b67e31bed3c279c718d88616e5b149598cf842c6a4f9636a6edcd24e35f323d3

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
02/08/2023, 18:33

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General

Target

41524b7b798df5c0185728dafb07dd14_cryptolocker_JC.exe
Size

30KB
MD5

41524b7b798df5c0185728dafb07dd14
SHA1

dfb01b3722e27589a30e09617ba83ea06397273d
SHA256

b67e31bed3c279c718d88616e5b149598cf842c6a4f9636a6edcd24e35f323d3
SHA512

8c1836f9ea67e9f30f03786686050e0b72d5bc051273f92176b857e66806d15928a357266ecaa563e52a7f569de4cb1b920b2a033bdc72ac1dba7090b367f636
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoi0Wiz+:b7o/2n1TCraU6GD1a4X0WH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2832	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2564	41524b7b798df5c0185728dafb07dd14_cryptolocker_JC.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
2564	41524b7b798df5c0185728dafb07dd14_cryptolocker_JC.exe
2832	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 2832	2564	41524b7b798df5c0185728dafb07dd14_cryptolocker_JC.exe	28
PID 2564 wrote to memory of 2832	2564	41524b7b798df5c0185728dafb07dd14_cryptolocker_JC.exe	28
PID 2564 wrote to memory of 2832	2564	41524b7b798df5c0185728dafb07dd14_cryptolocker_JC.exe	28
PID 2564 wrote to memory of 2832	2564	41524b7b798df5c0185728dafb07dd14_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\41524b7b798df5c0185728dafb07dd14_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\41524b7b798df5c0185728dafb07dd14_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2564
- 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:2832

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

C:\Users\Admin\AppData\Local\Temp\rewok.exe

Filesize
30KB

MD5
d2885b582e4a21fd96520f27c87e2304

SHA1
a6c483aa17a0107ade951a441249967206c10c2f

SHA256
c995420347e56cdeb0551baece2e5a7d65a93a765bec7ce7d139f366f07c75cf

SHA512
b8bb51b3d6f7f19a621d3ae31b0061230b9125d55d1911e084af4b75a5700eece5f057532c2d18f03906ab143ea5ec0db42d85760f431a5a10aa026e01d5e4f8

Download Submit
C:\Users\Admin\AppData\Local\Temp\rewok.exe

Filesize
30KB

MD5
d2885b582e4a21fd96520f27c87e2304

SHA1
a6c483aa17a0107ade951a441249967206c10c2f

SHA256
c995420347e56cdeb0551baece2e5a7d65a93a765bec7ce7d139f366f07c75cf

SHA512
b8bb51b3d6f7f19a621d3ae31b0061230b9125d55d1911e084af4b75a5700eece5f057532c2d18f03906ab143ea5ec0db42d85760f431a5a10aa026e01d5e4f8

Download Submit
\Users\Admin\AppData\Local\Temp\rewok.exe

Filesize
30KB

MD5
d2885b582e4a21fd96520f27c87e2304

SHA1
a6c483aa17a0107ade951a441249967206c10c2f

SHA256
c995420347e56cdeb0551baece2e5a7d65a93a765bec7ce7d139f366f07c75cf

SHA512
b8bb51b3d6f7f19a621d3ae31b0061230b9125d55d1911e084af4b75a5700eece5f057532c2d18f03906ab143ea5ec0db42d85760f431a5a10aa026e01d5e4f8

Download Submit
memory/2564-54-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2564-55-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2564-56-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2832-70-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download