44b82bf7616d26c686962c4492dc05815fbba99b9e80b5a904f04b768da68390

Analysis

max time kernel
149s
max time network
153s
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, 20:27

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General

Target

2024-02-23_0c9beaea5252913bbcca6586394df56a_cryptolocker.exe
Size

98KB
MD5

0c9beaea5252913bbcca6586394df56a
SHA1

9138d14bcb061e9cdcd9599d56ac8cc9dadf279c
SHA256

44b82bf7616d26c686962c4492dc05815fbba99b9e80b5a904f04b768da68390
SHA512

53a9d60f6c17475911fc8d5c489442510b3080a9490bd940f99607a9b13b1ff92a1d3c4b0e39d3a7397ed9eaea7812a7458a0e93c845f02a8d5b649757288534
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCWnh:26a+2OtEvwDpjtzP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023216-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023216-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 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-1-5-21-3316742141-2240921845-2885234760-1000\Control Panel\International\Geo\Nation	2024-02-23_0c9beaea5252913bbcca6586394df56a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3700	asih.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 848 wrote to memory of 3700	848	2024-02-23_0c9beaea5252913bbcca6586394df56a_cryptolocker.exe	87
PID 848 wrote to memory of 3700	848	2024-02-23_0c9beaea5252913bbcca6586394df56a_cryptolocker.exe	87
PID 848 wrote to memory of 3700	848	2024-02-23_0c9beaea5252913bbcca6586394df56a_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-23_0c9beaea5252913bbcca6586394df56a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_0c9beaea5252913bbcca6586394df56a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:848
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3700

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\asih.exe

Filesize
99KB

MD5
a4e27234480432b745567936dca1754f

SHA1
c58b2643ef712e6e37126442ee1cf0658179129a

SHA256
d4ba5ad921285bc08255d9e058cb97f8b46b1f27f267985bc9ac797b8b694205

SHA512
802ae101bbe79b951114de188d8ca99e4d5738bff5ffe54c98a2f76f14f79e76995b4d086b36fb2ad63c1876ece7a1a553840ae6760040ed3eddbe19d61869e2

Download Submit
memory/848-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/848-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/848-2-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/3700-17-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3700-18-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download