smokeloader | ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca

Analysis

max time kernel
94s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-11-2024 15:19

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General

Target

ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe
Size

211KB
MD5

62fee168bc22f7d0c3b73eb0ef1ac49d
SHA1

cbb732eb9c73c15386afe23317aa0176ab236aea
SHA256

ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca
SHA512

1c84fb7f5adb7f1ab1ae90a32f44977c84a4f6620bc77ff4580c419fdc80a3a5d551c65b93f09722ac1610fe8c367d92ef6d53429174c415e0b5d5a5d5c00cbb
SSDEEP

3072:VbWoSdUCtu9MUy4xk2Q5Jco4RxJEPSvnARgYzbHOAg0FujDs55OaXUZCzRbNP/Ct:VqogFu6U3xkxaRHEF+AOlaXUZgDXC

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe

description	pid	process	target process
PID 4544 set thread context of 4964	4544	ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe	RegSvcs.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2984 4544 WerFault.exe ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe

pid	pid_target	process	target process
2984	4544	WerFault.exe	ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe

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

Processes:

ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.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

Processes:

RegSvcs.exe

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

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe

description	pid	process	target process
PID 4544 wrote to memory of 4964	4544	ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe	RegSvcs.exe
PID 4544 wrote to memory of 4964	4544	ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe	RegSvcs.exe
PID 4544 wrote to memory of 4964	4544	ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe	RegSvcs.exe
PID 4544 wrote to memory of 4964	4544	ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe	RegSvcs.exe
PID 4544 wrote to memory of 4964	4544	ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe
"C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4544
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Checks SCSI registry key(s)
  PID:4964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 276
  2⤵
  - Program crash
  PID:2984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4544 -ip 4544
1⤵
PID:4800

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/4544-0-0x0000000000A01000-0x0000000000A03000-memory.dmp

Filesize
8KB

Download
memory/4964-1-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4964-4-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4964-5-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download