smokeloader | 2fa5adb1940605fdf9a3b39af904fe7cc2dba8d70039e1f96829a510242d71e2

max time kernel
60s
max time network
49s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
21-02-2024 18:39

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

79fe08c83e8f2f3679c3dfdcff6698b92489fa915ccfb3c3458827861034814a.exe
Size

298KB
MD5

11511ba5fd4de1fc5051d0bcefb388ae
SHA1

5e9476f39df92e01d0952e703869e71f85d470cd
SHA256

79fe08c83e8f2f3679c3dfdcff6698b92489fa915ccfb3c3458827861034814a
SHA512

904f0e3a252cd0ef8108492de955ac520008b10b66da736cc4bbdc6a8c3736440a9a11edb73707ba415d7f3f4c2c590dfa983aca01864b9d66a6c3559ed744e9
SSDEEP

3072:0pb2LIT54Ga9Qzgp4gaCJrSjgBoMZmYKxQCBnIyCSyxzID1C7hZW0KIsiuNZ:xLIKGa96dfkBoMsDlqSwzIDM/KPP

Score

10^/10

smokeloader backdoor trojan

Malware Config

Extracted

Family

smokeloader

Version

2022

http://potunulit.org/

http://hutnilior.net/

http://bulimu55t.net/

http://soryytlic4.net/

http://novanosa5org.org/

http://nuljjjnuli.org/

http://tolilolihul.net/

http://somatoka51hub.net/

http://hujukui3.net/

http://bukubuka1.net/

http://golilopaster.org/

http://newzelannd66.org/

http://otriluyttn.org/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Deletes itself 1 IoCs

Processes:

pid process

1196
Executes dropped EXE 1 IoCs

Processes:

twsecdj

pid process

2564 twsecdj

pid	process
1196

pid	process
2564	twsecdj

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:

79fe08c83e8f2f3679c3dfdcff6698b92489fa915ccfb3c3458827861034814a.exetwsecdj

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	79fe08c83e8f2f3679c3dfdcff6698b92489fa915ccfb3c3458827861034814a.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	79fe08c83e8f2f3679c3dfdcff6698b92489fa915ccfb3c3458827861034814a.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	79fe08c83e8f2f3679c3dfdcff6698b92489fa915ccfb3c3458827861034814a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	twsecdj
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	twsecdj
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	twsecdj

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

79fe08c83e8f2f3679c3dfdcff6698b92489fa915ccfb3c3458827861034814a.exe

pid	process
1732	79fe08c83e8f2f3679c3dfdcff6698b92489fa915ccfb3c3458827861034814a.exe
1732	79fe08c83e8f2f3679c3dfdcff6698b92489fa915ccfb3c3458827861034814a.exe
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196
1196

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

1196
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

79fe08c83e8f2f3679c3dfdcff6698b92489fa915ccfb3c3458827861034814a.exetwsecdj

pid process

1732 79fe08c83e8f2f3679c3dfdcff6698b92489fa915ccfb3c3458827861034814a.exe
2564 twsecdj

pid	process
1196

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 2660 wrote to memory of 2564	2660	taskeng.exe	twsecdj
PID 2660 wrote to memory of 2564	2660	taskeng.exe	twsecdj
PID 2660 wrote to memory of 2564	2660	taskeng.exe	twsecdj
PID 2660 wrote to memory of 2564	2660	taskeng.exe	twsecdj

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\79fe08c83e8f2f3679c3dfdcff6698b92489fa915ccfb3c3458827861034814a.exe
"C:\Users\Admin\AppData\Local\Temp\79fe08c83e8f2f3679c3dfdcff6698b92489fa915ccfb3c3458827861034814a.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1732

C:\Windows\system32\taskeng.exe
taskeng.exe {008F55EA-54A1-42D3-BE90-76C3DCFB7AB0} S-1-5-21-2248906074-2862704502-246302768-1000:GHPZRGFC\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2660

C:\Users\Admin\AppData\Roaming\twsecdj
C:\Users\Admin\AppData\Roaming\twsecdj
2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2564

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\twsecdj
Filesize
298KB

MD5
11511ba5fd4de1fc5051d0bcefb388ae

SHA1
5e9476f39df92e01d0952e703869e71f85d470cd

SHA256
79fe08c83e8f2f3679c3dfdcff6698b92489fa915ccfb3c3458827861034814a

SHA512
904f0e3a252cd0ef8108492de955ac520008b10b66da736cc4bbdc6a8c3736440a9a11edb73707ba415d7f3f4c2c590dfa983aca01864b9d66a6c3559ed744e9

Download Submit
memory/1196-4-0x0000000003DE0000-0x0000000003DF6000-memory.dmp

Filesize
88KB

Download
memory/1196-17-0x0000000004090000-0x00000000040A6000-memory.dmp

Filesize
88KB

Download
memory/1732-2-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/1732-3-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1732-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/1732-5-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1732-8-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/2564-15-0x00000000008D0000-0x00000000009D0000-memory.dmp

Filesize
1024KB

Download
memory/2564-16-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/2564-20-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download