70465c5fbe24ea30a733cc14c85d8a5b3ccfafc49c2e1a853f1c92589b99fa4c

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-01-2024 21:59

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General

Target

MainInstaller.exe
Size

531KB
MD5

9ce448dcd7cf13dd950725957361bdff
SHA1

5831ff31825ea82d90a2989e0fc0a33b859d5f97
SHA256

3dbc5aff076ef9c86a90ad30e963581f7cb22f8e212aa38db29d82cf45b73f80
SHA512

b4a175da3677cd3380cb3789f281f2afb10aa00dc9592217062d66eb9b5e73805886b692975d7244cdd439d8d5bcd0eb5810533284ba4b13ff02a20b792bf74f
SSDEEP

12288:z/8Ze69hm2S17Y/bv9VXXLVS+n28L6OdBCZrrf3xSEowuj6ZQM7gMWZQkN:zihc17YpVE+PGsB03xSEowuj6ZQM71WD

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2908	Setup.exe

Loads dropped DLL 2 IoCs

pid	Process
2228	MainInstaller.exe
2908	Setup.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

NSIS installer 4 IoCs

installer

resource	yara_rule
behavioral17/files/0x000d000000012252-2.dat	nsis_installer_1
behavioral17/files/0x000d000000012252-2.dat	nsis_installer_2
behavioral17/files/0x000d000000012252-5.dat	nsis_installer_1
behavioral17/files/0x000d000000012252-5.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2908	Setup.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2908	2228	MainInstaller.exe	28
PID 2228 wrote to memory of 2908	2228	MainInstaller.exe	28
PID 2228 wrote to memory of 2908	2228	MainInstaller.exe	28
PID 2228 wrote to memory of 2908	2228	MainInstaller.exe	28
PID 2228 wrote to memory of 2908	2228	MainInstaller.exe	28
PID 2228 wrote to memory of 2908	2228	MainInstaller.exe	28
PID 2228 wrote to memory of 2908	2228	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:2228
- 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:2908

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\Setup.exe

Filesize
505KB

MD5
5d8d0c08384ad73216d52a2eabc064f5

SHA1
0fa5c77fd6b6323b926c9648679e063d1bbc8bcc

SHA256
30522715240f4a05859099ac370dfb516097ab257402981c6a9ad31951f36cce

SHA512
42a3003019e39622082506c7ae50d8a27e2920fdfdf15eb9a8dbf7f1dbd49a02cd0390dabd74c136ed44e9d8ba270540ce9390f31aa84c2fc9fdfcc9e912dd57

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsy4E21.tmp\ioSpecial.ini

Filesize
694B

MD5
3e7a34fbd3d7a670253685d5c8745ecb

SHA1
1c71d048af2eb2165a2b334f4ecdd39450baf8ae

SHA256
bdc63550d0f967da4bc8eacf8c1988d53edf10c7bf9985578933ad86b80e0537

SHA512
c4a9dd29a045b031a232796a713859226a7abd328200c74ae24ade053bdac28c487579ee41cf1e312dbadaab82c02aebb9f19f599f58388c8b75df4dc7b406fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsy4E21.tmp\ioSpecial.ini

Filesize
707B

MD5
12d89001007eef1d41e32a775afff30d

SHA1
f972a9db3b33ed77e425cf1e78025d7f68cc167c

SHA256
a62c116e4017de49a07fabf29abf4cc28a65882003f3d6fed7b95578abb1bb42

SHA512
78b9d083b648f161f7221982d409f417ca53412a617af65a0e25b1fc0162a985d6125e0231c8e563b8a43d7adea88f14964025cd9af085a111f875ec9f49888c

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\Users\Admin\AppData\Local\Temp\Setup.exe

Filesize
190KB

MD5
cf90b831d0f9d8459f5d123cdab1a0d2

SHA1
bacf4a3ea22fc2f8401b36f95ff18b76c073c4f5

SHA256
b3355ec10d155daef7034f4fc6a99fa8297542255dc4de22fb4b26aebd71ce29

SHA512
5c0cda7b0b6c6d72dfd4ed4e3b526a640a9a9b0e5ae6928aeeff6e41ca62154adddca7301f29e5a86ea4bf2a23509327e6d97f038f3816c3167d634b09db8532

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\Users\Admin\AppData\Local\Temp\nsy4E21.tmp\InstallOptions.dll

Filesize
14KB

MD5
325b008aec81e5aaa57096f05d4212b5

SHA1
27a2d89747a20305b6518438eff5b9f57f7df5c3

SHA256
c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b

SHA512
18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf

Download Submit