smokeloader | d122647aae3de82051e45fca17237f135db57f0929a660cf5e21ebdb4c3e5b47

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-11-2024 14:20

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General

Target

2de5fe686b665d9aeb98b075fb139e33fffe278986a15622ea90bcad2f760ab1.exe
Size

247KB
MD5

a149f9c13f37f5c71124e0c26da9b52a
SHA1

2a4961083c2015d449a7fef2042f4cb54a8ebc3d
SHA256

2de5fe686b665d9aeb98b075fb139e33fffe278986a15622ea90bcad2f760ab1
SHA512

fb4f8f7d890b309af5a26fde727a5d777ed6b13e4e3749bfdb965218f3237226541ecb0ce7f8cf96ef36ecee008f8158e6623dbcd7b7704489bb4e9a3f6bcf72
SSDEEP

3072:cnoOkmEQ4Zpc4CRWEFaBP2CudkT2z2y8gzHdwim7E:coOipvcNloB+VdkT2arIN+E

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Smokeloader family
smokeloader
Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2140 set thread context of 2768	2140	2de5fe686b665d9aeb98b075fb139e33fffe278986a15622ea90bcad2f760ab1.exe	30

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	2de5fe686b665d9aeb98b075fb139e33fffe278986a15622ea90bcad2f760ab1.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 2768	2140	2de5fe686b665d9aeb98b075fb139e33fffe278986a15622ea90bcad2f760ab1.exe	30
PID 2140 wrote to memory of 2768	2140	2de5fe686b665d9aeb98b075fb139e33fffe278986a15622ea90bcad2f760ab1.exe	30
PID 2140 wrote to memory of 2768	2140	2de5fe686b665d9aeb98b075fb139e33fffe278986a15622ea90bcad2f760ab1.exe	30
PID 2140 wrote to memory of 2768	2140	2de5fe686b665d9aeb98b075fb139e33fffe278986a15622ea90bcad2f760ab1.exe	30
PID 2140 wrote to memory of 2768	2140	2de5fe686b665d9aeb98b075fb139e33fffe278986a15622ea90bcad2f760ab1.exe	30
PID 2140 wrote to memory of 2768	2140	2de5fe686b665d9aeb98b075fb139e33fffe278986a15622ea90bcad2f760ab1.exe	30
PID 2140 wrote to memory of 2768	2140	2de5fe686b665d9aeb98b075fb139e33fffe278986a15622ea90bcad2f760ab1.exe	30

C:\Users\Admin\AppData\Local\Temp\2de5fe686b665d9aeb98b075fb139e33fffe278986a15622ea90bcad2f760ab1.exe
"C:\Users\Admin\AppData\Local\Temp\2de5fe686b665d9aeb98b075fb139e33fffe278986a15622ea90bcad2f760ab1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  PID:2768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/2140-0-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/2140-1-0x0000000000A70000-0x0000000000AB4000-memory.dmp

Filesize
272KB

Download
memory/2140-2-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2140-11-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2768-3-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2768-5-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2768-7-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2768-8-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2768-9-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2768-10-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download