0da9b669104c0180d9b12356363b172c25b75139c83acf3f48c5616fb49c5cc1

Analysis

max time kernel
96s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08/09/2024, 23:16

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General

Target

$0/uninstall.exe
Size

78KB
MD5

19c84ed7c64b913e1ee81f43027632dc
SHA1

f5cf54cf9791b6c63aa7d93a91bc8336b0130338
SHA256

b9e4113b0e3e5cd78f847b5ff5fd3dd8ee18edee6f7c01310d8c7ea14d14e1ad
SHA512

4f6986c648dc8f1a8547c986db0d791ad774317004e5f5041cfd14ebd2d6953f021a3b0c529eb172df2f616e450c750eafeb183d5fcd1f35077b5f7f89fc02a6
SSDEEP

1536:PEkjY1zy214Qay0DGkJ7qAELVigJgFJTCcpDCxH9TplS1N/RA2/DK:8kjAJ4dDGkJ+AI0xFJTDuH9TpAN/RX/+

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4612	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
4612	Au_.exe
4612	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 1 IoCs

installer

resource	yara_rule
behavioral8/files/0x00070000000234ef-3.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 4612	2496	uninstall.exe	85
PID 2496 wrote to memory of 4612	2496	uninstall.exe	85
PID 2496 wrote to memory of 4612	2496	uninstall.exe	85

C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2496
- 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\$0\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4612

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\nsqA25B.tmp\InstallOptions.dll

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

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C:\Users\Admin\AppData\Local\Temp\nsqA25B.tmp\System.dll

Filesize
10KB

MD5
fe24766ba314f620d57d0cf7339103c0

SHA1
8641545f03f03ff07485d6ec4d7b41cbb898c269

SHA256
802ef71440f662f456bed6283a5ff78066af016897fe6bfd29cac6edc2967bbd

SHA512
60d36959895cebf29c4e7713e6d414980139c7aa4ed1c8c96fefb672c1263af0ce909fb409534355895649c0e8056635112efb0da2ba05694446aec2ca77e2e3

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C:\Users\Admin\AppData\Local\Temp\nsqA25B.tmp\ioSpecial.ini

Filesize
613B

MD5
4407076607effd967110da96f81a1b33

SHA1
a27c99921b956a015854bd4c404f597b76d1824b

SHA256
8bd7dbcba10ecfe654b9a72bf08bd51b3b4fbf9eaf532a8531eb1255eec4ae24

SHA512
8074a35aff9d8bdb6bc7a9bf024bd29d31133a00256a56cb8b911d1cfcb741801aa8ec4726768582ef97c03ee9304ec5237547d0cb30144a10156f0115de8f8b

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

Filesize
78KB

MD5
19c84ed7c64b913e1ee81f43027632dc

SHA1
f5cf54cf9791b6c63aa7d93a91bc8336b0130338

SHA256
b9e4113b0e3e5cd78f847b5ff5fd3dd8ee18edee6f7c01310d8c7ea14d14e1ad

SHA512
4f6986c648dc8f1a8547c986db0d791ad774317004e5f5041cfd14ebd2d6953f021a3b0c529eb172df2f616e450c750eafeb183d5fcd1f35077b5f7f89fc02a6

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