9f256187849ed48633bad4cf3167a792ef03ad3cea253810d0be5899b54e0589

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/10/2024, 11:38

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General

Target

$0/uninstall.exe
Size

83KB
MD5

9ad10639431cdf03fad57eaa6fa3d63a
SHA1

0b079e322ad7ef5eb440100c359c1053de4f3ca6
SHA256

a03ddf5f1b2f8b2160f6923d5f583aec30b0cc5c6ead3a77f833294f12474768
SHA512

a1c15dc9863830c649fc0071fd3a62d332986bcfff2397235bf97e2b478f4e0f057c318664828ba1e98ed3b0b004bbd9454815f41cbc0ba4fc8d09efd4634512
SSDEEP

1536:EEkjY1zy214Qay0DGkJ7qAELVigJPT4cpw/1q792sX7Ia12/DbJM:TkjAJ4dDGkJ+AI0io1qRka0/J

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
840	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
2996	uninstall.exe
840	Au_.exe
840	Au_.exe
840	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
behavioral3/files/0x0005000000019274-2.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2996 wrote to memory of 840	2996	uninstall.exe	30
PID 2996 wrote to memory of 840	2996	uninstall.exe	30
PID 2996 wrote to memory of 840	2996	uninstall.exe	30
PID 2996 wrote to memory of 840	2996	uninstall.exe	30

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:2996
- 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:840

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\nsjED6C.tmp\ioSpecial.ini

Filesize
619B

MD5
baf98ede48cfddaab3fa32da5834a55d

SHA1
9dd0db6b4921898e77f144a80e3bd3234bde9255

SHA256
57a1fc673caaf1f26716aef702d293e8654512ca8c09d0111e76548fe2349b40

SHA512
c5ab4d73fec3709a72af55eba54f9786fe37ac0bdc0b7e0d6aadf05db3a552952e8bdeb703484ff2bf8d5e93265c5cd7afd84a2985542d983d11b80b5ab1f0c7

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsjED6C.tmp\ioSpecial.ini

Filesize
632B

MD5
e8f877e0bf44cf50e7c73f6343854a74

SHA1
d1d9d594074d922703279a4f366b12ffca92772d

SHA256
37b03cde0d9623b3e2b1b9faf0081364083bf9ef97b74ecea1eead0280dcecfd

SHA512
16e19d76f659955779d2629d98ae77fbfb1bfd33dfe699ad0ee42ac7237494199cd924ba0c61c16edc1dcbb150f5f8d75f7e519e03c134498be843fa215a23e5

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsjED6C.tmp\ioSpecial.ini

Filesize
572B

MD5
a24bf0dad1416a19cdc2b0eb4d63e9a7

SHA1
790bbeb16d905627081c2e2a4602e8b63d3afc4d

SHA256
9951bbac1a08c3aacd8bceaab139afa63e8eb18cd4c05ae2daa8b2bf2a889bd1

SHA512
b8939ba491bb80549f3a70d11503cfcee0b79c148760b7d6eabd114f551a9d75fef59787ed0493ad6aceabfee8fc867f54aa5c75a51aa19ef3b35943ef9060e4

Download Submit
\Users\Admin\AppData\Local\Temp\nsjED6C.tmp\InstallOptions.dll

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

Download Submit
\Users\Admin\AppData\Local\Temp\nsjED6C.tmp\System.dll

Filesize
10KB

MD5
fe24766ba314f620d57d0cf7339103c0

SHA1
8641545f03f03ff07485d6ec4d7b41cbb898c269

SHA256
802ef71440f662f456bed6283a5ff78066af016897fe6bfd29cac6edc2967bbd

SHA512
60d36959895cebf29c4e7713e6d414980139c7aa4ed1c8c96fefb672c1263af0ce909fb409534355895649c0e8056635112efb0da2ba05694446aec2ca77e2e3

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

Filesize
83KB

MD5
9ad10639431cdf03fad57eaa6fa3d63a

SHA1
0b079e322ad7ef5eb440100c359c1053de4f3ca6

SHA256
a03ddf5f1b2f8b2160f6923d5f583aec30b0cc5c6ead3a77f833294f12474768

SHA512
a1c15dc9863830c649fc0071fd3a62d332986bcfff2397235bf97e2b478f4e0f057c318664828ba1e98ed3b0b004bbd9454815f41cbc0ba4fc8d09efd4634512

Download Submit