smokeloader | ab98884a05fa8f1496c775d4a8ac6a55a59a0de59d818ad850aba4bffa7c66fd

Analysis

max time kernel
148s
max time network
150s
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 13:33

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General

Target

ab98884a05fa8f1496c775d4a8ac6a55a59a0de59d818ad850aba4bffa7c66fd.exe
Size

211KB
MD5

632083e3a2f177fb1b76e2b8fcee4c75
SHA1

24c9fd7aa7249425074b45f9a6efc857473799e2
SHA256

ab98884a05fa8f1496c775d4a8ac6a55a59a0de59d818ad850aba4bffa7c66fd
SHA512

0d3062bd15586583b35a7b108bffb5c17cb12e701e460444b0473ace2996a0cb8145ec267fb58952fde611c419cef6d3213ebc4baaa4324df16ff48e8cf5cc2e
SSDEEP

3072:ZbWoSdUCtu9MUy4xk2Q5Jco4RxJEPSvnARgYzbHOAg0FujDw5A+bWKp9eCSrW5PK:ZqogFu6U3xkxaRHEF+AO5eWuaW5XC

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:

ab98884a05fa8f1496c775d4a8ac6a55a59a0de59d818ad850aba4bffa7c66fd.exe

description	pid	Process	procid_target
PID 3920 set thread context of 4824	3920	ab98884a05fa8f1496c775d4a8ac6a55a59a0de59d818ad850aba4bffa7c66fd.exe	91

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1172	3920	WerFault.exe	82

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:

ab98884a05fa8f1496c775d4a8ac6a55a59a0de59d818ad850aba4bffa7c66fd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ab98884a05fa8f1496c775d4a8ac6a55a59a0de59d818ad850aba4bffa7c66fd.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 use of WriteProcessMemory 5 IoCs

Processes:

ab98884a05fa8f1496c775d4a8ac6a55a59a0de59d818ad850aba4bffa7c66fd.exe

description	pid	Process	procid_target
PID 3920 wrote to memory of 4824	3920	ab98884a05fa8f1496c775d4a8ac6a55a59a0de59d818ad850aba4bffa7c66fd.exe	91
PID 3920 wrote to memory of 4824	3920	ab98884a05fa8f1496c775d4a8ac6a55a59a0de59d818ad850aba4bffa7c66fd.exe	91
PID 3920 wrote to memory of 4824	3920	ab98884a05fa8f1496c775d4a8ac6a55a59a0de59d818ad850aba4bffa7c66fd.exe	91
PID 3920 wrote to memory of 4824	3920	ab98884a05fa8f1496c775d4a8ac6a55a59a0de59d818ad850aba4bffa7c66fd.exe	91
PID 3920 wrote to memory of 4824	3920	ab98884a05fa8f1496c775d4a8ac6a55a59a0de59d818ad850aba4bffa7c66fd.exe	91

C:\Users\Admin\AppData\Local\Temp\ab98884a05fa8f1496c775d4a8ac6a55a59a0de59d818ad850aba4bffa7c66fd.exe
"C:\Users\Admin\AppData\Local\Temp\ab98884a05fa8f1496c775d4a8ac6a55a59a0de59d818ad850aba4bffa7c66fd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3920
- 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:4824
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3920 -s 276
  2⤵
  - Program crash
  PID:1172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3920 -ip 3920
1⤵
PID:2856

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/3920-0-0x00000000001D1000-0x00000000001D3000-memory.dmp

Filesize
8KB

Download
memory/4824-1-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download