b4b7d2a2c7d37a0e58d4459f688f498eefecb2b8be0db9ee808c95ecd52cbb82

Analysis

max time kernel
92s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19/11/2024, 18:23

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General

Target

b4b7d2a2c7d37a0e58d4459f688f498eefecb2b8be0db9ee808c95ecd52cbb82.exe
Size

558KB
MD5

c65d4758015f3e3428b96dcd37cf7138
SHA1

407f4c7a1d548b45cf7dfbe5babc7f41ab787740
SHA256

b4b7d2a2c7d37a0e58d4459f688f498eefecb2b8be0db9ee808c95ecd52cbb82
SHA512

9aec87bf42d018a232be1bb1b8a83b1c032f276d6d0290b4eaae0f1c3db0c052631a2ad9158f015f933574d04d2a6b7fe55fd592eba49129473f1da7dbb36c36
SSDEEP

12288:K6Wq4aaE6KwyF5L0Y2D1PqL9QoPyW1+Ej/TqVde8G7g:othEVaPqLGo6IbEdjKg

Score

7^/10

discovery upx

Malware Config

Signatures

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\parterres.vbs	parterres.exe

Executes dropped EXE 1 IoCs

pid	Process
1700	parterres.exe

AutoIT Executable 3 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/1700-17-0x0000000000400000-0x00000000004D6000-memory.dmp	autoit_exe
behavioral2/memory/3188-19-0x0000000000400000-0x00000000004D6000-memory.dmp	autoit_exe
behavioral2/memory/1700-36-0x0000000000400000-0x00000000004D6000-memory.dmp	autoit_exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3188-0-0x0000000000400000-0x00000000004D6000-memory.dmp	upx
behavioral2/files/0x0002000000022af2-15.dat	upx
behavioral2/memory/1700-17-0x0000000000400000-0x00000000004D6000-memory.dmp	upx
behavioral2/memory/3188-19-0x0000000000400000-0x00000000004D6000-memory.dmp	upx
behavioral2/memory/1700-36-0x0000000000400000-0x00000000004D6000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2904	1700	WerFault.exe	86

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	b4b7d2a2c7d37a0e58d4459f688f498eefecb2b8be0db9ee808c95ecd52cbb82.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	parterres.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3188 wrote to memory of 1700	3188	b4b7d2a2c7d37a0e58d4459f688f498eefecb2b8be0db9ee808c95ecd52cbb82.exe	86
PID 3188 wrote to memory of 1700	3188	b4b7d2a2c7d37a0e58d4459f688f498eefecb2b8be0db9ee808c95ecd52cbb82.exe	86
PID 3188 wrote to memory of 1700	3188	b4b7d2a2c7d37a0e58d4459f688f498eefecb2b8be0db9ee808c95ecd52cbb82.exe	86
PID 1700 wrote to memory of 232	1700	parterres.exe	87
PID 1700 wrote to memory of 232	1700	parterres.exe	87
PID 1700 wrote to memory of 232	1700	parterres.exe	87

C:\Users\Admin\AppData\Local\Temp\b4b7d2a2c7d37a0e58d4459f688f498eefecb2b8be0db9ee808c95ecd52cbb82.exe
"C:\Users\Admin\AppData\Local\Temp\b4b7d2a2c7d37a0e58d4459f688f498eefecb2b8be0db9ee808c95ecd52cbb82.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3188
- C:\Users\Admin\AppData\Local\colliquefaction\parterres.exe
  "C:\Users\Admin\AppData\Local\Temp\b4b7d2a2c7d37a0e58d4459f688f498eefecb2b8be0db9ee808c95ecd52cbb82.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1700
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\b4b7d2a2c7d37a0e58d4459f688f498eefecb2b8be0db9ee808c95ecd52cbb82.exe"
    3⤵
    PID:232
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1700 -s 744
    3⤵
    - Program crash
    PID:2904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1700 -ip 1700
1⤵
PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\Local\colliquefaction\parterres.exe

Filesize
558KB

MD5
c65d4758015f3e3428b96dcd37cf7138

SHA1
407f4c7a1d548b45cf7dfbe5babc7f41ab787740

SHA256
b4b7d2a2c7d37a0e58d4459f688f498eefecb2b8be0db9ee808c95ecd52cbb82

SHA512
9aec87bf42d018a232be1bb1b8a83b1c032f276d6d0290b4eaae0f1c3db0c052631a2ad9158f015f933574d04d2a6b7fe55fd592eba49129473f1da7dbb36c36

Download Submit
memory/1700-17-0x0000000000400000-0x00000000004D6000-memory.dmp

Filesize
856KB

Download
memory/1700-33-0x0000000002A50000-0x0000000002B50000-memory.dmp

Filesize
1024KB

Download
memory/1700-36-0x0000000000400000-0x00000000004D6000-memory.dmp

Filesize
856KB

Download
memory/3188-0-0x0000000000400000-0x00000000004D6000-memory.dmp

Filesize
856KB

Download
memory/3188-12-0x00000000032E0000-0x00000000033E0000-memory.dmp

Filesize
1024KB

Download
memory/3188-19-0x0000000000400000-0x00000000004D6000-memory.dmp

Filesize
856KB

Download