c2840215b8ca72cd4beb01f7aa223e6814cc0b65fbc16ba11de575709b74b63f

Analysis

max time kernel
132s
max time network
139s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
18/10/2024, 04:47

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General

Target

2024-10-18_f437a9a376941fea4d1dbd2783b59b3e_cryptolocker.exe
Size

31KB
MD5

f437a9a376941fea4d1dbd2783b59b3e
SHA1

ecc3701f25de2522be76dda0401937d6b64fbbe7
SHA256

c2840215b8ca72cd4beb01f7aa223e6814cc0b65fbc16ba11de575709b74b63f
SHA512

52e5013580d3a2fffb275ebeb887ba871a97e071c34d27366cabb1a797937ca24c7f780043a66f54371b6d4696f73d86cb339f14ddb51d9cdb4a4dc8c3662b62
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9R9U1gpPQZ:b7o/2n1TCraU6GD1a4Xt9R21TZ

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2832	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2984	2024-10-18_f437a9a376941fea4d1dbd2783b59b3e_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-18_f437a9a376941fea4d1dbd2783b59b3e_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rewok.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2984	2024-10-18_f437a9a376941fea4d1dbd2783b59b3e_cryptolocker.exe
2832	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 2832	2984	2024-10-18_f437a9a376941fea4d1dbd2783b59b3e_cryptolocker.exe	30
PID 2984 wrote to memory of 2832	2984	2024-10-18_f437a9a376941fea4d1dbd2783b59b3e_cryptolocker.exe	30
PID 2984 wrote to memory of 2832	2984	2024-10-18_f437a9a376941fea4d1dbd2783b59b3e_cryptolocker.exe	30
PID 2984 wrote to memory of 2832	2984	2024-10-18_f437a9a376941fea4d1dbd2783b59b3e_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-18_f437a9a376941fea4d1dbd2783b59b3e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-18_f437a9a376941fea4d1dbd2783b59b3e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - 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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
31KB

MD5
b37f85ae595511e2f8b1c205145dbc40

SHA1
c90db76f7954810b09fdc74cf6fc0530f71ace70

SHA256
5a870425cea718c51b1fec78960fe725b5500a11369efcb0ef2fe41c74b60a0e

SHA512
53c439586568c3b64a395afdece607502d8a78a23921780416e622f857ceaa96ba906ebf9bdec36cbacac65f103bc7e128ac894951267b4b6147184b7537f3cb

Download Submit
memory/2832-23-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2984-0-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2984-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2984-8-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download