c8a469f3405b3ba62d4251f863e04f810d475aca7e56d2c4db7aff2e1d87b805

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
27-07-2024 10:37

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General

Target

Uninstall.exe
Size

88KB
MD5

2d06f4000af9632594d69f771b24cc99
SHA1

dceaddf53206b8168386971ea0c0e2d3dfa1a4a7
SHA256

b89c51188eaabe830f78c8ae021f50b4a2962360d7bdd260e9b967ad91945dd0
SHA512

3c451cc8f72303920097235c5fb42229194450b95fbf57d8d391ee3412a77374c5d3cd53138335b50250e33a1c7c4fd200378dade7954b2500445e4b7631a95e
SSDEEP

1536:8pgpHzb9dZVX9fHMvG0D3XJZ5abZyNTXpUnax++HE63ttNESPA6C/0qC:KgXdZt9P6D3XJ3aELpIcE6rF60qC

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1076	Au_.exe

Loads dropped DLL 5 IoCs

pid	Process
2944	Uninstall.exe
1076	Au_.exe
1076	Au_.exe
1076	Au_.exe
1076	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
behavioral23/files/0x0005000000019279-5.dat	nsis_installer_1
behavioral23/files/0x0005000000019279-5.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1076	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 1076	2944	Uninstall.exe	30
PID 2944 wrote to memory of 1076	2944	Uninstall.exe	30
PID 2944 wrote to memory of 1076	2944	Uninstall.exe	30
PID 2944 wrote to memory of 1076	2944	Uninstall.exe	30
PID 2944 wrote to memory of 1076	2944	Uninstall.exe	30
PID 2944 wrote to memory of 1076	2944	Uninstall.exe	30
PID 2944 wrote to memory of 1076	2944	Uninstall.exe	30

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:2944
- 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:1076

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\Temp\nst234A.tmp\ioSpecial.ini

Filesize
568B

MD5
b19e6d02817a2f478e641db97740e4ca

SHA1
e840b3605c70fc77eae89535a0b741eea5e5e9d2

SHA256
f00cb0795777327bdaa2ef94b625d88cf61a9f6df10ab1d91166fe5757209c8f

SHA512
1fa8c227540d103766aacca6c6c26b3a86bfad5f897c029bd7d001845edebb6eeb637cd2e5c58065af8424ac70d915a3a61e7798af8dd49569c3bf4ac509cc64

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

Filesize
88KB

MD5
2d06f4000af9632594d69f771b24cc99

SHA1
dceaddf53206b8168386971ea0c0e2d3dfa1a4a7

SHA256
b89c51188eaabe830f78c8ae021f50b4a2962360d7bdd260e9b967ad91945dd0

SHA512
3c451cc8f72303920097235c5fb42229194450b95fbf57d8d391ee3412a77374c5d3cd53138335b50250e33a1c7c4fd200378dade7954b2500445e4b7631a95e

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\Users\Admin\AppData\Local\Temp\nst234A.tmp\InstallOptions.dll

Filesize
14KB

MD5
eef9e469e8a30717974499f277d97e2a

SHA1
2d33c25984ebd9116beeb55cdde4c5c86c023e5d

SHA256
1f35bb6728237483c779005fc227e69fef51b0bafd32d15855d483948a337078

SHA512
d860132106a1c03dfa23f983b3c503f1216ac02f3d47833b96dfb333fb30bc8ab4d4fecd1f1f0a89f0c7f3586405461e2d53c26f282bb48970e549659b364b48

Download Submit