584c8cebd10c8c65ba296ca76e8008fb24c708690a5af3d55d384e9fd5ca768b

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/03/2024, 03:57

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General

Target
MainInstaller.exe
Size 531KB
Sample240321-ejenksbd37
SHA256 3dbc5aff076ef9c86a90ad30e963581f7cb22f8e212aa38db29d82cf45b73f80
MD5 9ce448dcd7cf13dd950725957361bdff
SHA1 5831ff31825ea82d90a2989e0fc0a33b859d5f97
SHA512 b4a175da3677cd3380cb3789f281f2afb10aa00dc9592217062d66eb9b5e73805886b692975d7244cdd439d8d5bcd0eb5810533284ba4b13ff02a20b792bf74f
SSDEEP 12288:z/8Ze69hm2S17Y/bv9VXXLVS+n28L6OdBCZrrf3xSEowuj6ZQM7gMWZQkN:zihc17YpVE+PGsB03xSEowuj6ZQM71WD
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2880	Setup.exe

Loads dropped DLL 2 IoCs

pid	Process
2348	MainInstaller.exe
2880	Setup.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
behavioral13/files/0x000d000000012248-2.dat	nsis_installer_1
behavioral13/files/0x000d000000012248-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2880	Setup.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 2880	2348	MainInstaller.exe	28
PID 2348 wrote to memory of 2880	2348	MainInstaller.exe	28
PID 2348 wrote to memory of 2880	2348	MainInstaller.exe	28
PID 2348 wrote to memory of 2880	2348	MainInstaller.exe	28
PID 2348 wrote to memory of 2880	2348	MainInstaller.exe	28
PID 2348 wrote to memory of 2880	2348	MainInstaller.exe	28
PID 2348 wrote to memory of 2880	2348	MainInstaller.exe	28

C:\Users\Admin\AppData\Local\Temp\MainInstaller.exe
"C:\Users\Admin\AppData\Local\Temp\MainInstaller.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Users\Admin\AppData\Local\Temp\Setup.exe
  C:\Users\Admin\AppData\Local\Temp\Setup.exe /PID=0 /NOTIFY=0 /FFR=1 /FFP=1
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2880

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

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Downloads

ioSpecial.ini

Path C:\Users\Admin\AppData\Local\Temp\nst58AC.tmp\ioSpecial.ini
Size 694B
SHA256 07f46868aa2df6cdae46698985ac21f2c2c302d7e6d7150e2117d26c44794de6
MD5 3e8660b71dd027f7773d2d346e099e62
SHA1 aea55d5158e7b39f78b04e7e7932dc2386099c58
SHA512 a23388d96565bb6fe7ba21bc54209f723861d0485b50763c9d0a048c83c88c67c9126515704cb152a19ad8aa70bd0eeeb32af50f061131622736de9c573d24e0
MD5 SHA1 SHA512

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Setup.exe

Path \Users\Admin\AppData\Local\Temp\Setup.exe
Size 505KB
SHA256 30522715240f4a05859099ac370dfb516097ab257402981c6a9ad31951f36cce
MD5 5d8d0c08384ad73216d52a2eabc064f5
SHA1 0fa5c77fd6b6323b926c9648679e063d1bbc8bcc
SHA512 42a3003019e39622082506c7ae50d8a27e2920fdfdf15eb9a8dbf7f1dbd49a02cd0390dabd74c136ed44e9d8ba270540ce9390f31aa84c2fc9fdfcc9e912dd57
SSDEEP 12288:6xPm2P17YJbq9VXMLVS+n78L6OdBRdrrf3xr5Uw1jcZQM7gMyZQU:6Jh17YYVV+YGsBH3xr5Uw1jcZQM71yZX
MD5 SHA1 SHA512 SSDEEP

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InstallOptions.dll

Path \Users\Admin\AppData\Local\Temp\nst58AC.tmp\InstallOptions.dll
Size 14KB
SHA256 c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b
MD5 325b008aec81e5aaa57096f05d4212b5
SHA1 27a2d89747a20305b6518438eff5b9f57f7df5c3
SHA512 18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf
SSDEEP 192:86d+dHXLHQOPiY53uiUdigyU+WsPdc/A1A+2jwK72dwF7dBEnbok:86UdHXcIiY535zBt2jw+BEnbo
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads