smokeloader | b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d

Analysis

max time kernel
135s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-11-2024 12:11

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General

Target

b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe
Size

214KB
MD5

2cea614245de1ec3c3c5fb767acc051d
SHA1

bed4c966b25d94c09718f4c70f78cc1edd6a9de4
SHA256

b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d
SHA512

38654652ca24ff4c4e548c044b1f854efc9a2b8655cc97bdb6935e6a992b5651bdc8bcdf2edb1025edf1d4ef87c6c0b6325b665e4cfea7cf9d6adad2746fe54d
SSDEEP

6144:+5Cav7YAviw2dlUFs2WW7AOB0/cS9X0tJ1:+Uav7YAvnD7DdS9OJ

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:

b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe

description	pid	Process	procid_target
PID 4156 set thread context of 4792	4156	b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe	88

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:

b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.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 queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	RegSvcs.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe

description	pid	Process	procid_target
PID 4156 wrote to memory of 5076	4156	b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe	86
PID 4156 wrote to memory of 5076	4156	b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe	86
PID 4156 wrote to memory of 5076	4156	b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe	86
PID 4156 wrote to memory of 4424	4156	b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe	87
PID 4156 wrote to memory of 4424	4156	b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe	87
PID 4156 wrote to memory of 4424	4156	b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe	87
PID 4156 wrote to memory of 4792	4156	b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe	88
PID 4156 wrote to memory of 4792	4156	b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe	88
PID 4156 wrote to memory of 4792	4156	b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe	88
PID 4156 wrote to memory of 4792	4156	b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe	88
PID 4156 wrote to memory of 4792	4156	b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe	88

C:\Users\Admin\AppData\Local\Temp\b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe
"C:\Users\Admin\AppData\Local\Temp\b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4156
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:5076
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:4424
- 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:4792

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/4156-0-0x0000000000A93000-0x0000000000A95000-memory.dmp

Filesize
8KB

Download
memory/4792-1-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download