b5457332bb2f8d2d2658b2db158f0ed12af8e4502c76e0ac717f7313d13fd8ba

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29/09/2024, 05:10

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General

Target

$0/uninstall.exe
Size

82KB
MD5

c78dc19bab9bcb490d031ccca4bdf853
SHA1

f40960a41ff93fdcad2793f36fb5437db93b120c
SHA256

a743fab26fad94ba571933471af4685660a80c73ef4a86ea276aebcc197b2600
SHA512

da9f21b7eb01b3350614ee912f98389e209e0ce0afed08fdd13bea153f28510a2aeb468c10bf3317e0fe2716af9d67702996a8cbf18eb3ce1435be68c722abca
SSDEEP

1536:jEkjY1zy214Qay0DGkJ7qAELVigJxf7DcptJgNfKeQ2/DRkAi:AkjAJ4dDGkJ+AI0JXJGKeH/u

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3968	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
3968	Au_.exe
3968	Au_.exe
3968	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/0x000700000002345a-3.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4604 wrote to memory of 3968	4604	uninstall.exe	84
PID 4604 wrote to memory of 3968	4604	uninstall.exe	84
PID 4604 wrote to memory of 3968	4604	uninstall.exe	84

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:4604
- 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:3968

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\nsu5EBB.tmp\InstallOptions.dll

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

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C:\Users\Admin\AppData\Local\Temp\nsu5EBB.tmp\System.dll

Filesize
10KB

MD5
fe24766ba314f620d57d0cf7339103c0

SHA1
8641545f03f03ff07485d6ec4d7b41cbb898c269

SHA256
802ef71440f662f456bed6283a5ff78066af016897fe6bfd29cac6edc2967bbd

SHA512
60d36959895cebf29c4e7713e6d414980139c7aa4ed1c8c96fefb672c1263af0ce909fb409534355895649c0e8056635112efb0da2ba05694446aec2ca77e2e3

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C:\Users\Admin\AppData\Local\Temp\nsu5EBB.tmp\ioSpecial.ini

Filesize
610B

MD5
d2f956b56a909876451bccde9effee14

SHA1
dad316d2643638a20941d4d1792c6657d5430628

SHA256
97e18c21dcc9828faacf6424e174895835cab4d103db84fe4aeef36eb80f1671

SHA512
3b55187c7174cfea488b144d2fd79195c39669f0776ca596c263b2edc89cb853117ac3b8c73f2cb7b633903b0bb5e17e40097d8325b9d6f60e08d31492bf95cd

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C:\Users\Admin\AppData\Local\Temp\nsu5EBB.tmp\ioSpecial.ini

Filesize
566B

MD5
92bffb9bb650826c1ae55de3c34f8e27

SHA1
a6bd00f4dbf3912c25707a14a1a02879f0f6e3cf

SHA256
144c099fea105d89b4ac4f78df561bf12208484847efabbcb83d8a6d8b855d63

SHA512
b5232c89c9950051036e210028647c03c1a26abfc3eccc47ee6c6b4df5e533530e6061cd517d14d7aa8a5906e0cbabc05dd9ca9de7d2342d8a312ddebc96a231

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

Filesize
82KB

MD5
c78dc19bab9bcb490d031ccca4bdf853

SHA1
f40960a41ff93fdcad2793f36fb5437db93b120c

SHA256
a743fab26fad94ba571933471af4685660a80c73ef4a86ea276aebcc197b2600

SHA512
da9f21b7eb01b3350614ee912f98389e209e0ce0afed08fdd13bea153f28510a2aeb468c10bf3317e0fe2716af9d67702996a8cbf18eb3ce1435be68c722abca

Download Submit