919adef1b9d2ca7e57adff15c05837bf7ff3574c66805fabcfb3f7305f7989c7

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
23/06/2024, 23:22

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General

Target

$0/uninstall.exe
Size

83KB
MD5

4b5a133c83ffe05472ed40ed4a54ebda
SHA1

b2e988f53b1a80a98ca59d72d2e87946f2df693a
SHA256

ffa8a345433dc3eaebd9b4cb591146810cee70fcedefcb90b5033c58373455a7
SHA512

6d34ade3ca17ac33036d129e1c60156c94bd022ad3bebfb0356180f27aff83eda2fce5b19a8210f3e8ee92fc3d19328d38b526c0223c774e85195ba1c4c504d0
SSDEEP

1536:dEkjY1zy214Qay0DGkJ7qAELVigJaSXcpp0bUYr9H63dZZ2/DyO:akjAJ4dDGkJ+AI0tSMsUYk3d6/7

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2216	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
3008	uninstall.exe
2216	Au_.exe
2216	Au_.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

NSIS installer 1 IoCs

installer

resource	yara_rule
behavioral7/files/0x0039000000016255-2.dat	nsis_installer_1

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2216	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 2216	3008	uninstall.exe	28
PID 3008 wrote to memory of 2216	3008	uninstall.exe	28
PID 3008 wrote to memory of 2216	3008	uninstall.exe	28
PID 3008 wrote to memory of 2216	3008	uninstall.exe	28

C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3008
- 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
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2216

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nso2731.tmp\ioSpecial.ini

Filesize
619B

MD5
c204904aa880cdc468cc68316aeb0b84

SHA1
b7f5dd8533fd647e6a1a738708d77d9eaca9de5f

SHA256
1bfa150605b038211c471c8b84cd62a42576d8bb866624e28b2aa1b959a546d1

SHA512
5738581111d41810762fab5a7d2eebbdb897ed2d838b720562aea8cfff66b31a3ec7160a6b6e1e7e401b2c7f49a79b6e975a52f24cba6fda9d54acae0cfcd080

Download Submit
\Users\Admin\AppData\Local\Temp\nso2731.tmp\InstallOptions.dll

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

Download Submit
\Users\Admin\AppData\Local\Temp\nso2731.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
4b5a133c83ffe05472ed40ed4a54ebda

SHA1
b2e988f53b1a80a98ca59d72d2e87946f2df693a

SHA256
ffa8a345433dc3eaebd9b4cb591146810cee70fcedefcb90b5033c58373455a7

SHA512
6d34ade3ca17ac33036d129e1c60156c94bd022ad3bebfb0356180f27aff83eda2fce5b19a8210f3e8ee92fc3d19328d38b526c0223c774e85195ba1c4c504d0

Download Submit