smokeloader | 8f7ecfcea350d8e91e6bb9083833f37b57aa78d15022b68c407055e2463bd982

Analysis

max time kernel
140s
max time network
110s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 18:55

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General

Target

b4b999d8f3fb923a4d4cd17b173ba8474c698443430fdc63b8da6ad6eae57d50.exe
Size

269KB
MD5

c019e19af0d4a7b3c4c51f45c50c7d9f
SHA1

ea0f9c0365bbc8aa19f43556c5552657d218af8c
SHA256

b4b999d8f3fb923a4d4cd17b173ba8474c698443430fdc63b8da6ad6eae57d50
SHA512

eb6ee1e040b6b593d60d5f4cacfdbd7db65977789a3035ab1640afd9aa2f2be055137289100f91a8e2b85156124b157ef5d4435bae4d9893c24277542699494d
SSDEEP

3072:VjT/e0ctZI6461YHBe6Itf1/iTY6ce6pn++RcNLkBHgDK6gpRnUuEeAg0FujD7zO:VjxctlMQMY6Vo++E0R6gFAOfLh6zd35

Score

10^/10

smokeloader backdoor 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 1204 set thread context of 644	1204	b4b999d8f3fb923a4d4cd17b173ba8474c698443430fdc63b8da6ad6eae57d50.exe	83

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1016	1204	WerFault.exe	82

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 enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1204 wrote to memory of 644	1204	b4b999d8f3fb923a4d4cd17b173ba8474c698443430fdc63b8da6ad6eae57d50.exe	83
PID 1204 wrote to memory of 644	1204	b4b999d8f3fb923a4d4cd17b173ba8474c698443430fdc63b8da6ad6eae57d50.exe	83
PID 1204 wrote to memory of 644	1204	b4b999d8f3fb923a4d4cd17b173ba8474c698443430fdc63b8da6ad6eae57d50.exe	83
PID 1204 wrote to memory of 644	1204	b4b999d8f3fb923a4d4cd17b173ba8474c698443430fdc63b8da6ad6eae57d50.exe	83
PID 1204 wrote to memory of 644	1204	b4b999d8f3fb923a4d4cd17b173ba8474c698443430fdc63b8da6ad6eae57d50.exe	83
PID 1204 wrote to memory of 644	1204	b4b999d8f3fb923a4d4cd17b173ba8474c698443430fdc63b8da6ad6eae57d50.exe	83

C:\Users\Admin\AppData\Local\Temp\b4b999d8f3fb923a4d4cd17b173ba8474c698443430fdc63b8da6ad6eae57d50.exe
"C:\Users\Admin\AppData\Local\Temp\b4b999d8f3fb923a4d4cd17b173ba8474c698443430fdc63b8da6ad6eae57d50.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  - Checks SCSI registry key(s)
  PID:644
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1204 -s 308
  2⤵
  - Program crash
  PID:1016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1204 -ip 1204
1⤵
PID:4896

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/644-0-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/644-1-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download