5eed90975cecd38200c22efa511e22d16445ca0b2fb96e007eece08797eac4d9

Analysis

max time kernel
88s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
28/03/2024, 19:50

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General

Target

2024-03-28_3d9d9edaec8aa151dbda7af2f90d12a2_cryptolocker.exe
Size

76KB
MD5

3d9d9edaec8aa151dbda7af2f90d12a2
SHA1

925c643acbeeaaeb8925cf97ad604d1617a7d692
SHA256

5eed90975cecd38200c22efa511e22d16445ca0b2fb96e007eece08797eac4d9
SHA512

6f412eb06f52a367874685774c24c0d3b7333aa12e3817138f3ecfb9409130559ab24bf708cea65276f24ba802e185525b2521b7cc3d4664e4a7a35a302f0443
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KuA5r:ZVxkGOtEvwDpjcas

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0010000000023153-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-03-28_3d9d9edaec8aa151dbda7af2f90d12a2_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
1584	misid.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3724 wrote to memory of 1584	3724	2024-03-28_3d9d9edaec8aa151dbda7af2f90d12a2_cryptolocker.exe	85
PID 3724 wrote to memory of 1584	3724	2024-03-28_3d9d9edaec8aa151dbda7af2f90d12a2_cryptolocker.exe	85
PID 3724 wrote to memory of 1584	3724	2024-03-28_3d9d9edaec8aa151dbda7af2f90d12a2_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-03-28_3d9d9edaec8aa151dbda7af2f90d12a2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_3d9d9edaec8aa151dbda7af2f90d12a2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3724
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1584

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
76KB

MD5
e6dc7910165cf5ef33b4837e8316f0c6

SHA1
afcc14fc8c69dfd237ad15050b16a8e9d3b08a49

SHA256
48e492d09cc99ecdd64374afa3f95981324725e9df49c972e9cfcf6d26d7ed9a

SHA512
f84d61bba2cbb6b028605644b5f369d9c9ab83678394daa4bc11ff7c3e4c8460d1fe66344bc06fa7815e99410eea8f1a7419ad615a6cde6395486d5573c70547

Download Submit
memory/1584-18-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1584-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1584-56-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3724-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3724-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3724-2-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download