smokeloader | ecd4c889163fd386f6e9e96423c1a66d0427da57d5410bd6bc0bcd68dc0fcca1

Analysis

max time kernel
150s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
29-03-2023 01:33

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General

Target

setup.exe
Size

223KB
MD5

59123acddd545054b3385d8ead1c6cb9
SHA1

2106827335c1b4fcb3d58e7c4eef40d767102511
SHA256

ecd4c889163fd386f6e9e96423c1a66d0427da57d5410bd6bc0bcd68dc0fcca1
SHA512

f77c8cdfa3f73604105ac53fbff6a8f9da0a7f955937cff1a855f57e13e72abf7824f3fb821e5d72ae85690834318a242c568b4ea6aeb7cf79831b252aafea4c
SSDEEP

3072:4591nCMyxJ5hwDGQs7Mi+ic0orjiFcBT6SRUOV9O0yaEY:sHtoA8yI2T6m8

Score

10^/10

smokeloader lab backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

lab

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
Suspicious use of SetThreadContext 1 IoCs

Processes:

setup.exe

description pid process target process

PID 1696 set thread context of 1864 1696 setup.exe setup.exe

description	pid	process	target process
PID 1696 set thread context of 1864	1696	setup.exe	setup.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

Processes:

setup.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	setup.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	setup.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	setup.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

setup.exe

pid	process
1864	setup.exe
1864	setup.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

1252
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

setup.exe

pid process

1864 setup.exe

pid	process
1252

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

setup.exe

description	pid	process	target process
PID 1696 wrote to memory of 1864	1696	setup.exe	setup.exe
PID 1696 wrote to memory of 1864	1696	setup.exe	setup.exe
PID 1696 wrote to memory of 1864	1696	setup.exe	setup.exe
PID 1696 wrote to memory of 1864	1696	setup.exe	setup.exe
PID 1696 wrote to memory of 1864	1696	setup.exe	setup.exe
PID 1696 wrote to memory of 1864	1696	setup.exe	setup.exe
PID 1696 wrote to memory of 1864	1696	setup.exe	setup.exe
PID 1696 wrote to memory of 1864	1696	setup.exe	setup.exe
PID 1696 wrote to memory of 1864	1696	setup.exe	setup.exe
PID 1696 wrote to memory of 1864	1696	setup.exe	setup.exe

C:\Users\Admin\AppData\Local\Temp\setup.exe
"C:\Users\Admin\AppData\Local\Temp\setup.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1696
- C:\Users\Admin\AppData\Local\Temp\setup.exe
  "C:\Users\Admin\AppData\Local\Temp\setup.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:1864

Network

MITRE ATT&CK Enterprise v6

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/1252-59-0x0000000002A30000-0x0000000002A46000-memory.dmp

Filesize
88KB

Download
memory/1696-57-0x0000000000240000-0x0000000000249000-memory.dmp

Filesize
36KB

Download
memory/1864-55-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1864-56-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1864-58-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1864-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download