smokeloader | 60b290310f67adb0ae186b4b938ca466a6b55653b2519261fa425127f5500a1f

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
03-09-2024 14:02

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General

Target

Trojan/SmokeLoader.exe
Size

251KB
MD5

924aa6c26f6f43e0893a40728eac3b32
SHA1

baa9b4c895b09d315ed747b3bd087f4583aa84fc
SHA256

30f9db1f5838abb6c1580fdfb7f5dcfd7c2ac8cfac50c2edd0c8415d66212c95
SHA512

3cb6fd659aff46eaa62b0e647ccebeecb070ba0bb27e1cc037b33caf23c417e75f476e1c08e1b5f3b232c4640995ae5afa43bfd09252d318fe5eec0d18de830a
SSDEEP

6144:2E5sHpScP2xeQhp4wGoqPKNDF50AsurB:PsHIiQv4gBNDFiTuF

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
2636	SmokeLoader.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2972 set thread context of 2636	2972	SmokeLoader.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	SmokeLoader.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 2636	2972	SmokeLoader.exe	31
PID 2972 wrote to memory of 2636	2972	SmokeLoader.exe	31
PID 2972 wrote to memory of 2636	2972	SmokeLoader.exe	31
PID 2972 wrote to memory of 2636	2972	SmokeLoader.exe	31
PID 2972 wrote to memory of 2636	2972	SmokeLoader.exe	31
PID 2972 wrote to memory of 2636	2972	SmokeLoader.exe	31
PID 2972 wrote to memory of 2636	2972	SmokeLoader.exe	31

C:\Users\Admin\AppData\Local\Temp\Trojan\SmokeLoader.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan\SmokeLoader.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Users\Admin\AppData\Local\Temp\Trojan\SmokeLoader.exe
  "C:\Users\Admin\AppData\Local\Temp\Trojan\SmokeLoader.exe"
  2⤵
  - Loads dropped DLL
  PID:2636

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\D47F.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
memory/2636-5-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2636-6-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2636-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2636-12-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2972-2-0x0000000000020000-0x000000000002B000-memory.dmp

Filesize
44KB

Download
memory/2972-1-0x0000000000A70000-0x0000000000B70000-memory.dmp

Filesize
1024KB

Download

Resubmissions

Analysis