583b51287187df514ef222f1aee18d48424a64a9f50909dd27a47ad245f863c2

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
04-07-2024 05:21

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General

Target

uninst.exe
Size

60KB
MD5

8459bf3f3c495ac7754671cefafd63c5
SHA1

21670a54678a8e4c94ed829b92a7cfcdf5cf482f
SHA256

5a431206fc24c8411bb1301091c38b98a304882359181ce4e1baa468669b0602
SHA512

c7dcf4db4f0cc34efb67f93a0c2f55d19c79d8b05ba2f163fa118d7ea605887944247ea0c0227d2ddffe22a6f65062d80d1c8164200a42800ad8bff776de44e5
SSDEEP

1536:5qBwbLWJLJFKqAZzrZA4kJJZgdLeAyNZEl6YvlAe9:5qBFJLzgOJJZceAVMyf

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1704	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
1704	Au_.exe

Loads dropped DLL 6 IoCs

pid	Process
2204	uninst.exe
1704	Au_.exe
1704	Au_.exe
1704	Au_.exe
1704	Au_.exe
1704	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/0x0034000000015d07-2.dat	nsis_installer_1
behavioral17/files/0x0034000000015d07-2.dat	nsis_installer_2

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1704	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 1704	2204	uninst.exe	28
PID 2204 wrote to memory of 1704	2204	uninst.exe	28
PID 2204 wrote to memory of 1704	2204	uninst.exe	28
PID 2204 wrote to memory of 1704	2204	uninst.exe	28
PID 2204 wrote to memory of 1704	2204	uninst.exe	28
PID 2204 wrote to memory of 1704	2204	uninst.exe	28
PID 2204 wrote to memory of 1704	2204	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:2204
- 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⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  PID:1704

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

\Users\Admin\AppData\Local\Temp\nsi2EAF.tmp\KillProcDLL.dll

Filesize
4KB

MD5
99f345cf51b6c3c317d20a81acb11012

SHA1
b3d0355f527c536ea14a8ff51741c8739d66f727

SHA256
c2689ba1f66066afce85ca6457ecd36370be0fe351c58422e45efd0948655c93

SHA512
937aa75be84a74f2be3b54dc80fac02c17dad1915d924ef82ab354d2a49bc773ee6d801203c52686113783a7c7ea0e8ed8e673ba696d6d3212f7006e291ed2ef

Download Submit
\Users\Admin\AppData\Local\Temp\nsi2EAF.tmp\time.dll

Filesize
10KB

MD5
38977533750fe69979b2c2ac801f96e6

SHA1
74643c30cda909e649722ed0c7f267903558e92a

SHA256
b4a95a455e53372c59f91bc1b5fb9e5c8e4a10a506fa04aaf7be27048b30ae35

SHA512
e17069395ad4a17e24f7cd3c532670d40244bd5ae3887c82e3b2e4a68c250cd55e2d8b329d6ff0e2d758955ab7470534e6307779e49fe331c1fd2242ea73fd53

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

Filesize
60KB

MD5
8459bf3f3c495ac7754671cefafd63c5

SHA1
21670a54678a8e4c94ed829b92a7cfcdf5cf482f

SHA256
5a431206fc24c8411bb1301091c38b98a304882359181ce4e1baa468669b0602

SHA512
c7dcf4db4f0cc34efb67f93a0c2f55d19c79d8b05ba2f163fa118d7ea605887944247ea0c0227d2ddffe22a6f65062d80d1c8164200a42800ad8bff776de44e5

Download Submit
memory/1704-20-0x0000000000960000-0x0000000000963000-memory.dmp

Filesize
12KB

Download
memory/1704-32-0x0000000000960000-0x0000000000962000-memory.dmp

Filesize
8KB

Download