253f2fa3e78dc55fecd1222ec816712dbd9c
SHA512

eeee4e9859680ffc1f5131304563ea937a8d450c46118c5bdd2b2f440e77f05df203ff0beb8bb8004deef6cf99307de88554cf594ea02397c91bbc6f0a90f864
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiA0jgg18uuuW:btB9g/WItCSsAGjX7e9NABW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012287-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2744	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
3012	2024-02-19_b14b40af5402882e3b3d9b01d762da18_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
3012	2024-02-19_b14b40af5402882e3b3d9b01d762da18_cryptolocker.exe
2744	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 2744	3012	2024-02-19_b14b40af5402882e3b3d9b01d762da18_cryptolocker.exe	28
PID 3012 wrote to memory of 2744	3012	2024-02-19_b14b40af5402882e3b3d9b01d762da18_cryptolocker.exe	28
PID 3012 wrote to memory of 2744	3012	2024-02-19_b14b40af5402882e3b3d9b01d762da18_cryptolocker.exe	28
PID 3012 wrote to memory of 2744	3012	2024-02-19_b14b40af5402882e3b3d9b01d762da18_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_b14b40af5402882e3b3d9b01d762da18_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_b14b40af5402882e3b3d9b01d762da18_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3012
- 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:2744

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
35KB

MD5
4afb7d39c50cd24ba0b72ec5f773e5a7

SHA1
cf8cc99c22f1b7cefd3a206d25e5d4fd41dceb62

SHA256
c42c8b715038fa4ed448434f4d9c14d169d0d0398185c1b52d97bf65c7c47613

SHA512
93a4e4abea53f6c570dfb374a30b333181c4eb87bc43932efe1d429d287671493a5ac48315c1c6d394357155e49286f08a133c9077bd62d95b866497ce75ace9

Download Submit
memory/2744-23-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/3012-0-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/3012-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3012-7-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download