smokeloader | 518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668

Resubmissions

19/09/2023, 04:11

230919-er9tpagh34 10

19/09/2023, 03:45

230919-ebecvagg26 10

Analysis

max time kernel
60s
max time network
62s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
19/09/2023, 04:11

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668.exe
Size

261KB
MD5

a02bd32ecd3b37c281c025342a64c82f
SHA1

3c1e86d948dc5edb0b5d76339cb516bbdf10cfb6
SHA256

518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668
SHA512

82d030db1ba5cbc617c69cdd801421c3981ab28c13df95d3de5c32d61b186ea39829dd6502067a755da851ad8cd72344bc92b36582b142a89c437de7057042a6
SSDEEP

6144:YJvJm09zORs+z/TMify9DAOnqQHtQhRLfgZ8/:Ypw09CK5NACQhy8/

Score

10^/10

smokeloader backdoor trojan

Malware Config

Extracted

Family

smokeloader

Version

2022

http://77.91.68.29/fks/

rc4.i32

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2452 set thread context of 1548	2452	518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668.exe	28

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1548	AppLaunch.exe
1548	AppLaunch.exe
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found
1244	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1244	Process not Found

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1548	AppLaunch.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2452 wrote to memory of 1548	2452	518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668.exe	28
PID 2452 wrote to memory of 1548	2452	518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668.exe	28
PID 2452 wrote to memory of 1548	2452	518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668.exe	28
PID 2452 wrote to memory of 1548	2452	518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668.exe	28
PID 2452 wrote to memory of 1548	2452	518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668.exe	28
PID 2452 wrote to memory of 1548	2452	518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668.exe	28
PID 2452 wrote to memory of 1548	2452	518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668.exe	28
PID 2452 wrote to memory of 1548	2452	518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668.exe	28
PID 2452 wrote to memory of 1548	2452	518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668.exe	28
PID 2452 wrote to memory of 1548	2452	518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668.exe	28

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668.exe
"C:\Users\Admin\AppData\Local\Temp\518aecef5bf06256a9fac8534575ed87360c78e102cd27c55d0635cb98551668.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2452
- 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)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:1548

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

Loading Replay Monitor...

Downloads

memory/1244-5-0x0000000002970000-0x0000000002986000-memory.dmp

Filesize
88KB

Download
memory/1244-12-0x000007FEF5810000-0x000007FEF5953000-memory.dmp

Filesize
1.3MB

Download
memory/1244-13-0x000007FEF3120000-0x000007FEF312A000-memory.dmp

Filesize
40KB

Download
memory/1548-0-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1548-1-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1548-2-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1548-3-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1548-4-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1548-6-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download