smokeloader | 8e020777c713413f11c59c779bf6a2efb777f2d4c309e5dbc1e8a0b5bd27472e

Analysis

max time kernel
33s
max time network
34s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
10-05-2024 17:31

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General

Target

2019-09-02_22-41-10.exe
Size

251KB
MD5

924aa6c26f6f43e0893a40728eac3b32
SHA1

baa9b4c895b09d315ed747b3bd087f4583aa84fc
SHA256

30f9db1f5838abb6c1580fdfb7f5dcfd7c2ac8cfac50c2edd0c8415d66212c95
SHA512

3cb6fd659aff46eaa62b0e647ccebeecb070ba0bb27e1cc037b33caf23c417e75f476e1c08e1b5f3b232c4640995ae5afa43bfd09252d318fe5eec0d18de830a
SSDEEP

6144:2E5sHpScP2xeQhp4wGoqPKNDF50AsurB:PsHIiQv4gBNDFiTuF

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Loads dropped DLL 1 IoCs

Processes:

2019-09-02_22-41-10.exe

pid process

3108 2019-09-02_22-41-10.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

2019-09-02_22-41-10.exe

description pid process target process

PID 3500 set thread context of 3108 3500 2019-09-02_22-41-10.exe 2019-09-02_22-41-10.exe

pid	process
3108	2019-09-02_22-41-10.exe

description	pid	process	target process
PID 3500 set thread context of 3108	3500	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

2019-09-02_22-41-10.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2019-09-02_22-41-10.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2019-09-02_22-41-10.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2019-09-02_22-41-10.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

2019-09-02_22-41-10.exe

description	pid	process	target process
PID 3500 wrote to memory of 3108	3500	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 3500 wrote to memory of 3108	3500	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 3500 wrote to memory of 3108	3500	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 3500 wrote to memory of 3108	3500	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 3500 wrote to memory of 3108	3500	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 3500 wrote to memory of 3108	3500	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe

C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe
"C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3500
- C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe
  "C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe"
  2⤵
  - Loads dropped DLL
  - Checks SCSI registry key(s)
  PID:3108

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\D47F.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
memory/3108-3-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3108-4-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3108-10-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3500-2-0x0000000000A10000-0x0000000000A1B000-memory.dmp

Filesize
44KB

Download
memory/3500-1-0x0000000000C70000-0x0000000000D70000-memory.dmp

Filesize
1024KB

Download