6d2b2d8428cedb1220c36cec55c778a033db0563a289783a01af917e32b93b9e

Analysis

max time kernel
132s
max time network
140s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/04/2024, 07:31

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General

Target

2024-04-23_4546a0ea205dd30b184d0da986d0ca76_cryptolocker.exe
Size

43KB
MD5

4546a0ea205dd30b184d0da986d0ca76
SHA1

83bde00c12d292c75176fc3bf188aa48ec2fd788
SHA256

6d2b2d8428cedb1220c36cec55c778a033db0563a289783a01af917e32b93b9e
SHA512

970c51e1d213f604f4c12f743f4a5f6793d7334e97015b198d348588f93fee8563e119b98e7283939f75ab3f8780bf889d519a8c99f6d08c872dd9e3c918a1b9
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMphqM:bc/y2lkF0+BeqM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001224e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1816	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
3008	2024-04-23_4546a0ea205dd30b184d0da986d0ca76_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
3008	2024-04-23_4546a0ea205dd30b184d0da986d0ca76_cryptolocker.exe
1816	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 1816	3008	2024-04-23_4546a0ea205dd30b184d0da986d0ca76_cryptolocker.exe	28
PID 3008 wrote to memory of 1816	3008	2024-04-23_4546a0ea205dd30b184d0da986d0ca76_cryptolocker.exe	28
PID 3008 wrote to memory of 1816	3008	2024-04-23_4546a0ea205dd30b184d0da986d0ca76_cryptolocker.exe	28
PID 3008 wrote to memory of 1816	3008	2024-04-23_4546a0ea205dd30b184d0da986d0ca76_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-23_4546a0ea205dd30b184d0da986d0ca76_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_4546a0ea205dd30b184d0da986d0ca76_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3008
- 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:1816

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
43KB

MD5
da6e801cf9b5509079a16c45fa454b6c

SHA1
88d79faacdaa7a99556feea882fca7809d0ce4de

SHA256
30b4376d5b6649c6784dfddc55f97703592404894a4c71d8d0c345f71ba37bb7

SHA512
235f4d53b6b8409bf55db839dd30b5a6c38dc7e87f8e0cf2745031a9f7950326798ee657d702be11902a0f8bd265e0381da2125cb474bab483323122765f2d5a

Download Submit
memory/1816-17-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/3008-0-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/3008-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3008-7-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download