smokeloader | 6608c17499d7212c1c8f4450a2c6fec8627f8a0f1f7015dab5920b271696c84b

Analysis

max time kernel
111s
max time network
16s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
24/08/2024, 22:06

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General

Target

2a85c580c3b709fea4c0f7c469703070N.exe
Size

208KB
MD5

2a85c580c3b709fea4c0f7c469703070
SHA1

5028450b3a79bd3d8523e976c3ef72c5d63d8323
SHA256

6608c17499d7212c1c8f4450a2c6fec8627f8a0f1f7015dab5920b271696c84b
SHA512

dbdb4bc070d7d92ba03990699fd5984d47e92987f1f37655301475dc3a1d8ddf7af8e99901d537fa569562f727b888e75bbcb12d405d5b4259e540c62b276ef0
SSDEEP

3072:O/xUH0ywakB4VvLqOoOflq15iJiShvOX20c19P4JzVbdA45j86AT9R0uSk:O/xUgakB4VvLqzukgwc114ZVX8530j

Score

10^/10

smokeloader pub4 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub4

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
2540	2a85c580c3b709fea4c0f7c469703070N.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2792	2540	WerFault.exe	29

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	2a85c580c3b709fea4c0f7c469703070N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 2792	2540	2a85c580c3b709fea4c0f7c469703070N.exe	30
PID 2540 wrote to memory of 2792	2540	2a85c580c3b709fea4c0f7c469703070N.exe	30
PID 2540 wrote to memory of 2792	2540	2a85c580c3b709fea4c0f7c469703070N.exe	30
PID 2540 wrote to memory of 2792	2540	2a85c580c3b709fea4c0f7c469703070N.exe	30

C:\Users\Admin\AppData\Local\Temp\2a85c580c3b709fea4c0f7c469703070N.exe
"C:\Users\Admin\AppData\Local\Temp\2a85c580c3b709fea4c0f7c469703070N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2540
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2540 -s 128
  2⤵
  - Program crash
  PID:2792

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

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\CC4F.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
memory/2540-2-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2540-4-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2540-3-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2540-7-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2540-8-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2540-9-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download