257a617f6233df4361c8c430261293c3d016c4757b03692329a5d078f9eb0a51

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01-05-2024 12:32

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General

Target

uninst.exe
Size

64KB
MD5

96910c8a8d4b7ede90a59c90d105c511
SHA1

413e570bcb74495a7d4dd8b96ab64aef381ee876
SHA256

8c3f7744fbc3b8280a578436a1c58eb12308d58285ae554ffed9e38c3742126f
SHA512

4a7308a754b8c137f24475785b00b00ff8705cfe795a17fadec4fff3f472bd53d177e85bae09e6b3799b7c35a5365b122c1f1517dfc22b1b5f73453474e37a14
SSDEEP

1536:5aLuXE8XPIYyr7jvN0DoJ+cGgdLeAyNxnrz2/a6Bb:0LuXzXwYyr6DoocGceAy3ua6Bb

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2996	Un_A.exe

Executes dropped EXE 1 IoCs

pid	Process
2996	Un_A.exe

Loads dropped DLL 2 IoCs

pid	Process
2780	uninst.exe
2996	Un_A.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
behavioral11/files/0x0033000000015f6d-2.dat	nsis_installer_1
behavioral11/files/0x0033000000015f6d-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 2996	2780	uninst.exe	28
PID 2780 wrote to memory of 2996	2780	uninst.exe	28
PID 2780 wrote to memory of 2996	2780	uninst.exe	28
PID 2780 wrote to memory of 2996	2780	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:2780
- C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2996

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\nsy3267.tmp\LangDLL.dll

Filesize
5KB

MD5
b26b412d9f1050ad53f663c972fdcd9f

SHA1
7bc4ed444f3f8fd14c2c36784d828175bace8c17

SHA256
70c842f318f691d92e5829616a283aa9bf9dc18cea6f39bad028e176056b591a

SHA512
ba350a10b41c0cfe34c502e3d0e68fbfe1489448c85a282e0a5e444fa58d0dd8be2e566e21f0734a0debfc454f08b84140964c09c4c952f6a442642c911d7b46

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\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

Filesize
64KB

MD5
96910c8a8d4b7ede90a59c90d105c511

SHA1
413e570bcb74495a7d4dd8b96ab64aef381ee876

SHA256
8c3f7744fbc3b8280a578436a1c58eb12308d58285ae554ffed9e38c3742126f

SHA512
4a7308a754b8c137f24475785b00b00ff8705cfe795a17fadec4fff3f472bd53d177e85bae09e6b3799b7c35a5365b122c1f1517dfc22b1b5f73453474e37a14

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