b92e4cc39bfef260d8c0a13e99e2bad451a933ed838824513b904efee0a12db0

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2024, 03:38

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General

Target

2024-10-12_5f067313c1c4859ed2bd01534257ba41_cryptolocker.exe
Size

90KB
MD5

5f067313c1c4859ed2bd01534257ba41
SHA1

f0fee24744298d2c050d19e6989d99f00cd5c203
SHA256

b92e4cc39bfef260d8c0a13e99e2bad451a933ed838824513b904efee0a12db0
SHA512

01bcdc7854f25d746582f96d138e84ec29ba0d9852d459035f1a2d6537c7297957df1774a9138b6eb3d0d43061e51fb2e430f3868131df65eb0c26c508ae9c2d
SSDEEP

1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAA/O:n6a+1SEOtEvwDpjYYvQd2PN

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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2024-10-12_5f067313c1c4859ed2bd01534257ba41_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4680	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1508-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000b000000023b85-13.dat	upx
behavioral2/memory/1508-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4680-26-0x0000000000500000-0x0000000000510000-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	2024-10-12_5f067313c1c4859ed2bd01534257ba41_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 1508 wrote to memory of 4680	1508	2024-10-12_5f067313c1c4859ed2bd01534257ba41_cryptolocker.exe	85
PID 1508 wrote to memory of 4680	1508	2024-10-12_5f067313c1c4859ed2bd01534257ba41_cryptolocker.exe	85
PID 1508 wrote to memory of 4680	1508	2024-10-12_5f067313c1c4859ed2bd01534257ba41_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-12_5f067313c1c4859ed2bd01534257ba41_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_5f067313c1c4859ed2bd01534257ba41_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1508
- 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:4680

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
91KB

MD5
6789d4c4978f97a4ac4a2784b86c605c

SHA1
fe79400f22446a1e594adb69920665275c9a3858

SHA256
ddcaa116b5fdf656705e7f63dd06ce6da739ce2fa9a06d368452fb30700f7546

SHA512
3a22314deb2a9fefe2f39639e95f502f044b3735467a703d6f69729a17e7f76e312a210f7235ecc2f871db1de69703a82ef84a4a626c729cd606dc8583ea0725

Download Submit
memory/1508-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1508-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/1508-2-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/1508-3-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/1508-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4680-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4680-21-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4680-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download