smokeloader | efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/11/2024, 12:52

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General

Target

efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd.exe
Size

214KB
MD5

a99b3c64986952f3deb9e791d835e581
SHA1

8c5f56ce07cdd6e0c6a4e055c5843458bf4daae7
SHA256

efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd
SHA512

63f265b6db38ddc59cf47f1d04063ff6839b2dfdd793bae3fe0300d1c238663886d793af12577c4a1554f589a1d69da2e3b6298de46cd57749f9c27f96618c0a
SSDEEP

6144:05Cav7YAviw2dlUFs2WW7AOh7sDpmh2tJ1:0Uav7YAvnD7D7skeJ

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

description	pid	Process	procid_target
PID 1744 set thread context of 2692	1744	efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd.exe	31

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	efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 2692	1744	efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd.exe	31
PID 1744 wrote to memory of 2692	1744	efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd.exe	31
PID 1744 wrote to memory of 2692	1744	efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd.exe	31
PID 1744 wrote to memory of 2692	1744	efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd.exe	31
PID 1744 wrote to memory of 2692	1744	efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd.exe	31
PID 1744 wrote to memory of 2692	1744	efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd.exe	31
PID 1744 wrote to memory of 2692	1744	efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd.exe	31
PID 1744 wrote to memory of 2692	1744	efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd.exe	31
PID 1744 wrote to memory of 2692	1744	efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd.exe	31

C:\Users\Admin\AppData\Local\Temp\efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd.exe
"C:\Users\Admin\AppData\Local\Temp\efca9184fc85781b0998cfa41af4f5449f726d8f050c30cf241b6f75bd2291fd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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Downloads

memory/1744-0-0x0000000001343000-0x0000000001345000-memory.dmp

Filesize
8KB

Download
memory/2692-1-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2692-4-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2692-2-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download