smokeloader | 3500071769305b1d5753ccbdcb16bcd2ab047ae7994741e4628f68feb939e9b7

General

Target

3500071769305b1d5753ccbdcb16bcd2ab047ae7994741e4628f68feb939e9b7.exe
Size

272KB
MD5

a9c28724b16c3bb3af2fdb5aa9be277c
SHA1

bef9c7b857d0bc6c0d90204765704ca411a60e6d
SHA256

3500071769305b1d5753ccbdcb16bcd2ab047ae7994741e4628f68feb939e9b7
SHA512

6966dd9ae3c17c83db07ffaf69d035a89d82a315dd92d7465192e0fc14c7e750b1fb2163c662a926b103e516fffdb345112353f054cad079aab96a1b17a4bc3f
SSDEEP

6144:Dw7X5rSoVVk3NqPNPhZ0Q4KROPnEJRYiyP:D0xSoVyNqPNIXGRe

Score

10^/10

smokeloader pub1 backdoor persistence trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

C2

http://trad-einmyus.com/index.php

http://tradein-myus.com/index.php

http://trade-inmyus.com/index.php

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

Modifies Installed Components in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

Deletes itself 1 IoCs

Processes:

pid process

1396
Executes dropped EXE 1 IoCs

Processes:

aavwbhg

pid process

812 aavwbhg
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

36 drive.google.com
37 drive.google.com

pid	process
1396

pid	process
812	aavwbhg

flow	ioc
36	drive.google.com
37	drive.google.com

Checks SCSI registry key(s) 3 TTPs 6 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

3500071769305b1d5753ccbdcb16bcd2ab047ae7994741e4628f68feb939e9b7.exeaavwbhg

description	ioc	process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3500071769305b1d5753ccbdcb16bcd2ab047ae7994741e4628f68feb939e9b7.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3500071769305b1d5753ccbdcb16bcd2ab047ae7994741e4628f68feb939e9b7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	aavwbhg
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	aavwbhg
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	aavwbhg
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3500071769305b1d5753ccbdcb16bcd2ab047ae7994741e4628f68feb939e9b7.exe

Modifies registry class 5 IoCs

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

3500071769305b1d5753ccbdcb16bcd2ab047ae7994741e4628f68feb939e9b7.exe

pid	process
2808	3500071769305b1d5753ccbdcb16bcd2ab047ae7994741e4628f68feb939e9b7.exe
2808	3500071769305b1d5753ccbdcb16bcd2ab047ae7994741e4628f68feb939e9b7.exe
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
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1396
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1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396
1396

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

explorer.exe

pid process

936 explorer.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

3500071769305b1d5753ccbdcb16bcd2ab047ae7994741e4628f68feb939e9b7.exeaavwbhg

pid process

2808 3500071769305b1d5753ccbdcb16bcd2ab047ae7994741e4628f68feb939e9b7.exe
812 aavwbhg

Suspicious use of AdjustPrivilegeToken 16 IoCs

Processes:

explorer.exeAUDIODG.EXE

description	pid	process
Token: SeShutdownPrivilege	936	explorer.exe
Token: SeShutdownPrivilege	936	explorer.exe
Token: SeShutdownPrivilege	936	explorer.exe
Token: SeShutdownPrivilege	936	explorer.exe
Token: SeShutdownPrivilege	936	explorer.exe
Token: SeShutdownPrivilege	936	explorer.exe
Token: SeShutdownPrivilege	936	explorer.exe
Token: SeShutdownPrivilege	936	explorer.exe
Token: SeShutdownPrivilege	936	explorer.exe
Token: SeShutdownPrivilege	936	explorer.exe
Token: 33	2676	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2676	AUDIODG.EXE
Token: 33	2676	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2676	AUDIODG.EXE
Token: SeShutdownPrivilege	936	explorer.exe
Token: SeShutdownPrivilege	936	explorer.exe

Suspicious use of FindShellTrayWindow 29 IoCs

Processes:

explorer.exe

pid	process
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe

Suspicious use of SendNotifyMessage 17 IoCs

Processes:

explorer.exe

pid	process
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe
936	explorer.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

cmd.execmd.exetaskeng.exe

description	pid	process	target process
PID 1396 wrote to memory of 2536	1396		cmd.exe
PID 1396 wrote to memory of 2536	1396		cmd.exe
PID 1396 wrote to memory of 2536	1396		cmd.exe
PID 2536 wrote to memory of 2528	2536	cmd.exe	reg.exe
PID 2536 wrote to memory of 2528	2536	cmd.exe	reg.exe
PID 2536 wrote to memory of 2528	2536	cmd.exe	reg.exe
PID 1396 wrote to memory of 2348	1396		cmd.exe
PID 1396 wrote to memory of 2348	1396		cmd.exe
PID 1396 wrote to memory of 2348	1396		cmd.exe
PID 2348 wrote to memory of 2452	2348	cmd.exe	reg.exe
PID 2348 wrote to memory of 2452	2348	cmd.exe	reg.exe
PID 2348 wrote to memory of 2452	2348	cmd.exe	reg.exe
PID 1952 wrote to memory of 812	1952	taskeng.exe	aavwbhg
PID 1952 wrote to memory of 812	1952	taskeng.exe	aavwbhg
PID 1952 wrote to memory of 812	1952	taskeng.exe	aavwbhg
PID 1952 wrote to memory of 812	1952	taskeng.exe	aavwbhg

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\3500071769305b1d5753ccbdcb16bcd2ab047ae7994741e4628f68feb939e9b7.exe
"C:\Users\Admin\AppData\Local\Temp\3500071769305b1d5753ccbdcb16bcd2ab047ae7994741e4628f68feb939e9b7.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2808

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\D5C6.bat" "
1⤵
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Windows\system32\reg.exe
  reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
  2⤵
  PID:2528

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\C61.bat" "
1⤵
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Windows\system32\reg.exe
  reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
  2⤵
  PID:2452

C:\Windows\system32\taskeng.exe
taskeng.exe {A093E277-1529-496E-B294-809BA8244621} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Users\Admin\AppData\Roaming\aavwbhg
  C:\Users\Admin\AppData\Roaming\aavwbhg
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:812

C:\Windows\explorer.exe
explorer.exe
1⤵
- Modifies Installed Components in the registry
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:936

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x520
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2676

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\D5C6.bat

Filesize
77B

MD5
55cc761bf3429324e5a0095cab002113

SHA1
2cc1ef4542a4e92d4158ab3978425d517fafd16d

SHA256
d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a

SHA512
33f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155

Download Submit
C:\Users\Admin\AppData\Roaming\aavwbhg

Filesize
272KB

MD5
a9c28724b16c3bb3af2fdb5aa9be277c

SHA1
bef9c7b857d0bc6c0d90204765704ca411a60e6d

SHA256
3500071769305b1d5753ccbdcb16bcd2ab047ae7994741e4628f68feb939e9b7

SHA512
6966dd9ae3c17c83db07ffaf69d035a89d82a315dd92d7465192e0fc14c7e750b1fb2163c662a926b103e516fffdb345112353f054cad079aab96a1b17a4bc3f

Download Submit
memory/812-39-0x0000000000400000-0x0000000001A0F000-memory.dmp

Filesize
22.1MB

Download
memory/812-34-0x0000000000400000-0x0000000001A0F000-memory.dmp

Filesize
22.1MB

Download
memory/936-50-0x0000000002C10000-0x0000000002C20000-memory.dmp

Filesize
64KB

Download
memory/1396-4-0x0000000003AC0000-0x0000000003AD6000-memory.dmp

Filesize
88KB

Download
memory/1396-35-0x0000000003CC0000-0x0000000003CD6000-memory.dmp

Filesize
88KB

Download
memory/1396-44-0x0000000003A90000-0x0000000003A91000-memory.dmp

Filesize
4KB

Download
memory/2808-5-0x0000000000400000-0x0000000001A0F000-memory.dmp

Filesize
22.1MB

Download
memory/2808-8-0x0000000000220000-0x000000000022B000-memory.dmp

Filesize
44KB

Download
memory/2808-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-1-0x0000000001BD0000-0x0000000001CD0000-memory.dmp

Filesize
1024KB

Download
memory/2808-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-2-0x0000000000220000-0x000000000022B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads