smokeloader | 49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993

Analysis

max time kernel
151s
max time network
125s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
12/10/2023, 08:26

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General

Target

49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe
Size

202KB
MD5

1b724e340ee53cd445b6c60911991692
SHA1

6c9011fb25abd367653f9cb0db78e35d49f462d2
SHA256

49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993
SHA512

02102e81a91046ca72b68aab8bd25fade76cfd959ba8ab4437f78efedfcddf8ddd2fe609326f5c83692423740718425a83359851b4674a495ada96bcd4a8dbec
SSDEEP

3072:LRXWIaJCzr3cbrummBdt/YQEPnW7fL5uhwe2:BZaQ3BmYaoch

Score

10^/10

smokeloader up3 backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32

Signatures

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

Deletes itself 1 IoCs

pid	Process
1204	Process not Found

Executes dropped EXE 2 IoCs

pid	Process
2496	jwavfsd
2364	jwavfsd

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3020 set thread context of 2648	3020	49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe	28
PID 2496 set thread context of 2364	2496	jwavfsd	33

Checks SCSI registry key(s) 3 TTPs 6 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	49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	jwavfsd
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	jwavfsd
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	jwavfsd

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2648	49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe
2648	49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1204	Process not Found

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2648	49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3020 wrote to memory of 2648	3020	49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe	28
PID 3020 wrote to memory of 2648	3020	49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe	28
PID 3020 wrote to memory of 2648	3020	49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe	28
PID 3020 wrote to memory of 2648	3020	49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe	28
PID 3020 wrote to memory of 2648	3020	49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe	28
PID 3020 wrote to memory of 2648	3020	49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe	28
PID 3020 wrote to memory of 2648	3020	49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe	28
PID 2440 wrote to memory of 2496	2440	taskeng.exe	32
PID 2440 wrote to memory of 2496	2440	taskeng.exe	32
PID 2440 wrote to memory of 2496	2440	taskeng.exe	32
PID 2440 wrote to memory of 2496	2440	taskeng.exe	32
PID 2496 wrote to memory of 2364	2496	jwavfsd	33
PID 2496 wrote to memory of 2364	2496	jwavfsd	33
PID 2496 wrote to memory of 2364	2496	jwavfsd	33
PID 2496 wrote to memory of 2364	2496	jwavfsd	33
PID 2496 wrote to memory of 2364	2496	jwavfsd	33
PID 2496 wrote to memory of 2364	2496	jwavfsd	33
PID 2496 wrote to memory of 2364	2496	jwavfsd	33

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\49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe
"C:\Users\Admin\AppData\Local\Temp\49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Users\Admin\AppData\Local\Temp\49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe
  "C:\Users\Admin\AppData\Local\Temp\49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:2648

C:\Windows\system32\taskeng.exe
taskeng.exe {8EA77476-4BF7-4FC3-AFD9-29B6FCD7D629} S-1-5-21-86725733-3001458681-3405935542-1000:ZWKQHIWB\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Users\Admin\AppData\Roaming\jwavfsd
  C:\Users\Admin\AppData\Roaming\jwavfsd
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2496
- - C:\Users\Admin\AppData\Roaming\jwavfsd
    C:\Users\Admin\AppData\Roaming\jwavfsd
    3⤵
    - Executes dropped EXE
    - Checks SCSI registry key(s)
    PID:2364

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

C:\Users\Admin\AppData\Roaming\jwavfsd

Filesize
202KB

MD5
1b724e340ee53cd445b6c60911991692

SHA1
6c9011fb25abd367653f9cb0db78e35d49f462d2

SHA256
49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993

SHA512
02102e81a91046ca72b68aab8bd25fade76cfd959ba8ab4437f78efedfcddf8ddd2fe609326f5c83692423740718425a83359851b4674a495ada96bcd4a8dbec

Download Submit
C:\Users\Admin\AppData\Roaming\jwavfsd

Filesize
202KB

MD5
1b724e340ee53cd445b6c60911991692

SHA1
6c9011fb25abd367653f9cb0db78e35d49f462d2

SHA256
49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993

SHA512
02102e81a91046ca72b68aab8bd25fade76cfd959ba8ab4437f78efedfcddf8ddd2fe609326f5c83692423740718425a83359851b4674a495ada96bcd4a8dbec

Download Submit
C:\Users\Admin\AppData\Roaming\jwavfsd

Filesize
202KB

MD5
1b724e340ee53cd445b6c60911991692

SHA1
6c9011fb25abd367653f9cb0db78e35d49f462d2

SHA256
49982383c33b6e66bfd98ce748423b0d893013eee21d2124610073fd674a3993

SHA512
02102e81a91046ca72b68aab8bd25fade76cfd959ba8ab4437f78efedfcddf8ddd2fe609326f5c83692423740718425a83359851b4674a495ada96bcd4a8dbec

Download Submit
memory/1204-7-0x0000000002A90000-0x0000000002AA6000-memory.dmp

Filesize
88KB

Download
memory/2364-21-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2648-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-4-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2648-6-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2648-8-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3020-0-0x0000000000220000-0x0000000000235000-memory.dmp

Filesize
84KB

Download
memory/3020-1-0x0000000000240000-0x0000000000249000-memory.dmp

Filesize
36KB

Download
memory/3020-5-0x0000000000220000-0x0000000000235000-memory.dmp

Filesize
84KB

Download