smokeloader | b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f

Analysis

max time kernel
153s
max time network
129s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
12-10-2023 02:06

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General

Target

b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe
Size

321KB
MD5

69571d8b5030df70fa48bd4ae9b51fb9
SHA1

a0f5ac47f33b8560f7a08c2774864c50386c29ea
SHA256

b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f
SHA512

12774fc2be7db6fb5437f00acc4f99b1f423b5df34d3fa5d5498a5e85361791514fb1911513a578742dbda728a38402d84f3cfbee94b3c753215c71a1c5a7821
SSDEEP

3072:kjEx0qhF76kmDTVXvqgkpFyhiK1jagLGh8aAlcYU7T1T7C4X7LcrtxdB:oExhhV6kmDTV/qDyrjaR8XJ8T1TFq

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
1348	Process not Found

Executes dropped EXE 2 IoCs

pid	Process
2680	iihfaha
2744	iihfaha

Loads dropped DLL 1 IoCs

pid	Process
2680	iihfaha

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2544 set thread context of 2052	2544	b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe	28
PID 2680 set thread context of 2744	2680	iihfaha	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	iihfaha
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	iihfaha
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	iihfaha
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2052	b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe
2052	b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found
1348	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1348	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2052	b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe
2744	iihfaha

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2544 wrote to memory of 2052	2544	b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe	28
PID 2544 wrote to memory of 2052	2544	b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe	28
PID 2544 wrote to memory of 2052	2544	b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe	28
PID 2544 wrote to memory of 2052	2544	b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe	28
PID 2544 wrote to memory of 2052	2544	b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe	28
PID 2544 wrote to memory of 2052	2544	b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe	28
PID 2544 wrote to memory of 2052	2544	b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe	28
PID 2304 wrote to memory of 2680	2304	taskeng.exe	32
PID 2304 wrote to memory of 2680	2304	taskeng.exe	32
PID 2304 wrote to memory of 2680	2304	taskeng.exe	32
PID 2304 wrote to memory of 2680	2304	taskeng.exe	32
PID 2680 wrote to memory of 2744	2680	iihfaha	33
PID 2680 wrote to memory of 2744	2680	iihfaha	33
PID 2680 wrote to memory of 2744	2680	iihfaha	33
PID 2680 wrote to memory of 2744	2680	iihfaha	33
PID 2680 wrote to memory of 2744	2680	iihfaha	33
PID 2680 wrote to memory of 2744	2680	iihfaha	33
PID 2680 wrote to memory of 2744	2680	iihfaha	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\b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe
"C:\Users\Admin\AppData\Local\Temp\b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2544
- C:\Users\Admin\AppData\Local\Temp\b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe
  "C:\Users\Admin\AppData\Local\Temp\b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:2052

C:\Windows\system32\taskeng.exe
taskeng.exe {445A41D0-72B3-42AC-A7A2-49835778EFAC} S-1-5-21-3185155662-718608226-894467740-1000:YETUIZPU\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Users\Admin\AppData\Roaming\iihfaha
  C:\Users\Admin\AppData\Roaming\iihfaha
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2680
- - C:\Users\Admin\AppData\Roaming\iihfaha
    C:\Users\Admin\AppData\Roaming\iihfaha
    3⤵
    - Executes dropped EXE
    - Checks SCSI registry key(s)
    - Suspicious behavior: MapViewOfSection
    PID:2744

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\iihfaha

Filesize
321KB

MD5
69571d8b5030df70fa48bd4ae9b51fb9

SHA1
a0f5ac47f33b8560f7a08c2774864c50386c29ea

SHA256
b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f

SHA512
12774fc2be7db6fb5437f00acc4f99b1f423b5df34d3fa5d5498a5e85361791514fb1911513a578742dbda728a38402d84f3cfbee94b3c753215c71a1c5a7821

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

Filesize
321KB

MD5
69571d8b5030df70fa48bd4ae9b51fb9

SHA1
a0f5ac47f33b8560f7a08c2774864c50386c29ea

SHA256
b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f

SHA512
12774fc2be7db6fb5437f00acc4f99b1f423b5df34d3fa5d5498a5e85361791514fb1911513a578742dbda728a38402d84f3cfbee94b3c753215c71a1c5a7821

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

Filesize
321KB

MD5
69571d8b5030df70fa48bd4ae9b51fb9

SHA1
a0f5ac47f33b8560f7a08c2774864c50386c29ea

SHA256
b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f

SHA512
12774fc2be7db6fb5437f00acc4f99b1f423b5df34d3fa5d5498a5e85361791514fb1911513a578742dbda728a38402d84f3cfbee94b3c753215c71a1c5a7821

Download Submit
\Users\Admin\AppData\Roaming\iihfaha

Filesize
321KB

MD5
69571d8b5030df70fa48bd4ae9b51fb9

SHA1
a0f5ac47f33b8560f7a08c2774864c50386c29ea

SHA256
b351eec5ba7867286296879d049320b0fbed7200fba224236c5bdd40d688fd8f

SHA512
12774fc2be7db6fb5437f00acc4f99b1f423b5df34d3fa5d5498a5e85361791514fb1911513a578742dbda728a38402d84f3cfbee94b3c753215c71a1c5a7821

Download Submit
memory/1348-17-0x000007FEF5CC0000-0x000007FEF5E03000-memory.dmp

Filesize
1.3MB

Download
memory/1348-28-0x00000000026F0000-0x0000000002706000-memory.dmp

Filesize
88KB

Download
memory/1348-8-0x00000000021E0000-0x00000000021F6000-memory.dmp

Filesize
88KB

Download
memory/1348-18-0x000007FE9F480000-0x000007FE9F48A000-memory.dmp

Filesize
40KB

Download
memory/2052-6-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2052-9-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2052-7-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2052-5-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2052-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2544-13-0x0000000002720000-0x0000000002820000-memory.dmp

Filesize
1024KB

Download
memory/2544-1-0x0000000002720000-0x0000000002820000-memory.dmp

Filesize
1024KB

Download
memory/2544-2-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/2680-23-0x0000000002740000-0x0000000002840000-memory.dmp

Filesize
1024KB

Download