smokeloader | 3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c

Analysis

max time kernel
93s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-11-2024 10:25

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General

Target

3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe
Size

316KB
MD5

302d0e7286b09bfc8bb9d6e1e21c15b6
SHA1

8e3106419f56522f558972734ff750702e1c23e9
SHA256

3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c
SHA512

a4212c90f6b6d2ac7a17cae60e3a5a487cdb4eab1c33923b114c2fe36916b6130c587b827a1a907d05a96dd34023b38c4edf4c8e5ca41e1f94bdf166a112fce6
SSDEEP

6144:nWaUnZJBsr1XBM2fDGyQyaZ0lGZLDHkK3KbR:RUnZfw1XG2fDGyQyaZ0lGZLT3K

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe

description	pid	process	target process
PID 2216 set thread context of 4320	2216	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.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:

3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe

description	pid	process	target process
PID 2216 wrote to memory of 4320	2216	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe
PID 2216 wrote to memory of 4320	2216	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe
PID 2216 wrote to memory of 4320	2216	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe
PID 2216 wrote to memory of 4320	2216	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe
PID 2216 wrote to memory of 4320	2216	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe
PID 2216 wrote to memory of 4320	2216	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe	3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe

C:\Users\Admin\AppData\Local\Temp\3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe
"C:\Users\Admin\AppData\Local\Temp\3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2216
- C:\Users\Admin\AppData\Local\Temp\3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe
  "C:\Users\Admin\AppData\Local\Temp\3b119e0cb4b8799f5b10f5b16e36bfce4b007f93f462db4445852be360c43e8c.exe"
  2⤵
  - Checks SCSI registry key(s)
  PID:4320

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2216-1-0x0000000002CB0000-0x0000000002DB0000-memory.dmp

Filesize
1024KB

Download
memory/2216-2-0x0000000004750000-0x0000000004759000-memory.dmp

Filesize
36KB

Download
memory/4320-3-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4320-4-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4320-5-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download