smokeloader | c81e9648f5cb972ee686bd3b7699405dce0657fcefedc55603d8bfcd5261476b

General

Target

ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Size

196KB
MD5

ec6e4b29c17f3a67c6a750ea32ed05cf
SHA1

7785993c160afd33a0cdd55fc8321ccbd14ae796
SHA256

c81e9648f5cb972ee686bd3b7699405dce0657fcefedc55603d8bfcd5261476b
SHA512

be99f1976ec4afac8b74e7053fb15da94d57f032e1de52a6a403b3f356d6cfc21480679e1ac02de79e57fb5667facade803723a0092f8e09b48a8f54f44cbe3c
SSDEEP

3072:2KBxpWutCmcEdschYDZHoM8bmsisitP7:2KFlJAHYbvg7

Score

10^/10

smokeloader vgu backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

VgU

Extracted

Family

smokeloader

Version

2018

C2

http://biharmart.com/ip/

rc4.i32

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	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1744 set thread context of 2284	1744	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe	28

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	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe

Modifies registry class 18 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DWmlsc.Document\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\EC6E4B~1.EXE,0"	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.wmlsc\ShellNew	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DWmlsc.Document\ = "DWmlsc Document"	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DWmlsc.Document\shell	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DWmlsc.Document\shell\open\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\EC6E4B~1.EXE \"%1\""	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DWmlsc.Document\shell\print	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DWmlsc.Document\shell\print\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\EC6E4B~1.EXE /p \"%1\""	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DWmlsc.Document\shell\printto\command	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DWmlsc.Document\shell\print\command	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DWmlsc.Document\shell\printto	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DWmlsc.Document\shell\printto\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\EC6E4B~1.EXE /pt \"%1\" \"%2\" \"%3\" \"%4\""	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DWmlsc.Document	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DWmlsc.Document\DefaultIcon	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DWmlsc.Document\shell\open\command	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DWmlsc.Document\shell\open	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.wmlsc	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.wmlsc\ = "DWmlsc.Document"	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.wmlsc\ShellNew\NullFile	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2284	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
2284	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1744	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 2284	1744	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe	28
PID 1744 wrote to memory of 2284	1744	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe	28
PID 1744 wrote to memory of 2284	1744	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe	28
PID 1744 wrote to memory of 2284	1744	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe	28
PID 1744 wrote to memory of 2284	1744	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe	28
PID 1744 wrote to memory of 2284	1744	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe	28
PID 1744 wrote to memory of 2284	1744	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe	28
PID 1744 wrote to memory of 2284	1744	ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe	28

C:\Users\Admin\AppData\Local\Temp\ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Users\Admin\AppData\Local\Temp\ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\ec6e4b29c17f3a67c6a750ea32ed05cf_JaffaCakes118.exe"
  2⤵
  - Maps connected drives based on registry
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  PID:2284

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1200-2-0x00000000024B0000-0x00000000024B1000-memory.dmp

Filesize
4KB

Download
memory/1200-3-0x0000000002490000-0x00000000024A5000-memory.dmp

Filesize
84KB

Download
memory/1200-4-0x00000000024B0000-0x00000000024B1000-memory.dmp

Filesize
4KB

Download
memory/1200-7-0x0000000002490000-0x00000000024A5000-memory.dmp

Filesize
84KB

Download
memory/1744-0-0x000000000040A000-0x0000000000413000-memory.dmp

Filesize
36KB

Download
memory/2284-1-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2284-5-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads