smokeloader | 195ef5e4ca5c9e009b18a1ea34369c2d87ff137a8a0f473ceb48261d7b002047

Analysis

max time kernel
150s
max time network
142s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-04-2024 13:42

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General

Target

b1637a25a2959c9a6da241d94d8ddac92f3e542d86dbebdc47c1a06a4f6190a0.exe
Size

293KB
MD5

5360fe5781d535acfbaeedd08e9c5b04
SHA1

1d1aede764c4396086a9847c193b1ee15b528ea2
SHA256

b1637a25a2959c9a6da241d94d8ddac92f3e542d86dbebdc47c1a06a4f6190a0
SHA512

68a8943c4bffa60864d90c286d0423a06f9ddaaa8f85d4c6d92e091f938c57dd1a92865014dfac6ad3ecc2dc67c9b3e161e479112d2aa77ab8b6a1b422b5f6bf
SSDEEP

3072:p/c24x3493JSl4C+VunyX/Bo7bAGGT6XL1MS6DdWcvMNm2zDngP9mQ6FIwG:p/Yl4CAi/o6XCSwMNm2a9m1I

Score

10^/10

smokeloader pub1 backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

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
Downloads MZ/PE file
Deletes itself 1 IoCs

Processes:

pid process

1388

pid	process
1388

Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

b1637a25a2959c9a6da241d94d8ddac92f3e542d86dbebdc47c1a06a4f6190a0.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b1637a25a2959c9a6da241d94d8ddac92f3e542d86dbebdc47c1a06a4f6190a0.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b1637a25a2959c9a6da241d94d8ddac92f3e542d86dbebdc47c1a06a4f6190a0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b1637a25a2959c9a6da241d94d8ddac92f3e542d86dbebdc47c1a06a4f6190a0.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

b1637a25a2959c9a6da241d94d8ddac92f3e542d86dbebdc47c1a06a4f6190a0.exe

pid	process
2944	b1637a25a2959c9a6da241d94d8ddac92f3e542d86dbebdc47c1a06a4f6190a0.exe
2944	b1637a25a2959c9a6da241d94d8ddac92f3e542d86dbebdc47c1a06a4f6190a0.exe
1388
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Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

b1637a25a2959c9a6da241d94d8ddac92f3e542d86dbebdc47c1a06a4f6190a0.exe

pid process

2944 b1637a25a2959c9a6da241d94d8ddac92f3e542d86dbebdc47c1a06a4f6190a0.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

pid process

1388
1388
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

pid process

1388
1388

pid	process
1388
1388

pid	process
1388
1388

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exe

description	pid	process	target process
PID 1388 wrote to memory of 2420	1388		cmd.exe
PID 1388 wrote to memory of 2420	1388		cmd.exe
PID 1388 wrote to memory of 2420	1388		cmd.exe
PID 2420 wrote to memory of 2484	2420	cmd.exe	reg.exe
PID 2420 wrote to memory of 2484	2420	cmd.exe	reg.exe
PID 2420 wrote to memory of 2484	2420	cmd.exe	reg.exe

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\b1637a25a2959c9a6da241d94d8ddac92f3e542d86dbebdc47c1a06a4f6190a0.exe
"C:\Users\Admin\AppData\Local\Temp\b1637a25a2959c9a6da241d94d8ddac92f3e542d86dbebdc47c1a06a4f6190a0.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2944

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\F7B7.bat" "
1⤵
- Suspicious use of WriteProcessMemory
PID:2420

C:\Windows\system32\reg.exe
reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
2⤵
PID:2484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

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\F7B7.bat
Filesize
77B

MD5
55cc761bf3429324e5a0095cab002113

SHA1
2cc1ef4542a4e92d4158ab3978425d517fafd16d

SHA256
d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a

SHA512
33f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155

Download Submit
memory/1388-4-0x0000000002710000-0x0000000002726000-memory.dmp

Filesize
88KB

Download
memory/2944-1-0x0000000000F60000-0x0000000001060000-memory.dmp

Filesize
1024KB

Download
memory/2944-2-0x00000000003C0000-0x00000000003CB000-memory.dmp

Filesize
44KB

Download
memory/2944-3-0x0000000000400000-0x0000000000AF2000-memory.dmp

Filesize
6.9MB

Download
memory/2944-5-0x0000000000400000-0x0000000000AF2000-memory.dmp

Filesize
6.9MB

Download