08371868aba92e7e40b8c2b7684ae051d846f288ab5692eb79b4ee19c7f9a4f8

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
24/04/2024, 11:42

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General

Target

uninst.exe
Size

47KB
MD5

89da208242478eba8244dff59caa70dd
SHA1

f8fb2231a9d5418e0e7493fb79c97c6d5d903792
SHA256

40e7678e756ec9b60d054d60a97675300a0a762cae2a7b01a48a9f3828e4f753
SHA512

93f06c9e1214f00ab5fe59df022788f5642751f31fa2875a4853c35300f6b5457170df64fec1186fb335904c2ba1e7c80145775c87da8a29073455e91952c419
SSDEEP

768:PhMZ0dF4ZFvQbn+eePu3cIQGCGbiC4k42M3wJJVKBTAScjgUW:PyZMSZFvknTePMZd4k4kJJVercs3

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2912	Au_.exe

Loads dropped DLL 5 IoCs

pid	Process
1348	uninst.exe
2912	Au_.exe
2912	Au_.exe
2912	Au_.exe
2912	Au_.exe

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

System Information Discovery
T1082

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral17/files/0x000d000000015d59-2.dat	nsis_installer_1
behavioral17/files/0x000d000000015d59-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2912	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1348 wrote to memory of 2912	1348	uninst.exe	28
PID 1348 wrote to memory of 2912	1348	uninst.exe	28
PID 1348 wrote to memory of 2912	1348	uninst.exe	28
PID 1348 wrote to memory of 2912	1348	uninst.exe	28
PID 1348 wrote to memory of 2912	1348	uninst.exe	28
PID 1348 wrote to memory of 2912	1348	uninst.exe	28
PID 1348 wrote to memory of 2912	1348	uninst.exe	28

C:\Users\Admin\AppData\Local\Temp\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\uninst.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1348
- 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
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2912

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\nsi2405.tmp\ioSpecial.ini

Filesize
564B

MD5
34e8d84b19aa27dbfff32cda8829fa4e

SHA1
99702fb253fa5593a94393ca4923e61db381df72

SHA256
9a062c51d63f44a7a15711af370957533906f9e6ddf2ac67a3d7fd15fa218f11

SHA512
3e97a3fc916a6f3dc06a71851818d0315b7162807db4cb1b6fdb8b9290b7f90af87cac2c7569fd31466f9746dd2872d4f008e1a5fd4864d6464e07a83a7d9263

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\Users\Admin\AppData\Local\Temp\nsi2405.tmp\InstallOptions.dll

Filesize
14KB

MD5
0dc0cc7a6d9db685bf05a7e5f3ea4781

SHA1
5d8b6268eeec9d8d904bc9d988a4b588b392213f

SHA256
8e287326f1cdd5ef2dcd7a72537c68cbe4299ceb1f820707c5820f3aa6d8206c

SHA512
814dd17ebb434f4a3356f716c783ab7f569f9ee34ce5274fa50392526925f044798f8006198ac7afe3d1c2ca83a2ca8c472ca53fec5f12bbfbbe0707abacd6b0

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

Filesize
47KB

MD5
89da208242478eba8244dff59caa70dd

SHA1
f8fb2231a9d5418e0e7493fb79c97c6d5d903792

SHA256
40e7678e756ec9b60d054d60a97675300a0a762cae2a7b01a48a9f3828e4f753

SHA512
93f06c9e1214f00ab5fe59df022788f5642751f31fa2875a4853c35300f6b5457170df64fec1186fb335904c2ba1e7c80145775c87da8a29073455e91952c419

Download Submit