smokeloader | 1d42ffac5cac86552d8fdc91640a0fd3283caaab57a1e614d5c289304b38fffa

Analysis

max time kernel
150s
max time network
127s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
21/07/2023, 01:00

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General

Target

99c0cf1dd3e620333c751d7b28d85d76c239c7fafcdaa71aeda4dc9b76c77145.exe
Size

30KB
MD5

01097d203000288cc8ef629b9b830dd2
SHA1

c6eec303a933ce067f5d8ac49c6efb21f61142e6
SHA256

99c0cf1dd3e620333c751d7b28d85d76c239c7fafcdaa71aeda4dc9b76c77145
SHA512

8fc00b2bd23606edeee5fd48b51f62245e491698c88461889c2fd79b60ab3e9bdb540beb4c34716d88d83806868619f5af6455742fe585959dbf26541e808afb
SSDEEP

384:K9VD6tee+qUOTd2opQTLAdz1SvNmhpdvOjT7PbA6HBiTSnjxZMdP05ldpRMaYIBI:k6Qe+qUv8zcqdvOXA6XkPslJvGaVW

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
Downloads MZ/PE file

Deletes itself 1 IoCs

pid	Process
1204	Process not Found

Executes dropped EXE 1 IoCs

pid	Process
2816	D28B.exe

Loads dropped DLL 8 IoCs

pid	Process
2700	rundll32.exe
2700	rundll32.exe
2700	rundll32.exe
2700	rundll32.exe
972	rundll32.exe
972	rundll32.exe
972	rundll32.exe
972	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	99c0cf1dd3e620333c751d7b28d85d76c239c7fafcdaa71aeda4dc9b76c77145.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	99c0cf1dd3e620333c751d7b28d85d76c239c7fafcdaa71aeda4dc9b76c77145.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	99c0cf1dd3e620333c751d7b28d85d76c239c7fafcdaa71aeda4dc9b76c77145.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1912	99c0cf1dd3e620333c751d7b28d85d76c239c7fafcdaa71aeda4dc9b76c77145.exe
1912	99c0cf1dd3e620333c751d7b28d85d76c239c7fafcdaa71aeda4dc9b76c77145.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
1912	99c0cf1dd3e620333c751d7b28d85d76c239c7fafcdaa71aeda4dc9b76c77145.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1204	Process not Found

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1204 wrote to memory of 2816	1204	Process not Found	30
PID 1204 wrote to memory of 2816	1204	Process not Found	30
PID 1204 wrote to memory of 2816	1204	Process not Found	30
PID 1204 wrote to memory of 2816	1204	Process not Found	30
PID 2816 wrote to memory of 2920	2816	D28B.exe	31
PID 2816 wrote to memory of 2920	2816	D28B.exe	31
PID 2816 wrote to memory of 2920	2816	D28B.exe	31
PID 2816 wrote to memory of 2920	2816	D28B.exe	31
PID 2920 wrote to memory of 2700	2920	control.exe	32
PID 2920 wrote to memory of 2700	2920	control.exe	32
PID 2920 wrote to memory of 2700	2920	control.exe	32
PID 2920 wrote to memory of 2700	2920	control.exe	32
PID 2920 wrote to memory of 2700	2920	control.exe	32
PID 2920 wrote to memory of 2700	2920	control.exe	32
PID 2920 wrote to memory of 2700	2920	control.exe	32
PID 2700 wrote to memory of 1144	2700	rundll32.exe	33
PID 2700 wrote to memory of 1144	2700	rundll32.exe	33
PID 2700 wrote to memory of 1144	2700	rundll32.exe	33
PID 2700 wrote to memory of 1144	2700	rundll32.exe	33
PID 1144 wrote to memory of 972	1144	RunDll32.exe	34
PID 1144 wrote to memory of 972	1144	RunDll32.exe	34
PID 1144 wrote to memory of 972	1144	RunDll32.exe	34
PID 1144 wrote to memory of 972	1144	RunDll32.exe	34
PID 1144 wrote to memory of 972	1144	RunDll32.exe	34
PID 1144 wrote to memory of 972	1144	RunDll32.exe	34
PID 1144 wrote to memory of 972	1144	RunDll32.exe	34

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\99c0cf1dd3e620333c751d7b28d85d76c239c7fafcdaa71aeda4dc9b76c77145.exe
"C:\Users\Admin\AppData\Local\Temp\99c0cf1dd3e620333c751d7b28d85d76c239c7fafcdaa71aeda4dc9b76c77145.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1912

C:\Users\Admin\AppData\Local\Temp\D28B.exe
C:\Users\Admin\AppData\Local\Temp\D28B.exe
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\SysWOW64\control.exe
  "C:\Windows\System32\control.exe" "C:\Users\Admin\AppData\Local\Temp\AZUAWK.CPL",
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2920
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\system32\rundll32.exe" Shell32.dll,Control_RunDLL "C:\Users\Admin\AppData\Local\Temp\AZUAWK.CPL",
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:2700
  - - C:\Windows\system32\RunDll32.exe
      C:\Windows\system32\RunDll32.exe Shell32.dll,Control_RunDLL "C:\Users\Admin\AppData\Local\Temp\AZUAWK.CPL",
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1144
    - - C:\Windows\SysWOW64\rundll32.exe
        
        "C:\Windows\SysWOW64\rundll32.exe" "C:\Windows\SysWOW64\shell32.dll",#44 "C:\Users\Admin\AppData\Local\Temp\AZUAWK.CPL",
        5⤵
        Loads dropped DLL
        
        PID:972

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\Local\Temp\AZUAWK.CPL

Filesize
1.2MB

MD5
6678ff541ad68a47a8bbbe217ab739f8

SHA1
3a43e3a903f217b3dae55837877bfa53f6db0019

SHA256
f9e2d9fb4044a1025e27eaa3280db5cb042be491edbe29d3c86f543377f99d17

SHA512
b9541aa2a54383ba55ce7cce13434d8a82c4d77eda39e8144f903af0ff74a2d8f712ca2abe437b4094b18ec19c3f8a337a15c2fc12c0d14181f35b986f4c4db6

Download Submit
C:\Users\Admin\AppData\Local\Temp\D28B.exe

Filesize
1.5MB

MD5
985f48adeb0b295a4975f767303e2a09

SHA1
89709c33a4fb3683b4932bbd93f0857bfdd746e3

SHA256
1bbe3ed2b3cbc696f1ffdf45dd12b02f367ff165e5ffe12bb3efb82104817eea

SHA512
5e105ab03e00ec9b91d7efc65fdc786cc6be2d10f8f7d9d4caa3742c4fae6c6085dc789f2ccb3320c59bc31bbabf2f06161e43a18490b07c5095566746729832

Download Submit
C:\Users\Admin\AppData\Local\Temp\D28B.exe

Filesize
1.5MB

MD5
985f48adeb0b295a4975f767303e2a09

SHA1
89709c33a4fb3683b4932bbd93f0857bfdd746e3

SHA256
1bbe3ed2b3cbc696f1ffdf45dd12b02f367ff165e5ffe12bb3efb82104817eea

SHA512
5e105ab03e00ec9b91d7efc65fdc786cc6be2d10f8f7d9d4caa3742c4fae6c6085dc789f2ccb3320c59bc31bbabf2f06161e43a18490b07c5095566746729832

Download Submit
\Users\Admin\AppData\Local\Temp\AZUAWK.cpl

Filesize
1.2MB

MD5
6678ff541ad68a47a8bbbe217ab739f8

SHA1
3a43e3a903f217b3dae55837877bfa53f6db0019

SHA256
f9e2d9fb4044a1025e27eaa3280db5cb042be491edbe29d3c86f543377f99d17

SHA512
b9541aa2a54383ba55ce7cce13434d8a82c4d77eda39e8144f903af0ff74a2d8f712ca2abe437b4094b18ec19c3f8a337a15c2fc12c0d14181f35b986f4c4db6

Download Submit
\Users\Admin\AppData\Local\Temp\AZUAWK.cpl

Filesize
1.2MB

MD5
6678ff541ad68a47a8bbbe217ab739f8

SHA1
3a43e3a903f217b3dae55837877bfa53f6db0019

SHA256
f9e2d9fb4044a1025e27eaa3280db5cb042be491edbe29d3c86f543377f99d17

SHA512
b9541aa2a54383ba55ce7cce13434d8a82c4d77eda39e8144f903af0ff74a2d8f712ca2abe437b4094b18ec19c3f8a337a15c2fc12c0d14181f35b986f4c4db6

Download Submit
\Users\Admin\AppData\Local\Temp\AZUAWK.cpl

Filesize
1.2MB

MD5
6678ff541ad68a47a8bbbe217ab739f8

SHA1
3a43e3a903f217b3dae55837877bfa53f6db0019

SHA256
f9e2d9fb4044a1025e27eaa3280db5cb042be491edbe29d3c86f543377f99d17

SHA512
b9541aa2a54383ba55ce7cce13434d8a82c4d77eda39e8144f903af0ff74a2d8f712ca2abe437b4094b18ec19c3f8a337a15c2fc12c0d14181f35b986f4c4db6

Download Submit
\Users\Admin\AppData\Local\Temp\AZUAWK.cpl

Filesize
1.2MB

MD5
6678ff541ad68a47a8bbbe217ab739f8

SHA1
3a43e3a903f217b3dae55837877bfa53f6db0019

SHA256
f9e2d9fb4044a1025e27eaa3280db5cb042be491edbe29d3c86f543377f99d17

SHA512
b9541aa2a54383ba55ce7cce13434d8a82c4d77eda39e8144f903af0ff74a2d8f712ca2abe437b4094b18ec19c3f8a337a15c2fc12c0d14181f35b986f4c4db6

Download Submit
\Users\Admin\AppData\Local\Temp\AZUAWK.cpl

Filesize
1.2MB

MD5
6678ff541ad68a47a8bbbe217ab739f8

SHA1
3a43e3a903f217b3dae55837877bfa53f6db0019

SHA256
f9e2d9fb4044a1025e27eaa3280db5cb042be491edbe29d3c86f543377f99d17

SHA512
b9541aa2a54383ba55ce7cce13434d8a82c4d77eda39e8144f903af0ff74a2d8f712ca2abe437b4094b18ec19c3f8a337a15c2fc12c0d14181f35b986f4c4db6

Download Submit
\Users\Admin\AppData\Local\Temp\AZUAWK.cpl

Filesize
1.2MB

MD5
6678ff541ad68a47a8bbbe217ab739f8

SHA1
3a43e3a903f217b3dae55837877bfa53f6db0019

SHA256
f9e2d9fb4044a1025e27eaa3280db5cb042be491edbe29d3c86f543377f99d17

SHA512
b9541aa2a54383ba55ce7cce13434d8a82c4d77eda39e8144f903af0ff74a2d8f712ca2abe437b4094b18ec19c3f8a337a15c2fc12c0d14181f35b986f4c4db6

Download Submit
\Users\Admin\AppData\Local\Temp\AZUAWK.cpl

Filesize
1.2MB

MD5
6678ff541ad68a47a8bbbe217ab739f8

SHA1
3a43e3a903f217b3dae55837877bfa53f6db0019

SHA256
f9e2d9fb4044a1025e27eaa3280db5cb042be491edbe29d3c86f543377f99d17

SHA512
b9541aa2a54383ba55ce7cce13434d8a82c4d77eda39e8144f903af0ff74a2d8f712ca2abe437b4094b18ec19c3f8a337a15c2fc12c0d14181f35b986f4c4db6

Download Submit
\Users\Admin\AppData\Local\Temp\AZUAWK.cpl

Filesize
1.2MB

MD5
6678ff541ad68a47a8bbbe217ab739f8

SHA1
3a43e3a903f217b3dae55837877bfa53f6db0019

SHA256
f9e2d9fb4044a1025e27eaa3280db5cb042be491edbe29d3c86f543377f99d17

SHA512
b9541aa2a54383ba55ce7cce13434d8a82c4d77eda39e8144f903af0ff74a2d8f712ca2abe437b4094b18ec19c3f8a337a15c2fc12c0d14181f35b986f4c4db6

Download Submit
memory/972-96-0x0000000002780000-0x0000000002878000-memory.dmp

Filesize
992KB

Download
memory/972-100-0x0000000002880000-0x000000000295F000-memory.dmp

Filesize
892KB

Download
memory/972-97-0x0000000002880000-0x000000000295F000-memory.dmp

Filesize
892KB

Download
memory/972-101-0x0000000002880000-0x000000000295F000-memory.dmp

Filesize
892KB

Download
memory/972-90-0x00000000021B0000-0x00000000022E3000-memory.dmp

Filesize
1.2MB

Download
memory/972-91-0x00000000021B0000-0x00000000022E3000-memory.dmp

Filesize
1.2MB

Download
memory/972-92-0x00000000001F0000-0x00000000001F6000-memory.dmp

Filesize
24KB

Download
memory/1204-54-0x0000000002AD0000-0x0000000002AE6000-memory.dmp

Filesize
88KB

Download
memory/1912-53-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1912-55-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2700-74-0x0000000002440000-0x0000000002573000-memory.dmp

Filesize
1.2MB

Download
memory/2700-85-0x00000000026A0000-0x000000000277F000-memory.dmp

Filesize
892KB

Download
memory/2700-84-0x00000000026A0000-0x000000000277F000-memory.dmp

Filesize
892KB

Download
memory/2700-81-0x00000000026A0000-0x000000000277F000-memory.dmp

Filesize
892KB

Download
memory/2700-80-0x0000000002020000-0x0000000002118000-memory.dmp

Filesize
992KB

Download
memory/2700-76-0x0000000000180000-0x0000000000186000-memory.dmp

Filesize
24KB

Download
memory/2700-75-0x0000000002440000-0x0000000002573000-memory.dmp

Filesize
1.2MB

Download