smokeloader | 61f3166277da61645a945cade7db1e93c252da687fbbd3cd9da79f9720af052f

Analysis

max time kernel
133s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
28/07/2024, 01:16

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General

Target

61f3166277da61645a945cade7db1e93c252da687fbbd3cd9da79f9720af052f.exe
Size

784KB
MD5

05de899a2e9b023f167c77e299c6ca01
SHA1

c104b67a69944ed526d35c8810a11e149b4f940a
SHA256

61f3166277da61645a945cade7db1e93c252da687fbbd3cd9da79f9720af052f
SHA512

d2c9a18aeac3577e5b00e16e346fc9ec5afe9afa2a12535893801e801fc30c6a0f08f3d3d968df7489329181a236b8b9daee047d0eb2862856fe45181872bf9f
SSDEEP

12288:sfcQ2enSVwLswxe1epJ4I/roVWBjIjh64kpLG/S:8v2enewAwxe1epuIcVGjIj0Sq

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2196 set thread context of 4468	2196	61f3166277da61645a945cade7db1e93c252da687fbbd3cd9da79f9720af052f.exe	88

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4480	2196	WerFault.exe	83

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	61f3166277da61645a945cade7db1e93c252da687fbbd3cd9da79f9720af052f.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

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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2196	61f3166277da61645a945cade7db1e93c252da687fbbd3cd9da79f9720af052f.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 4468	2196	61f3166277da61645a945cade7db1e93c252da687fbbd3cd9da79f9720af052f.exe	88
PID 2196 wrote to memory of 4468	2196	61f3166277da61645a945cade7db1e93c252da687fbbd3cd9da79f9720af052f.exe	88
PID 2196 wrote to memory of 4468	2196	61f3166277da61645a945cade7db1e93c252da687fbbd3cd9da79f9720af052f.exe	88
PID 2196 wrote to memory of 4468	2196	61f3166277da61645a945cade7db1e93c252da687fbbd3cd9da79f9720af052f.exe	88
PID 2196 wrote to memory of 4468	2196	61f3166277da61645a945cade7db1e93c252da687fbbd3cd9da79f9720af052f.exe	88

C:\Users\Admin\AppData\Local\Temp\61f3166277da61645a945cade7db1e93c252da687fbbd3cd9da79f9720af052f.exe
"C:\Users\Admin\AppData\Local\Temp\61f3166277da61645a945cade7db1e93c252da687fbbd3cd9da79f9720af052f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Checks SCSI registry key(s)
  PID:4468
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2196 -s 296
  2⤵
  - Program crash
  PID:4480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2196 -ip 2196
1⤵
PID:1196

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/2196-0-0x000000000041F000-0x0000000000420000-memory.dmp

Filesize
4KB

Download
memory/2196-6-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/4468-1-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4468-4-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4468-5-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download