smokeloader | 81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-11-2024 18:40

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General

Target

81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe
Size

314KB
MD5

c8b46997277ecf7888f85b2cd10ee230
SHA1

ef347a5b5d2debdfe8ce4e4a754e738d6ba890f5
SHA256

81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914
SHA512

be4e3b060e97e0804f9611eff8b2ebb5ee86e98e0b93951697b24511e10ee23b68ab9c62e4f08d5abe758fea4e2b16bfb4b5ba57cee05c2270dfd9ac613a9d39
SSDEEP

3072:Hw0my/BSA9FfvSeXA4s8R4gIrRvlMdI6bBgpLFYksexFJOF250G+BEkjv17ome7k:bs8RVIrRGB+L6peJE2Me817c14beb

Score

10^/10

smokeloader pub2 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub2

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe

description	pid	process	target process
PID 1632 set thread context of 2540	1632	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.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:

81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe

description	pid	process	target process
PID 1632 wrote to memory of 2540	1632	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe
PID 1632 wrote to memory of 2540	1632	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe
PID 1632 wrote to memory of 2540	1632	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe
PID 1632 wrote to memory of 2540	1632	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe
PID 1632 wrote to memory of 2540	1632	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe
PID 1632 wrote to memory of 2540	1632	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe
PID 1632 wrote to memory of 2540	1632	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe	81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe

C:\Users\Admin\AppData\Local\Temp\81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe
"C:\Users\Admin\AppData\Local\Temp\81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Users\Admin\AppData\Local\Temp\81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe
  "C:\Users\Admin\AppData\Local\Temp\81a56fbbe8bb1aa826a3992a276da2ec4764c5ef20be61f82a64cbbdc3b1f914.exe"
  2⤵
  PID:2540

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/1632-2-0x0000000000020000-0x0000000000029000-memory.dmp

Filesize
36KB

Download
memory/1632-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2540-5-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2540-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2540-6-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2540-8-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download