da0e41d416669558afdd0fb93b2e0949ca15a8cf887202ed1fe2bb879fd737fa

Analysis

max time kernel
101s
max time network
19s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
16/08/2024, 20:36

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General

Target

$0/uninstall.exe
Size

82KB
MD5

66ca9b50a89726e4bc5d2f00ceb0e27f
SHA1

8e0a04d571df697d2af94070111f3c93185ce78d
SHA256

d7d0c63a6588746c822026e52cf1d0d47369c6ded8169a8c3e5548f017df2a6f
SHA512

5274107a75072c76bdb05b05a1e78663acc4918610b56d74ec023e74e46d04a65d418e4a51167a7afe471e2a37ccf5dcd969d8c4e84c6bbf5481d57e77ebce2d
SSDEEP

1536:YEkjY1zy214Qay0DGkJ7qAELVigJ0cpolwUMH55Lo42/D1W:XkjAJ4dDGkJ+AI0wwwUMH59oP/M

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2328	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
2388	uninstall.exe
2328	Au_.exe
2328	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
behavioral7/files/0x002f0000000186b7-2.dat	nsis_installer_1

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2328	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2328	2388	uninstall.exe	29
PID 2388 wrote to memory of 2328	2388	uninstall.exe	29
PID 2388 wrote to memory of 2328	2388	uninstall.exe	29
PID 2388 wrote to memory of 2328	2388	uninstall.exe	29

C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2388
- 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
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2328

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\nsz3860.tmp\ioSpecial.ini

Filesize
607B

MD5
426850582b9e434bf9bf09925822298c

SHA1
5b08c6baf1f739b5a13ac4d2d43eb529cff3aaf6

SHA256
cb4e49c1d189f2693157e56a91c59657bcd17c49e126dc1ea0ea30bf3d0dff87

SHA512
dfd354750995327b26817a9da777e8b4581032a4e039340b583bce7bf7ab1a1c70d4c608c6cf7fa73cfeb13117625dd9f6858c1b47712b2aafc71914b4ec0f11

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\Users\Admin\AppData\Local\Temp\nsz3860.tmp\InstallOptions.dll

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

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\Users\Admin\AppData\Local\Temp\nsz3860.tmp\System.dll

Filesize
10KB

MD5
fe24766ba314f620d57d0cf7339103c0

SHA1
8641545f03f03ff07485d6ec4d7b41cbb898c269

SHA256
802ef71440f662f456bed6283a5ff78066af016897fe6bfd29cac6edc2967bbd

SHA512
60d36959895cebf29c4e7713e6d414980139c7aa4ed1c8c96fefb672c1263af0ce909fb409534355895649c0e8056635112efb0da2ba05694446aec2ca77e2e3

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

Filesize
82KB

MD5
66ca9b50a89726e4bc5d2f00ceb0e27f

SHA1
8e0a04d571df697d2af94070111f3c93185ce78d

SHA256
d7d0c63a6588746c822026e52cf1d0d47369c6ded8169a8c3e5548f017df2a6f

SHA512
5274107a75072c76bdb05b05a1e78663acc4918610b56d74ec023e74e46d04a65d418e4a51167a7afe471e2a37ccf5dcd969d8c4e84c6bbf5481d57e77ebce2d

Download Submit