ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb

Analysis

max time kernel
91s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
10/02/2023, 09:43

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General

Target

ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe
Size

1.4MB
MD5

939d6f6dd06eb826b27eda72f2ebe9c2
SHA1

2ca7b12d8473867b6667a463aec7588a41ef9803
SHA256

ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb
SHA512

c233dc59a41b1bec43b854d4f880efb3db4c0eeb0c5561b59a8a5e268824cc1a0e9f0dc5f4e98ef630606b2929c6784c97fbe79ac15cc5a6986f36beb2091201
SSDEEP

24576:O6/ZjTQHEFtxd/UdKir+X4vBrgQKf+VtHCi6uOUteZk:xy0Q81YtH1/e

Score

7^/10

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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4900 set thread context of 3376	4900	ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe	90

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
4572	schtasks.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3376	ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4900 wrote to memory of 4572	4900	ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe	88
PID 4900 wrote to memory of 4572	4900	ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe	88
PID 4900 wrote to memory of 4572	4900	ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe	88
PID 4900 wrote to memory of 3376	4900	ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe	90
PID 4900 wrote to memory of 3376	4900	ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe	90
PID 4900 wrote to memory of 3376	4900	ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe	90
PID 4900 wrote to memory of 3376	4900	ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe	90
PID 4900 wrote to memory of 3376	4900	ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe	90
PID 4900 wrote to memory of 3376	4900	ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe	90
PID 4900 wrote to memory of 3376	4900	ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe	90
PID 4900 wrote to memory of 3376	4900	ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe	90

C:\Users\Admin\AppData\Local\Temp\ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe
"C:\Users\Admin\AppData\Local\Temp\ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4900
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LthjWtJJuAygQr" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEF4.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4572
- C:\Users\Admin\AppData\Local\Temp\ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe
  "{path}"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3376

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ca03561b59f1ba61afadfb577241e8c4f6ba56c7912ea62b6db9fb32a52b36bb.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpEF4.tmp

Filesize
1KB

MD5
92c1f03c7784a3727a86dee59067548d

SHA1
600b185beef0d0b7a8b868e6e32745f44c7f047f

SHA256
6d89ccfb02f4c0793383ba1474c675ba459ec7f5a949ddca8cf2aff9e148ba38

SHA512
39b9d9fdc6b6e5ce74a28abf04af6418060434bf5adf992e08bb51465a6027436d784c98ad048f3108db05f486fefc5aa56c07197a6df9eb3e203b705548514b

Download Submit
memory/3376-141-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/4900-132-0x0000000000DF0000-0x0000000000F66000-memory.dmp

Filesize
1.5MB

Download
memory/4900-133-0x0000000005760000-0x00000000057FC000-memory.dmp

Filesize
624KB

Download
memory/4900-134-0x0000000005E20000-0x00000000063C4000-memory.dmp

Filesize
5.6MB

Download
memory/4900-135-0x0000000005910000-0x00000000059A2000-memory.dmp

Filesize
584KB

Download
memory/4900-136-0x0000000005870000-0x000000000587A000-memory.dmp

Filesize
40KB

Download
memory/4900-137-0x00000000059B0000-0x0000000005A06000-memory.dmp

Filesize
344KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads