bd1d194b4c6082ea7997450f3c54f792a7415480ffef74ecc63e168f3f63ad2f

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-09-2024 12:10

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General

Target

2024-09-05_7eea20a4bbf07902227867c7560dfc04_cryptolocker.exe
Size

90KB
MD5

7eea20a4bbf07902227867c7560dfc04
SHA1

bbc6ec0a06e93f42a974bb8006dd6688f59b4572
SHA256

bd1d194b4c6082ea7997450f3c54f792a7415480ffef74ecc63e168f3f63ad2f
SHA512

94761764ab817dfa1bbd6e0d1f2abc8470610a8a001d6efd3e490756a8647fe293df349b1e59889b7eb73907e9477aaf607d5b02f496e69e3af504544a62c924
SSDEEP

1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAB:n6a+1SEOtEvwDpjYYvQd2PB

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	2024-09-05_7eea20a4bbf07902227867c7560dfc04_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2228	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2952-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0009000000023410-13.dat	upx
behavioral2/memory/2952-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/2228-26-0x0000000000500000-0x0000000000510000-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	2024-09-05_7eea20a4bbf07902227867c7560dfc04_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 2952 wrote to memory of 2228	2952	2024-09-05_7eea20a4bbf07902227867c7560dfc04_cryptolocker.exe	84
PID 2952 wrote to memory of 2228	2952	2024-09-05_7eea20a4bbf07902227867c7560dfc04_cryptolocker.exe	84
PID 2952 wrote to memory of 2228	2952	2024-09-05_7eea20a4bbf07902227867c7560dfc04_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-05_7eea20a4bbf07902227867c7560dfc04_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_7eea20a4bbf07902227867c7560dfc04_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2952
- 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:2228

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

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Downloads

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

Filesize
90KB

MD5
9b10e5f3cea4e2e4d003988ac0f9adc8

SHA1
1aa3ebb3f30236209aa2dc8dd397c8efc236dbd3

SHA256
3108e35e01446917ce195bf2a302c85b438db7c9b7ff85efc0fe0a8b31824621

SHA512
54e30c8db5275b21de81284e7e9b96b2cad1b767d6825e2598233fa63dde59fe482bf2acb9c62d7e2cf7cc7b4bd23f370c3c7173eda7458b9d96ef200fda0762

Download Submit
memory/2228-20-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/2228-19-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download
memory/2228-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2952-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2952-1-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/2952-2-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/2952-3-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/2952-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download