smokeloader | 1118a93cc63a70ba8348182f7012ddbeecf890345941c82376ac967faf55a295

Analysis

max time kernel
181s
max time network
312s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
04-02-2025 20:29

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

svc1.exe
Size

112KB
MD5

5c1afd27623185ab5fafe9753c2d92db
SHA1

29e05c0f600190f91bd4709b2bb0a9aba41590b2
SHA256

1118a93cc63a70ba8348182f7012ddbeecf890345941c82376ac967faf55a295
SHA512

05b89fc0ec46cfc49a02c9b3042e3f763afbea34e559eb8687b68e1fb2c7c16efec8c5ee6b2a09f8ee2d6d415a871d47a4d8f065aa40634c946ac1873185cd96
SSDEEP

3072:JAZhRxolxAMMnyrYfKsvWfRaY/UvrYDCQ8/kQ:JahKzChWcisYDC9/kQ

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

description	pid	Process	procid_target
PID 2476 set thread context of 2296	2476	svc1.exe	86

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4544	2476	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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svc1.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	svc1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	svc1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	svc1.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2476 wrote to memory of 2296	2476	svc1.exe	86
PID 2476 wrote to memory of 2296	2476	svc1.exe	86
PID 2476 wrote to memory of 2296	2476	svc1.exe	86
PID 2476 wrote to memory of 2296	2476	svc1.exe	86
PID 2476 wrote to memory of 2296	2476	svc1.exe	86
PID 2476 wrote to memory of 2296	2476	svc1.exe	86

C:\Users\Admin\AppData\Local\Temp\svc1.exe
"C:\Users\Admin\AppData\Local\Temp\svc1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2476
- C:\Users\Admin\AppData\Local\Temp\svc1.exe
  "C:\Users\Admin\AppData\Local\Temp\svc1.exe"
  2⤵
  - Checks SCSI registry key(s)
  PID:2296
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2476 -s 816
  2⤵
  - Program crash
  PID:4544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2476 -ip 2476
1⤵
PID:2344

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

Loading Replay Monitor...

Downloads

memory/2296-5-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2296-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2476-0-0x0000000074D5E000-0x0000000074D5F000-memory.dmp

Filesize
4KB

Download
memory/2476-1-0x00000000000A0000-0x00000000000BE000-memory.dmp

Filesize
120KB

Download
memory/2476-2-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/2476-3-0x0000000005120000-0x00000000056C4000-memory.dmp

Filesize
5.6MB

Download
memory/2476-7-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/2476-8-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download