94906c5bcc52a903fa4c4c90d53f990f9563cb2103f31fac4e9cc151c587bb81

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 05:22

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General

Target

2024-09-19_07c1429bd55e332541676368ebe8a079_cryptolocker.exe
Size

70KB
MD5

07c1429bd55e332541676368ebe8a079
SHA1

b26156d93e7447bfb64362c1000e9d09db338e1e
SHA256

94906c5bcc52a903fa4c4c90d53f990f9563cb2103f31fac4e9cc151c587bb81
SHA512

646d77d234edd5d02b0e70fffbf7ed29f0547039c1338c51db389851607bb9aefad71ef780a1c80a80f1913326c6584cdeca6a32f71684ab5874ada0276ad365
SSDEEP

1536:quJu9cvMOtEvwDpjWYTjipvF2bx1PQAe5:78SEOtEvwDpjWYvQd2PU

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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	2024-09-19_07c1429bd55e332541676368ebe8a079_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4384	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4636-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x00090000000234ce-13.dat	upx
behavioral2/memory/4636-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/4384-26-0x0000000000500000-0x000000000050F000-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	2024-09-19_07c1429bd55e332541676368ebe8a079_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 4636 wrote to memory of 4384	4636	2024-09-19_07c1429bd55e332541676368ebe8a079_cryptolocker.exe	82
PID 4636 wrote to memory of 4384	4636	2024-09-19_07c1429bd55e332541676368ebe8a079_cryptolocker.exe	82
PID 4636 wrote to memory of 4384	4636	2024-09-19_07c1429bd55e332541676368ebe8a079_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_07c1429bd55e332541676368ebe8a079_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_07c1429bd55e332541676368ebe8a079_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4636
- 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:4384

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
70KB

MD5
926b38cc8b875cf711fffae4219c71dc

SHA1
071cd2cc746ba1860903f0e401188cda77fa20ba

SHA256
798482ffc7f3f03413200dea2e1a793f2f27d07e925c693ba13345e4f71bf527

SHA512
48c1765f24377e3b8168405ad18d8043f628d7ec15145823f89222c6e2cfafab9480511637c6baf30c66a9134f284c47afdf14c9ed8cb11800d7387b500d7b59

Download Submit
memory/4384-19-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4384-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/4384-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4636-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4636-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/4636-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/4636-3-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4636-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download