7e10b538209da2adc350ec765ddab6b8dfe2be66ca67b0355645ff1099d04923

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 01:04

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General

Target

$0/uninstall.exe
Size

78KB
MD5

a2e8cb9d599e21095a28f548fc156232
SHA1

f39d004f294d08e87daec0e118260c980fed1bf0
SHA256

ef664d3b690283b91afc6e3a545c28b14bab3448b79a34d39a0c0aec15f4d29a
SHA512

7e4eef45d5cc53b0f9f5c48fd6e24aab458e5495cf4a2b37405a17f73da6a9e8ed1bf833f0f83932c43e624cc018fa95de03cee5cf533c27f6dc3b9d86b52b6c
SSDEEP

1536:PEkjY1zy214Qay0DGkJ7qAELVigJTzdcp6hLeh8a+gZuNCtO2/DF:8kjAJ4dDGkJ+AI0GzC4hChIg97/Z

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2384	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
2128	uninstall.exe
2384	Au_.exe
2384	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/0x00080000000122c9-2.dat	nsis_installer_1

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2384	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2384	2128	uninstall.exe	28
PID 2128 wrote to memory of 2384	2128	uninstall.exe	28
PID 2128 wrote to memory of 2384	2128	uninstall.exe	28
PID 2128 wrote to memory of 2384	2128	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:2128
- 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:2384

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\nsyACB.tmp\ioSpecial.ini

Filesize
699B

MD5
dcf7817bd4f780c609121c79caf0c4e1

SHA1
734f7b0cf330054d449c656a4f1a667b6a0568cc

SHA256
06feb30e995b67b51544fa64669062fbcfd523cbc25168a334b1a74d9d978ce6

SHA512
e88afcda9020925ee66ea5cd517bf14e0c4239dd8981d5f1f07f73439a45af3521e4ba3cdb32d71968e14c055d7382c795dbaba675e45646c46784f55a5b9836

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

Filesize
712B

MD5
6c463f4259d18b661e3b0773e79ebd1b

SHA1
8d1dbfdcf3f636ac1b842b266dc55bdcd0f2b519

SHA256
9f0da2066ba82d3f3ac4a00d2a80a298af0e53fe84457f8d58a7608836300a70

SHA512
d7719ac9247ae21f95c3f0a0bf3d8a8eaaf757cd789aba40b3b03bfa8fd12596d17edbdc5624d0bbbc2d753ddc444c8266db9b7af76a5ecafcacc35e16c12768

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

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

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\Users\Admin\AppData\Local\Temp\nsyACB.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
78KB

MD5
a2e8cb9d599e21095a28f548fc156232

SHA1
f39d004f294d08e87daec0e118260c980fed1bf0

SHA256
ef664d3b690283b91afc6e3a545c28b14bab3448b79a34d39a0c0aec15f4d29a

SHA512
7e4eef45d5cc53b0f9f5c48fd6e24aab458e5495cf4a2b37405a17f73da6a9e8ed1bf833f0f83932c43e624cc018fa95de03cee5cf533c27f6dc3b9d86b52b6c

Download Submit