smokeloader | c90647b4b0d2c8e11dc1eaff07e21d625994ff76613234bd66ea136db23cfe52

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-12-2024 13:54

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General

Target

25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.exe
Size

260KB
MD5

ae3447d506e97ab1cec8c259b2b3ceed
SHA1

fa8f02bed629fd98d6525a5e4683245c81df8fe2
SHA256

25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8
SHA512

e5568e96548253f46053a4194a6cc53f49e0f2c149377069bf073da7fd67f6c4e65fbe6d4a4503c4c75a1f64ce24660d81e351382b2bcefcffab0458290897d0
SSDEEP

3072:5ZlSBYz5nLB3Tevz58O9CS9FjbpQQ72JbpSeq+Sg7oEaVVlM/h3:RSBetLFTA9FjNQ02nSmY

Score

10^/10

smokeloader pub1 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1680 set thread context of 4072	1680	25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.exe	83

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 4072	1680	25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.exe	83
PID 1680 wrote to memory of 4072	1680	25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.exe	83
PID 1680 wrote to memory of 4072	1680	25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.exe	83
PID 1680 wrote to memory of 4072	1680	25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.exe	83
PID 1680 wrote to memory of 4072	1680	25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.exe	83
PID 1680 wrote to memory of 4072	1680	25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.exe	83

C:\Users\Admin\AppData\Local\Temp\25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.exe
"C:\Users\Admin\AppData\Local\Temp\25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Users\Admin\AppData\Local\Temp\25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.exe
  "C:\Users\Admin\AppData\Local\Temp\25914384c363bf92d3fca8d2eaedeea6c1b55ea4082bd20ed0645d422c9978a8.exe"
  2⤵
  - Checks SCSI registry key(s)
  PID:4072

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1680-1-0x0000000002C30000-0x0000000002D30000-memory.dmp

Filesize
1024KB

Download
memory/1680-2-0x0000000003090000-0x0000000003099000-memory.dmp

Filesize
36KB

Download
memory/4072-3-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4072-4-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4072-5-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download