28411261cb3f27081f910190d1c7742fb805185430af10131d5b39fd2e39c832

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
17-08-2024 15:21

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General

Target

Uninstall.exe
Size

79KB
MD5

a8e3e8c5ba3d8492edf5520eb24d64ba
SHA1

f0948f66fb8731d7ce3fc9fbf91eede9bc9df50b
SHA256

268bf5ffc58ec8a3671def0dfd886b4f22caab1313fc961583db77ad99c4b2d6
SHA512

2d8837b2a147f0f9860e3dccb1c2cd8d7911423b52e20b0140d0be00f3f61ddf7a16c680f7161fe29ccdfdaf8802ae69c2ad0facb5a5e4b8c4a36851fd55e698
SSDEEP

1536:RPx/CJAmx2/W5Ebnto4tmJ5gdLeAyN9OSyooRUQr+TSk34ae6S:Nx6UW6tpmJ5ceAFTrPae

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2060	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
2632	Uninstall.exe
2060	Au_.exe
2060	Au_.exe
2060	Au_.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 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	Uninstall.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral13/files/0x000400000001d3b7-2.dat	nsis_installer_1
behavioral13/files/0x000400000001d3b7-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2060	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2632 wrote to memory of 2060	2632	Uninstall.exe	31
PID 2632 wrote to memory of 2060	2632	Uninstall.exe	31
PID 2632 wrote to memory of 2060	2632	Uninstall.exe	31
PID 2632 wrote to memory of 2060	2632	Uninstall.exe	31
PID 2632 wrote to memory of 2060	2632	Uninstall.exe	31
PID 2632 wrote to memory of 2060	2632	Uninstall.exe	31
PID 2632 wrote to memory of 2060	2632	Uninstall.exe	31

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2632
- C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2060

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

\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
79KB

MD5
a8e3e8c5ba3d8492edf5520eb24d64ba

SHA1
f0948f66fb8731d7ce3fc9fbf91eede9bc9df50b

SHA256
268bf5ffc58ec8a3671def0dfd886b4f22caab1313fc961583db77ad99c4b2d6

SHA512
2d8837b2a147f0f9860e3dccb1c2cd8d7911423b52e20b0140d0be00f3f61ddf7a16c680f7161fe29ccdfdaf8802ae69c2ad0facb5a5e4b8c4a36851fd55e698

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