2240bf5fb5d80938b0676c46ef9f84bc1739c32f60c473ff85e530ae0eca2818

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01/06/2024, 18:25

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General

Target
uninstaller.exe
Size 74KB
Sample240601-w2mkksbf98
SHA256 c4e59737ffd988ef4bc7a62e3316a470b1b09a9889f65908110fba3d7b1c6500
MD5 bfffc38fff05079b15a5317e279dc7a9
SHA1 0c18db954f11646d65d0300e58fefcd9ff7634de
SHA512 d30220e024ac242285ea757006e7da3874e5f889951de226d48c372a6a8701b76d4a917134ecc1e72c6c3a8d43444762288e7134a25d837e9f43d972675c81d6
SSDEEP 1536:fRPYqa5pic6jXFdL2KiMcrgCKdO/LeAyNLs9Y0tIdJVgwkL7U3:pPA6jXFN2Mcr/tTeAt9jidJVnkfU
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2612	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
2612	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
2968	uninstaller.exe
2612	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
behavioral19/files/0x0006000000015642-2.dat	nsis_installer_1
behavioral19/files/0x0006000000015642-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 2612	2968	uninstaller.exe	28
PID 2968 wrote to memory of 2612	2968	uninstaller.exe	28
PID 2968 wrote to memory of 2612	2968	uninstaller.exe	28
PID 2968 wrote to memory of 2612	2968	uninstaller.exe	28

C:\Users\Admin\AppData\Local\Temp\uninstaller.exe
"C:\Users\Admin\AppData\Local\Temp\uninstaller.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2612

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

System.dll

Path \Users\Admin\AppData\Local\Temp\nst2FD9.tmp\System.dll
Size 10KB
SHA256 bb6df93369b498eaa638b0bcdc4bb89f45e9b02ca12d28bcedf4629ea7f5e0f1
MD5 56a321bd011112ec5d8a32b2f6fd3231
SHA1 df20e3a35a1636de64df5290ae5e4e7572447f78
SHA512 5354890cbc53ce51081a78c64ba9c4c8c4dc9e01141798c1e916e19c5776dac7c82989fad0f08c73e81aaba332dad81205f90d0663119af45550b97b338b9cc3
SSDEEP 192:uv+cJZE61KRWJQO6tFiUdK7ckK4k7l1XRBm0w+NiHi1GSJ:uf6rtFRduQ1W+fG8
MD5 SHA1 SHA512 SSDEEP

Submit Download

Au_.exe

Path \Users\Admin\AppData\Local\Temp\~nsuA.tmp\Au_.exe
Size 74KB
SHA256 c4e59737ffd988ef4bc7a62e3316a470b1b09a9889f65908110fba3d7b1c6500
MD5 bfffc38fff05079b15a5317e279dc7a9
SHA1 0c18db954f11646d65d0300e58fefcd9ff7634de
SHA512 d30220e024ac242285ea757006e7da3874e5f889951de226d48c372a6a8701b76d4a917134ecc1e72c6c3a8d43444762288e7134a25d837e9f43d972675c81d6
SSDEEP 1536:fRPYqa5pic6jXFdL2KiMcrgCKdO/LeAyNLs9Y0tIdJVgwkL7U3:pPA6jXFN2Mcr/tTeAt9jidJVnkfU
MD5 SHA1 SHA512 SSDEEP