21db0fda1eca852d06185e4bc4939c8979771045b9a2939ac1d45cb60d05a7d3

Analysis

max time kernel
91s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
28/09/2024, 11:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

arpwriteIni.1.exe
Size

441KB
MD5

8ffe154b25091cb5a8547eb4f56d112c
SHA1

e5a94d1b4c609bc7dc1e177e8dc54896a9d29369
SHA256

21db0fda1eca852d06185e4bc4939c8979771045b9a2939ac1d45cb60d05a7d3
SHA512

5e0524d5d802dcce8597144cd074968d51ea84c7ba113493e275baf2c765fa8bd8ba4d3d2f5af4697080e14aaec150409839d5ca5e4928861b150e8393066517
SSDEEP

12288:oFLN7pJxDibQF4ulRCX11Ab1i0n9aMzgK+nZL3eWq/U:MN7p/DjF7CHIkozgze8

Score

6^/10

discovery upx

Malware Config

Signatures

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\i:	arpwriteIni.1.exe
File opened (read-only)	\??\l:	arpwriteIni.1.exe
File opened (read-only)	\??\m:	arpwriteIni.1.exe
File opened (read-only)	\??\r:	arpwriteIni.1.exe
File opened (read-only)	\??\q:	arpwriteIni.1.exe
File opened (read-only)	\??\u:	arpwriteIni.1.exe
File opened (read-only)	\??\w:	arpwriteIni.1.exe
File opened (read-only)	\??\h:	arpwriteIni.1.exe
File opened (read-only)	\??\k:	arpwriteIni.1.exe
File opened (read-only)	\??\n:	arpwriteIni.1.exe
File opened (read-only)	\??\p:	arpwriteIni.1.exe
File opened (read-only)	\??\a:	arpwriteIni.1.exe
File opened (read-only)	\??\g:	arpwriteIni.1.exe
File opened (read-only)	\??\j:	arpwriteIni.1.exe
File opened (read-only)	\??\o:	arpwriteIni.1.exe
File opened (read-only)	\??\v:	arpwriteIni.1.exe
File opened (read-only)	\??\x:	arpwriteIni.1.exe
File opened (read-only)	\??\y:	arpwriteIni.1.exe
File opened (read-only)	\??\z:	arpwriteIni.1.exe
File opened (read-only)	\??\b:	arpwriteIni.1.exe
File opened (read-only)	\??\e:	arpwriteIni.1.exe
File opened (read-only)	\??\s:	arpwriteIni.1.exe
File opened (read-only)	\??\t:	arpwriteIni.1.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/2744-1-0x00000000011E0000-0x00000000012E9000-memory.dmp	autoit_exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2744-0-0x00000000011E0000-0x00000000012E9000-memory.dmp	upx
behavioral1/memory/2744-1-0x00000000011E0000-0x00000000012E9000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 3 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	arpwriteIni.1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2076	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2744	arpwriteIni.1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2744 wrote to memory of 2540	2744	arpwriteIni.1.exe	30
PID 2744 wrote to memory of 2540	2744	arpwriteIni.1.exe	30
PID 2744 wrote to memory of 2540	2744	arpwriteIni.1.exe	30
PID 2744 wrote to memory of 2540	2744	arpwriteIni.1.exe	30
PID 2540 wrote to memory of 2076	2540	cmd.exe	32
PID 2540 wrote to memory of 2076	2540	cmd.exe	32
PID 2540 wrote to memory of 2076	2540	cmd.exe	32
PID 2540 wrote to memory of 2076	2540	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\arpwriteIni.1.exe
"C:\Users\Admin\AppData\Local\Temp\arpwriteIni.1.exe"
1⤵
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2744
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ipconfig
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig
    3⤵
    - System Location Discovery: System Language Discovery
    - Gathers network information
    PID:2076

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

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

Loading Replay Monitor...

Downloads

memory/2744-0-0x00000000011E0000-0x00000000012E9000-memory.dmp

Filesize
1.0MB

Download
memory/2744-1-0x00000000011E0000-0x00000000012E9000-memory.dmp

Filesize
1.0MB

Download