bd596b7c49cb63c8b73a815c4eceb0149ccaee34d124dc9cf5e5c5304dde7a5f

Analysis

max time kernel
146s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
19-07-2024 02:53

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General

Target

uninstall.exe
Size

127KB
MD5

0e144a993262f7e49c99b0de1dc4f103
SHA1

d09935edcfe4c35489fa503452e36b3c83c6a12b
SHA256

936ccf8115ea5fceefa08f6f77ea53e61b436342f46665f9e57b5fb8425af7c9
SHA512

300e9379f2249205a523b0d94d93f02bc3cc441e28951f5bc539530d2f3783d11d7d6c48c3d21cf4dd5f5a15ed3dea005ac62215b29bb0a8a98aa2cc70c5d76c
SSDEEP

3072:qQIURTXJDUXRDBbuteuWb9tXcwjisModOBnX:qsJUhDBytywJX

Score

7^/10

evasion trojan

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2784	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
2784	Au_.exe
2784	Au_.exe
2784	Au_.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	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
behavioral24/files/0x00070000000234dc-5.dat	nsis_installer_1
behavioral24/files/0x00070000000234dc-5.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 740 wrote to memory of 2784	740	uninstall.exe	84
PID 740 wrote to memory of 2784	740	uninstall.exe	84
PID 740 wrote to memory of 2784	740	uninstall.exe	84

C:\Users\Admin\AppData\Local\Temp\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:740
- 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
  - Checks whether UAC is enabled
  PID:2784

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\nsz9DB9.tmp\UAC.dll

Filesize
17KB

MD5
88ad3fd90fc52ac3ee0441a38400a384

SHA1
08bc9e1f5951b54126b5c3c769e3eaed42f3d10b

SHA256
e58884695378cf02715373928bb8ade270baf03144369463f505c3b3808cbc42

SHA512
359496f571e6fa2ec4c5ab5bd1d35d1330586f624228713ae55c65a69e07d8623022ef54337c22c3aab558a9b74d9977c8436f5fea4194899d9ef3ffd74e7dbb

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C:\Users\Admin\AppData\Local\Temp\nsz9DB9.tmp\mIRC.dll

Filesize
23KB

MD5
37951d5d14c5b7d41899bfe3bcf965b8

SHA1
3f429c58188753ce59ef159785c468790955a821

SHA256
41e306c9396301950b4ed6e961736f70514fa57c9d872da11416e09fd0af50ee

SHA512
ba714c83eb2b89e353344b45949090e367b53ab04251ed316c43af60340e3f0d47323b15f4f9929c48910ac18e78178fb4f4dfa1f366ffbcdb6186eb3df15027

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

Filesize
127KB

MD5
0e144a993262f7e49c99b0de1dc4f103

SHA1
d09935edcfe4c35489fa503452e36b3c83c6a12b

SHA256
936ccf8115ea5fceefa08f6f77ea53e61b436342f46665f9e57b5fb8425af7c9

SHA512
300e9379f2249205a523b0d94d93f02bc3cc441e28951f5bc539530d2f3783d11d7d6c48c3d21cf4dd5f5a15ed3dea005ac62215b29bb0a8a98aa2cc70c5d76c

Download Submit