smokeloader | 47203fc7445c1e0e06643f363dd7d86ccc46b70ab234e5fbfe72badfdd6704ae

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
24-05-2024 08:22

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General

Target

8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe
Size

269KB
MD5

7026e3aa9f50316cae3b6011c9203154
SHA1

b03356e80698e90ac1548a4086d8ebf84daf12d1
SHA256

8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73
SHA512

3de786fb21f2717ec49fb49705dd23f141293eb2d1437a7be4e20dc30f95d749e69473d22ea279c8d9bc76fe0282a030070cf68e1d1e7055ec2d77639c62e951
SSDEEP

6144:VVqctlMQMY6Vo++E0R6gFAOzTEtftXg35:VVRtiQMYlXVT+Fw35

Score

10^/10

smokeloader backdoor trojan

Malware Config

Extracted

Family

smokeloader

Version

2022

http://77.91.68.29/fks/

rc4.i32

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe

description	pid	process	target process
PID 2232 set thread context of 2040	2232	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe	AppLaunch.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2204 2232 WerFault.exe 8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe

pid	pid_target	process	target process
2204	2232	WerFault.exe	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe

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:

AppLaunch.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

AppLaunch.exe

pid	process
2040	AppLaunch.exe
2040	AppLaunch.exe
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Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

AppLaunch.exe

pid process

2040 AppLaunch.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe

description	pid	process	target process
PID 2232 wrote to memory of 2040	2232	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe	AppLaunch.exe
PID 2232 wrote to memory of 2040	2232	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe	AppLaunch.exe
PID 2232 wrote to memory of 2040	2232	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe	AppLaunch.exe
PID 2232 wrote to memory of 2040	2232	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe	AppLaunch.exe
PID 2232 wrote to memory of 2040	2232	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe	AppLaunch.exe
PID 2232 wrote to memory of 2040	2232	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe	AppLaunch.exe
PID 2232 wrote to memory of 2040	2232	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe	AppLaunch.exe
PID 2232 wrote to memory of 2040	2232	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe	AppLaunch.exe
PID 2232 wrote to memory of 2040	2232	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe	AppLaunch.exe
PID 2232 wrote to memory of 2040	2232	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe	AppLaunch.exe
PID 2232 wrote to memory of 2204	2232	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe	WerFault.exe
PID 2232 wrote to memory of 2204	2232	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe	WerFault.exe
PID 2232 wrote to memory of 2204	2232	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe	WerFault.exe
PID 2232 wrote to memory of 2204	2232	8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe
"C:\Users\Admin\AppData\Local\Temp\8433f5b093e4f920b53f3456df2f996e8f480ad451bdcdc88ebaddda4abd8a73.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2232

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2232 -s 92
2⤵
- Program crash
PID:2204

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

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Downloads

memory/1204-5-0x0000000003CE0000-0x0000000003CF6000-memory.dmp

Filesize
88KB

Download
memory/2040-3-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2040-2-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2040-1-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2040-0-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2040-4-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2040-6-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download