smokeloader | cdd4ad75553bf6d0221d92109a38a6d30df3bcb2b09b6f0ac43d380e66621954

Analysis

max time kernel
150s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
14/01/2023, 03:19

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

file.exe
Size

260KB
MD5

8dd7b8847ca62948271c0ca8337e0ea8
SHA1

d57305487a10efbe9ceb289aa3cfd321bb441e37
SHA256

cdd4ad75553bf6d0221d92109a38a6d30df3bcb2b09b6f0ac43d380e66621954
SHA512

94857a53c5e3e5445e8bf13b66ddc6d0b9f5d918e47a77c1d4a60c4709480296aab20aa3c695a2c650e92c973d91074050ed5be3decfdf9fd7451f567e7dd9f9
SSDEEP

3072:KXmxUC4d5Vokvx4Y2Xg6biUbxhxIEl8apb8pBI8jwWRjoV:qBBx4JFppgpRjFE

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 6 IoCs

resource	yara_rule
behavioral2/memory/1976-133-0x00000000048E0000-0x00000000048E9000-memory.dmp	family_smokeloader
behavioral2/memory/3916-135-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/3916-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/3916-138-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/316-145-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/316-146-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Executes dropped EXE 2 IoCs

pid	Process
3892	veseebu
316	veseebu

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1976 set thread context of 3916	1976	file.exe	80
PID 3892 set thread context of 316	3892	veseebu	89

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	file.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	veseebu
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	veseebu
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	veseebu

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3916	file.exe
3916	file.exe
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found
2724	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2724	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3916	file.exe
316	veseebu

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2724	Process not Found
Token: SeCreatePagefilePrivilege	2724	Process not Found

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 3916	1976	file.exe	80
PID 1976 wrote to memory of 3916	1976	file.exe	80
PID 1976 wrote to memory of 3916	1976	file.exe	80
PID 1976 wrote to memory of 3916	1976	file.exe	80
PID 1976 wrote to memory of 3916	1976	file.exe	80
PID 1976 wrote to memory of 3916	1976	file.exe	80
PID 3892 wrote to memory of 316	3892	veseebu	89
PID 3892 wrote to memory of 316	3892	veseebu	89
PID 3892 wrote to memory of 316	3892	veseebu	89
PID 3892 wrote to memory of 316	3892	veseebu	89
PID 3892 wrote to memory of 316	3892	veseebu	89
PID 3892 wrote to memory of 316	3892	veseebu	89

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Users\Admin\AppData\Local\Temp\file.exe
  "C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:3916

C:\Users\Admin\AppData\Roaming\veseebu
C:\Users\Admin\AppData\Roaming\veseebu
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3892
- C:\Users\Admin\AppData\Roaming\veseebu
  C:\Users\Admin\AppData\Roaming\veseebu
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:316

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\veseebu

Filesize
260KB

MD5
8dd7b8847ca62948271c0ca8337e0ea8

SHA1
d57305487a10efbe9ceb289aa3cfd321bb441e37

SHA256
cdd4ad75553bf6d0221d92109a38a6d30df3bcb2b09b6f0ac43d380e66621954

SHA512
94857a53c5e3e5445e8bf13b66ddc6d0b9f5d918e47a77c1d4a60c4709480296aab20aa3c695a2c650e92c973d91074050ed5be3decfdf9fd7451f567e7dd9f9

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

Filesize
260KB

MD5
8dd7b8847ca62948271c0ca8337e0ea8

SHA1
d57305487a10efbe9ceb289aa3cfd321bb441e37

SHA256
cdd4ad75553bf6d0221d92109a38a6d30df3bcb2b09b6f0ac43d380e66621954

SHA512
94857a53c5e3e5445e8bf13b66ddc6d0b9f5d918e47a77c1d4a60c4709480296aab20aa3c695a2c650e92c973d91074050ed5be3decfdf9fd7451f567e7dd9f9

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

Filesize
260KB

MD5
8dd7b8847ca62948271c0ca8337e0ea8

SHA1
d57305487a10efbe9ceb289aa3cfd321bb441e37

SHA256
cdd4ad75553bf6d0221d92109a38a6d30df3bcb2b09b6f0ac43d380e66621954

SHA512
94857a53c5e3e5445e8bf13b66ddc6d0b9f5d918e47a77c1d4a60c4709480296aab20aa3c695a2c650e92c973d91074050ed5be3decfdf9fd7451f567e7dd9f9

Download Submit
memory/316-146-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/316-145-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1976-133-0x00000000048E0000-0x00000000048E9000-memory.dmp

Filesize
36KB

Download
memory/1976-132-0x0000000002E3D000-0x0000000002E4D000-memory.dmp

Filesize
64KB

Download
memory/1976-136-0x0000000002E3D000-0x0000000002E4D000-memory.dmp

Filesize
64KB

Download
memory/3892-144-0x0000000002E7D000-0x0000000002E8E000-memory.dmp

Filesize
68KB

Download
memory/3916-135-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3916-138-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3916-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download