smokeloader | 1e902df1377fe03cc6d153fe79db192589e68d96d817307856150eb9e98a53ee

Analysis

max time kernel
93s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-11-2024 16:24

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General

Target

873a639a93c1d19b872141d9572200ba.exe
Size

361KB
MD5

873a639a93c1d19b872141d9572200ba
SHA1

f5d2704617d33824adfea9476d946a335ac6e3fc
SHA256

1e902df1377fe03cc6d153fe79db192589e68d96d817307856150eb9e98a53ee
SHA512

256dc9d35bfd3a220863f777b2355f461cfccdc461a99ef9167334a89b025580ba5fc0113b9be7b2d12b6ee48d3afc100c53a3fd0f68e056f76c6fd07fb553f0
SSDEEP

6144:0FOlrWY18VODdR1YGqWnv4ygFdp41hajlttKh4rEZS1ulkYUdlnaRuGrS:jB18VODL1YZWnv4ygFdp41ha3L1ulkbW

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:

873a639a93c1d19b872141d9572200ba.exe

description	pid	Process	procid_target
PID 2580 set thread context of 1576	2580	873a639a93c1d19b872141d9572200ba.exe	95

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:

873a639a93c1d19b872141d9572200ba.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	873a639a93c1d19b872141d9572200ba.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:

RegSvcs.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	RegSvcs.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	RegSvcs.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

873a639a93c1d19b872141d9572200ba.exe

pid	Process
2580	873a639a93c1d19b872141d9572200ba.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

873a639a93c1d19b872141d9572200ba.exe

description	pid	Process	procid_target
PID 2580 wrote to memory of 1576	2580	873a639a93c1d19b872141d9572200ba.exe	95
PID 2580 wrote to memory of 1576	2580	873a639a93c1d19b872141d9572200ba.exe	95
PID 2580 wrote to memory of 1576	2580	873a639a93c1d19b872141d9572200ba.exe	95
PID 2580 wrote to memory of 1576	2580	873a639a93c1d19b872141d9572200ba.exe	95
PID 2580 wrote to memory of 1576	2580	873a639a93c1d19b872141d9572200ba.exe	95

C:\Users\Admin\AppData\Local\Temp\873a639a93c1d19b872141d9572200ba.exe
"C:\Users\Admin\AppData\Local\Temp\873a639a93c1d19b872141d9572200ba.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2580
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Checks SCSI registry key(s)
  PID:1576

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

Replay Monitor

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Downloads

memory/1576-1-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2580-0-0x0000000000E37000-0x0000000000E39000-memory.dmp

Filesize
8KB

Download