smokeloader | ffb44a5388958cda3be00af5170e3fa51c5bc59e7b6ea659836417a17594d18c

Analysis

max time kernel
207s
max time network
167s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
13-10-2023 02:17

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General

Target

6523.exe
Size

270KB
MD5

2c64d25f93529b36cd27edfda1cac334
SHA1

c5b203ecf73ee3f3ace7991b99ac3e4951767089
SHA256

333303c7b9f0f951ddc68973cc187280287ecdf28dde13bf9f3dd60c572b0d69
SHA512

802be998bacc7b47c50038c5fd28b24778e8d4729985966c9e174dcf89dfe75a16e1b03c41f2ccdd1554e4f260371865293af8abe3ca4f96f85e3f10c139e12f
SSDEEP

3072:7sH37bKH3o0RzJwIu2PuuQcdsMcLK8egt:I37bK7RzJwIueuuQcH2Eg

Score

10^/10

smokeloader backdoor trojan

Malware Config

Extracted

Family

smokeloader

Version

2022

http://potunulit.org/

http://hutnilior.net/

http://bulimu55t.net/

http://soryytlic4.net/

http://novanosa5org.org/

http://nuljjjnuli.org/

http://tolilolihul.net/

http://somatoka51hub.net/

http://hujukui3.net/

http://bukubuka1.net/

http://golilopaster.org/

http://newzelannd66.org/

http://otriluyttn.org/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Deletes itself 1 IoCs

Processes:

pid process

1216
Executes dropped EXE 1 IoCs

Processes:

thdahjj

pid process

2520 thdahjj

pid	process
1216

pid	process
2520	thdahjj

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

Processes:

thdahjj6523.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	thdahjj
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	thdahjj
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	thdahjj
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	6523.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	6523.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	6523.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

6523.exe

pid	process
2632	6523.exe
2632	6523.exe
1216
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

1216
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

6523.exethdahjj

pid process

2632 6523.exe
2520 thdahjj

pid	process
1216

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 2548 wrote to memory of 2520	2548	taskeng.exe	thdahjj
PID 2548 wrote to memory of 2520	2548	taskeng.exe	thdahjj
PID 2548 wrote to memory of 2520	2548	taskeng.exe	thdahjj
PID 2548 wrote to memory of 2520	2548	taskeng.exe	thdahjj

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\6523.exe
"C:\Users\Admin\AppData\Local\Temp\6523.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2632

C:\Windows\system32\taskeng.exe
taskeng.exe {F898F423-DDB0-41B2-AF6F-0DB4B1DC9B94} S-1-5-21-607259312-1573743425-2763420908-1000:NGTQGRML\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2548

C:\Users\Admin\AppData\Roaming\thdahjj
C:\Users\Admin\AppData\Roaming\thdahjj
2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2520

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\thdahjj
Filesize
270KB

MD5
2c64d25f93529b36cd27edfda1cac334

SHA1
c5b203ecf73ee3f3ace7991b99ac3e4951767089

SHA256
333303c7b9f0f951ddc68973cc187280287ecdf28dde13bf9f3dd60c572b0d69

SHA512
802be998bacc7b47c50038c5fd28b24778e8d4729985966c9e174dcf89dfe75a16e1b03c41f2ccdd1554e4f260371865293af8abe3ca4f96f85e3f10c139e12f

Download Submit
C:\Users\Admin\AppData\Roaming\thdahjj
Filesize
270KB

MD5
2c64d25f93529b36cd27edfda1cac334

SHA1
c5b203ecf73ee3f3ace7991b99ac3e4951767089

SHA256
333303c7b9f0f951ddc68973cc187280287ecdf28dde13bf9f3dd60c572b0d69

SHA512
802be998bacc7b47c50038c5fd28b24778e8d4729985966c9e174dcf89dfe75a16e1b03c41f2ccdd1554e4f260371865293af8abe3ca4f96f85e3f10c139e12f

Download Submit
memory/1216-4-0x0000000002AA0000-0x0000000002AB6000-memory.dmp

Filesize
88KB

Download
memory/1216-17-0x0000000002B00000-0x0000000002B16000-memory.dmp

Filesize
88KB

Download
memory/2520-15-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/2520-16-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2520-18-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2632-1-0x00000000007A0000-0x00000000008A0000-memory.dmp

Filesize
1024KB

Download
memory/2632-2-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/2632-3-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2632-5-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2632-7-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download