d3c519a9d24fdf5825c951a7cc02118b56ce5d617e2e9e954b502ecb59125f77

Analysis

max time kernel
148s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 12:48

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General

Target

2024-02-23_8df6b4eb06cd6ff9a1d9f6bcf1afb9c2_cryptolocker.exe
Size

38KB
MD5

8df6b4eb06cd6ff9a1d9f6bcf1afb9c2
SHA1

12635e7e57d1776dfca0917a2cad3f4033637fe7
SHA256

d3c519a9d24fdf5825c951a7cc02118b56ce5d617e2e9e954b502ecb59125f77
SHA512

75fbd25adc22dc7ad6d79f3f30a47579770d7820de0bd6e2ab5c1829fc7fb947e45eace013dd8d43f6ab7d677ed0e29346f780a9e7623f4bf2842db03975f3f7
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3NbF0Qk:bAvJCYOOvbRPDEgXrNekd7l94i3pF0x

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002321c-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-1-5-21-1414748551-1520717498-2956787782-1000\Control Panel\International\Geo\Nation	demka.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1414748551-1520717498-2956787782-1000\Control Panel\International\Geo\Nation	2024-02-23_8df6b4eb06cd6ff9a1d9f6bcf1afb9c2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2140	demka.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 1116 wrote to memory of 2140	1116	2024-02-23_8df6b4eb06cd6ff9a1d9f6bcf1afb9c2_cryptolocker.exe	88
PID 1116 wrote to memory of 2140	1116	2024-02-23_8df6b4eb06cd6ff9a1d9f6bcf1afb9c2_cryptolocker.exe	88
PID 1116 wrote to memory of 2140	1116	2024-02-23_8df6b4eb06cd6ff9a1d9f6bcf1afb9c2_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-23_8df6b4eb06cd6ff9a1d9f6bcf1afb9c2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_8df6b4eb06cd6ff9a1d9f6bcf1afb9c2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:2140

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

Replay Monitor

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Downloads

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

Filesize
38KB

MD5
1e2f34b5d9eca6c2a98c1889f0629a0d

SHA1
871ffa648167e12b1661c526b633501bdb90aba7

SHA256
5b2a860569a9962fd08c1c3e16d030578a2ab26fa48fc6ff212da2ea42d806da

SHA512
70df78c8cb3358ef7ba5e441b204a69cac3d14e1fd0ed86da655a0ceafe4dbe62c812a26a7513689c71b543b4a4cf7dc0fc198325c10ae90eb3cab01b870cf41

Download Submit
memory/1116-0-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/1116-1-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/1116-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2140-20-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download