smokeloader | c8bb0b37a1d76c6614cd920da95a14a3abe7a6981306fbfb296b5e18a1c47d0b

Analysis

max time kernel
92s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-09-2024 08:54

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General

Target

build2.exe
Size

13KB
MD5

a7416a6f5174d4e187a8425fbd03d083
SHA1

e3b3571bf5f685e059e4deafda10767e8022b520
SHA256

c8bb0b37a1d76c6614cd920da95a14a3abe7a6981306fbfb296b5e18a1c47d0b
SHA512

d6255bb0d9c1cdf66a01942b96d9897d1e32ff78a019b52343079ea2f8dff04a79662f3eac687276d63c73fce0cd557b76b1d61ab2bc92badd1fd6a064f38d67
SSDEEP

192:vBAlEMZWAY5nCtCY61l40CMvPSohzWLz5xWfgOQ/muu/d5THm4OtkO:JAnLAXNy/m3/bTKkO

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Version

2017

http://dogewareservice.ru/

Signatures

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

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk 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\Services\Disk\Enum	build2.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	build2.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2888	2312	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 2 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	build2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe
712	build2.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
712	build2.exe
712	build2.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 712 wrote to memory of 2312	712	build2.exe	87
PID 712 wrote to memory of 2312	712	build2.exe	87
PID 712 wrote to memory of 2312	712	build2.exe	87

C:\Users\Admin\AppData\Local\Temp\build2.exe
"C:\Users\Admin\AppData\Local\Temp\build2.exe"
1⤵
- Maps connected drives based on registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:712
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2312
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2312 -s 1120
    3⤵
    - Program crash
    PID:2888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 2312 -ip 2312
1⤵
PID:4424

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

Replay Monitor

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Downloads

memory/712-0-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/712-1-0x0000000000110000-0x000000000011A000-memory.dmp

Filesize
40KB

Download
memory/712-2-0x0000000000110000-0x000000000011A000-memory.dmp

Filesize
40KB

Download
memory/712-4-0x0000000000110000-0x000000000011A000-memory.dmp

Filesize
40KB

Download
memory/712-15-0x0000000000110000-0x000000000011A000-memory.dmp

Filesize
40KB

Download
memory/712-17-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/2312-5-0x0000000000820000-0x0000000000C53000-memory.dmp

Filesize
4.2MB

Download
memory/2312-7-0x0000000000820000-0x0000000000C53000-memory.dmp

Filesize
4.2MB

Download
memory/2312-8-0x00000000010F0000-0x00000000010FA000-memory.dmp

Filesize
40KB

Download
memory/2312-12-0x00000000010F0000-0x00000000010FA000-memory.dmp

Filesize
40KB

Download