4832be9331c641407a7a0c1d391367d52bcda41079a7f029397ee00ca75abecb

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02/05/2024, 05:46

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General

Target

2024-05-02_80817319c379f0ff00298a7c287dd560_cryptolocker.exe
Size

44KB
MD5

80817319c379f0ff00298a7c287dd560
SHA1

7cadd107d4c73353a28985cf5956a015a22da130
SHA256

4832be9331c641407a7a0c1d391367d52bcda41079a7f029397ee00ca75abecb
SHA512

7f58b7e45c7b745663c41be0cf23c010e63da66c431b579046fc8f04aa959804fde9b365ba43869ab20e82caac8ca61be33176e713dc54db17e4c2b74bbf82c3
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMphej6NTG:bc/y2lkF0+BeVi

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000014454-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2532	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2336	2024-05-02_80817319c379f0ff00298a7c287dd560_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
2336	2024-05-02_80817319c379f0ff00298a7c287dd560_cryptolocker.exe
2532	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2532	2336	2024-05-02_80817319c379f0ff00298a7c287dd560_cryptolocker.exe	28
PID 2336 wrote to memory of 2532	2336	2024-05-02_80817319c379f0ff00298a7c287dd560_cryptolocker.exe	28
PID 2336 wrote to memory of 2532	2336	2024-05-02_80817319c379f0ff00298a7c287dd560_cryptolocker.exe	28
PID 2336 wrote to memory of 2532	2336	2024-05-02_80817319c379f0ff00298a7c287dd560_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-02_80817319c379f0ff00298a7c287dd560_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-02_80817319c379f0ff00298a7c287dd560_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2336
- 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:2532

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
44KB

MD5
4d61955365c63ebed7575e6707e64aa4

SHA1
81d514fa7396aa3f4a5ce28745c0ff7d4ab27855

SHA256
4a7d97e0c1cb0ac639ab4f17e84b76001afde9e2b74cf79ec9e365d9011ece47

SHA512
c9aff916222ba5855ab1f222540b74227e4be3d3cd924a86a431f73c996dcb121e0aab2637fd324bfa5f190935778db25e1219f0f5beb93d0a66302ff3068bac

Download Submit
memory/2336-0-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/2336-1-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/2336-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2532-23-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download