5d8f55a61d660d4339a14fa731d23130f734176da1158826460cee5ec1d52ad7

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
27/09/2024, 21:08

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General

Target

$0/uninstall.exe
Size

78KB
MD5

0f65a2e9a8956902e28aef4a59fa8a75
SHA1

2b4e2a96328bb152d4c0bb45b50da613c031342e
SHA256

d0f211c2bd631f83b2080ac758d91061725ff0e43191463cc515d2565d78b78d
SHA512

f4568869aa7738876480e969f5cf1dc818f7b766eb014f0e044c009d2dac6a13121bb308411d73e9aefef012c5e89249f83d45a98942c75ee2165ee2d7e17470
SSDEEP

1536:PEkjY1zy214Qay0DGkJ7qAELVigJ1cpub3RsagxxZ/RL32/DU:8kjAJ4dDGkJ+AI0f8hsagjZ/RLm/Q

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2116	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
1976	uninstall.exe
2116	Au_.exe
2116	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/0x0008000000018681-5.dat	nsis_installer_1

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2116	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 2116	1976	uninstall.exe	30
PID 1976 wrote to memory of 2116	1976	uninstall.exe	30
PID 1976 wrote to memory of 2116	1976	uninstall.exe	30
PID 1976 wrote to memory of 2116	1976	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:1976
- 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:2116

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\nsjBB26.tmp\ioSpecial.ini

Filesize
610B

MD5
34da422aa1f7978f54b7c34eafebdbbb

SHA1
3ddc4bd25749ace45a95aa61a05f6600a1c32660

SHA256
83944fa5441e04d448c0fb2502b4fe256c614febc23d846e2a715467b20a3444

SHA512
b75c55bd34636b6fba7ddacd5b8f0abb16dedbd07019ffd04eac83cbe3e362642be32224a136d9cd871918917006c8446f59e574d25c337c46ee60c6cf4055ae

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsjBB26.tmp\ioSpecial.ini

Filesize
623B

MD5
874fad4968c6358551629eb1f142bef7

SHA1
2f60d95540b65e75a66e47851fcb33fe5f1cdd8f

SHA256
8cd7b33e44919a63819320370dd95e35aea0b697f17876cdc42ca637bbd105b1

SHA512
5cf7e953ce043aa30801a57feabb491fab29570cef17ccf2fa92bba99cf5af2a0c668356bebdc83f99475255b0e62a8cba9cc632c3546a1009793b4e2364efe5

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

Filesize
78KB

MD5
0f65a2e9a8956902e28aef4a59fa8a75

SHA1
2b4e2a96328bb152d4c0bb45b50da613c031342e

SHA256
d0f211c2bd631f83b2080ac758d91061725ff0e43191463cc515d2565d78b78d

SHA512
f4568869aa7738876480e969f5cf1dc818f7b766eb014f0e044c009d2dac6a13121bb308411d73e9aefef012c5e89249f83d45a98942c75ee2165ee2d7e17470

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\Users\Admin\AppData\Local\Temp\nsjBB26.tmp\InstallOptions.dll

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

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\Users\Admin\AppData\Local\Temp\nsjBB26.tmp\System.dll

Filesize
10KB

MD5
fe24766ba314f620d57d0cf7339103c0

SHA1
8641545f03f03ff07485d6ec4d7b41cbb898c269

SHA256
802ef71440f662f456bed6283a5ff78066af016897fe6bfd29cac6edc2967bbd

SHA512
60d36959895cebf29c4e7713e6d414980139c7aa4ed1c8c96fefb672c1263af0ce909fb409534355895649c0e8056635112efb0da2ba05694446aec2ca77e2e3

Download Submit