0e6fc77a72dd0b4c8f8fe7607c92eac7cf5b0d607c9904e09d9fb1b2128a2e51

Analysis

max time kernel
148s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-11-2024 08:01

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General

Target

start-main/ptihjawdthas.exe
Size

29KB
MD5

3ace4cb9af0f0a2788212b3ec9dd4a4e
SHA1

2914bd74b5553f5f4dbd5f7b23bc00d04a2c77cb
SHA256

121bfcb759e561bca3f63777498646c80d030a92dac5a27c7c9cc8f5581e672e
SHA512

76ecc354b1fb5bf93f18bbe9f85401ef40e0826f7eea73a0cb5afda5d69ec384a459c07b6cc2386176888978d2dbb9bac9360e249114c59799de0984bbba5c56
SSDEEP

384:EhEy+hzv91UqVY8+JppEhKe+Ej7sI4GSFdX9NAb/QX22r5A/w/o0el7xI:IEy+hT91UqVY8+XpEh6CMs7gx/o17

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

ptihjawdthas.exeservice.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	ptihjawdthas.exe
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	service.exe

Drops startup file 2 IoCs

Processes:

ptihjawdthas.exeservice.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\service.exe	ptihjawdthas.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\service.exe	service.exe

Executes dropped EXE 1 IoCs

Processes:

service.exe

pid	Process
1668	service.exe

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 6 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

Processes:

ptihjawdthas.execmd.exeschtasks.exeservice.execmd.exeschtasks.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ptihjawdthas.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	service.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exeschtasks.exe

pid	Process
1252	schtasks.exe
3140	schtasks.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

ptihjawdthas.execmd.exeservice.execmd.exe

description	pid	Process	procid_target
PID 1924 wrote to memory of 2168	1924	ptihjawdthas.exe	84
PID 1924 wrote to memory of 2168	1924	ptihjawdthas.exe	84
PID 1924 wrote to memory of 2168	1924	ptihjawdthas.exe	84
PID 2168 wrote to memory of 1252	2168	cmd.exe	87
PID 2168 wrote to memory of 1252	2168	cmd.exe	87
PID 2168 wrote to memory of 1252	2168	cmd.exe	87
PID 1668 wrote to memory of 2432	1668	service.exe	97
PID 1668 wrote to memory of 2432	1668	service.exe	97
PID 1668 wrote to memory of 2432	1668	service.exe	97
PID 2432 wrote to memory of 3140	2432	cmd.exe	99
PID 2432 wrote to memory of 3140	2432	cmd.exe	99
PID 2432 wrote to memory of 3140	2432	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\start-main\ptihjawdthas.exe
"C:\Users\Admin\AppData\Local\Temp\start-main\ptihjawdthas.exe"
1⤵
- Checks computer location settings
- Drops startup file
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C schtasks /create /tn WinApp /tr %APPDATA%\service.exe /st 00:00 /du 9999:59 /sc daily /ri 1 /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2168
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn WinApp /tr C:\Users\Admin\AppData\Roaming\service.exe /st 00:00 /du 9999:59 /sc daily /ri 1 /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1252

C:\Users\Admin\AppData\Roaming\service.exe
C:\Users\Admin\AppData\Roaming\service.exe
1⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C schtasks /create /tn WinApp /tr %APPDATA%\service.exe /st 00:00 /du 9999:59 /sc daily /ri 1 /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2432
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn WinApp /tr C:\Users\Admin\AppData\Roaming\service.exe /st 00:00 /du 9999:59 /sc daily /ri 1 /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3140

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\service.exe

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
C:\Users\Admin\AppData\Roaming\service.exe

Filesize
29KB

MD5
3ace4cb9af0f0a2788212b3ec9dd4a4e

SHA1
2914bd74b5553f5f4dbd5f7b23bc00d04a2c77cb

SHA256
121bfcb759e561bca3f63777498646c80d030a92dac5a27c7c9cc8f5581e672e

SHA512
76ecc354b1fb5bf93f18bbe9f85401ef40e0826f7eea73a0cb5afda5d69ec384a459c07b6cc2386176888978d2dbb9bac9360e249114c59799de0984bbba5c56

Download Submit
memory/1668-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1924-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download