1257eb42368501130beff8430eb2ddfbf957838f94b1588d857c4ce17040c89c

Analysis

max time kernel
95s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2024, 15:07

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General

Target

uninstall.exe
Size

117KB
MD5

6ee2d080335ebf6fbf117fd0991cf7a5
SHA1

71d5bb5bd498cdd7412df66c0b87a270d3e334bb
SHA256

e96a352c41770da58451ceeac5d1427e171f584d2253032d9e53f2321634ecd6
SHA512

6b7f21a2076fe79832fb7801c3cafbea5c2984e4ae5546725063fdec8eeeb76426a8acfc706ad6aa1938e28b45ce1f88c7b0d23d2f6b03794bc146796dbc1f3c
SSDEEP

3072:811Z4TOoD2mJF6fxdvbOgCVuKgECeEqG9hBsfUQsNzQO:89/M6zDQnShBsNsNR

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4984	Au_.exe

Loads dropped DLL 1 IoCs

pid	Process
4984	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/0x0008000000023448-3.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4964 wrote to memory of 4984	4964	uninstall.exe	82
PID 4964 wrote to memory of 4984	4964	uninstall.exe	82
PID 4964 wrote to memory of 4984	4964	uninstall.exe	82

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:4964
- 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
  PID:4984

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\nsr8BB6.tmp\InstallOptions.dll

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

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C:\Users\Admin\AppData\Local\Temp\nsr8BB6.tmp\ioSpecial.ini

Filesize
571B

MD5
8397c941e24cab02db80b50934426731

SHA1
4ade3195bd4a21f0569ea51140453244ef6e6470

SHA256
c58e027a85d9b51a1fe5598a090a9963867b3aa5f5c367a07045102d10e9b72a

SHA512
7a9ddc30986fe73da25856e93c781a9fec3480f7094619d61d8601b70d1e2aabb34fa098dc7bed89c63c72a63fecb5bf074d803472dd6cbc043604ac8ac8bd7a

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

Filesize
117KB

MD5
6ee2d080335ebf6fbf117fd0991cf7a5

SHA1
71d5bb5bd498cdd7412df66c0b87a270d3e334bb

SHA256
e96a352c41770da58451ceeac5d1427e171f584d2253032d9e53f2321634ecd6

SHA512
6b7f21a2076fe79832fb7801c3cafbea5c2984e4ae5546725063fdec8eeeb76426a8acfc706ad6aa1938e28b45ce1f88c7b0d23d2f6b03794bc146796dbc1f3c

Download Submit