af6bbab59c56d5088f97e2bc417100a0c0081d6e40020b5db342df47b60ffdd3

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08/10/2024, 23:55

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General

Target

Uninstall.exe
Size

87KB
MD5

ac3149c788837a0c992a16c97a5eaeee
SHA1

02ed08872f396b95bdbf59585684f8dd7db4afa7
SHA256

35e47a664caa4f41755a337c286b39cd68d0e7b9348144f222c77e4945e5c99c
SHA512

d7197e80cc88b21b109f2a044c546f8f43d69f16b875161e7b82d1d35e99907f8494341a33a18e75f08a1c3e973effc759bf186fc10bb7add98a7abb6a196605
SSDEEP

1536:0spe3RDckBV0DdkJOHR83d0cpdXwyNLIAW35pSkeVS9XaxIdPa6:0a1DdkJoR85pdXnLIA8p3eVS9XT

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4976	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
4976	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
4976	Au_.exe
4976	Au_.exe
4976	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	Au_.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Uninstall.exe

NSIS installer 1 IoCs

installer

resource	yara_rule
behavioral20/files/0x0009000000023ba9-3.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 4976	4412	Uninstall.exe	85
PID 4412 wrote to memory of 4976	4412	Uninstall.exe	85
PID 4412 wrote to memory of 4976	4412	Uninstall.exe	85

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4412
- 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⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4976

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\nsrA51A.tmp\InstallOptions.dll

Filesize
12KB

MD5
3c19f79ce11facc2fc4d3351dbb263e0

SHA1
17f4bf4b18ea7700f70ac7d825dc997be0d25f71

SHA256
cfaba712ad640ce2b4890005ffcf03ed9e2a18a6cf9075295f3aaea1478896b9

SHA512
05c9ac861e4fed610171fcb5fad40abc30cbf90e9c7cb13c758f52cdff568af0fdd6af968db4fb143a748c77f21c353c7cffea28cbcbd2ad17157038ab490273

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C:\Users\Admin\AppData\Local\Temp\nsrA51A.tmp\System.dll

Filesize
10KB

MD5
725145e8caa39635cab9899c47c72eda

SHA1
30478c907551bd920bf359638b091fc5c10b5a53

SHA256
1759e4f7777fb8c9ed356a7d4dc237a90e0760061685d44ea02d40ca9e359ceb

SHA512
de31286ea10321f762a3b6e7c6c82177d5b6f45a82adc936fcbbc23105708cbbbec903ba94ba94e7723e80f1828393e5395ef575b37136b19de7535e74e24547

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C:\Users\Admin\AppData\Local\Temp\nsrA51A.tmp\ioSpecial.ini

Filesize
610B

MD5
63fb191eec7c6721e8aae50972a837ee

SHA1
fb4474ce554da9e75ad284f65934abfd5048f4c5

SHA256
b516c276de1230986590c0c6735b548835a25b0b223ff5ab885dd5f0d2eb66f4

SHA512
8fbb1f7a04bedb3553a70ed836c9eb25ef049c73aca4daa62e8021f2d89c1041cf15ad81039455343700ddd901980da49849da7e47f97da98cef0558ee926616

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C:\Users\Admin\AppData\Local\Temp\nsrA51A.tmp\nsisdt.dll

Filesize
5KB

MD5
df4795dfabe3bc9278a73d496cc4b40d

SHA1
2648ded47e29ecf3e1a1cc20c631e83caf566897

SHA256
2261027077f23c8dba6b72af28862832aaa059740d0f5634b46cabb14326dd10

SHA512
013d9712c3d699a7f41ab3e55931c9abb421fb2eda3542da5a4831ad2f073a1b0643120cc78147db0bfcd01df98ade3045ecb2f1e252fff1dc40be845e5ae303

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

Filesize
87KB

MD5
ac3149c788837a0c992a16c97a5eaeee

SHA1
02ed08872f396b95bdbf59585684f8dd7db4afa7

SHA256
35e47a664caa4f41755a337c286b39cd68d0e7b9348144f222c77e4945e5c99c

SHA512
d7197e80cc88b21b109f2a044c546f8f43d69f16b875161e7b82d1d35e99907f8494341a33a18e75f08a1c3e973effc759bf186fc10bb7add98a7abb6a196605

Download Submit