5cb6d429091d785afade17ca9b0039d24c3f8056e58eb490f5168f54b33dd6c7

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15/10/2024, 06:25

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General

Target

2024-10-15_85ebe5006ffcf4b92399c9322781b4f5_cryptolocker.exe
Size

41KB
MD5

85ebe5006ffcf4b92399c9322781b4f5
SHA1

4485cbe91eacdbbbae63274c62226bdfead298b2
SHA256

5cb6d429091d785afade17ca9b0039d24c3f8056e58eb490f5168f54b33dd6c7
SHA512

124236e60dbbaf429d8151b73bca283056b41ded6969c4e18f225868d2029f5e0bc0f37a23a61cd46987896b98519380736c521241e1240c59113015676a71b3
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYX5L6:qDdFJy3QMOtEvwDpjjWMl7Ty6

Score

7^/10

discovery upx

Malware Config

Signatures

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2024-10-15_85ebe5006ffcf4b92399c9322781b4f5_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4040	asih.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2248-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000c000000023b21-13.dat	upx
behavioral2/memory/2248-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4040-27-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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	2024-10-15_85ebe5006ffcf4b92399c9322781b4f5_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 4040	2248	2024-10-15_85ebe5006ffcf4b92399c9322781b4f5_cryptolocker.exe	84
PID 2248 wrote to memory of 4040	2248	2024-10-15_85ebe5006ffcf4b92399c9322781b4f5_cryptolocker.exe	84
PID 2248 wrote to memory of 4040	2248	2024-10-15_85ebe5006ffcf4b92399c9322781b4f5_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-10-15_85ebe5006ffcf4b92399c9322781b4f5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-15_85ebe5006ffcf4b92399c9322781b4f5_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4040

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
41KB

MD5
710f463092fa91669cec5501bb59bf53

SHA1
38c6fb5243fe5b0319744b4ec20eb5eb0c8a1c8a

SHA256
6824514566cd55c2f9eb83fb5c8cdaf41498a32f649a7bf71064ac578b5407d2

SHA512
3df301f498df3e558dee8b8e34b4a0273c2d2e61ae35db02b072a9ca309242a81eb02a4f2810feaee71123ed3c8d097e588880efb06acf5a4ce21a6d3b1fae4f

Download Submit
memory/2248-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2248-1-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/2248-2-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/2248-3-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/2248-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4040-21-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/4040-20-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/4040-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download