smokeloader | 38bc13ef112b2f17d4d1a80243fac6a521b5d58228984aae0752d79487fa3b66

Analysis

max time kernel
140s
max time network
107s
platform
windows11-21h2_x64
resource
win11-20250610-en
resource tags

arch:x64arch:x86image:win11-20250610-enlocale:en-usos:windows11-21h2-x64system
submitted
17/06/2025, 23:14

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General

Target
2019-09-02_22-41-10.exe
Size 251KB
Sample250617-28f92aspx3
SHA256 30f9db1f5838abb6c1580fdfb7f5dcfd7c2ac8cfac50c2edd0c8415d66212c95
MD5 924aa6c26f6f43e0893a40728eac3b32
SHA1 baa9b4c895b09d315ed747b3bd087f4583aa84fc
SHA512 3cb6fd659aff46eaa62b0e647ccebeecb070ba0bb27e1cc037b33caf23c417e75f476e1c08e1b5f3b232c4640995ae5afa43bfd09252d318fe5eec0d18de830a
SSDEEP 6144:2E5sHpScP2xeQhp4wGoqPKNDF50AsurB:PsHIiQv4gBNDFiTuF
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Version

2019

http://advertserv25.world/logstatx77/
http://mailstatm74.club/logstatx77/
http://kxservx7zx.club/logstatx77/
http://dsmail977sx.xyz/logstatx77/
http://fdmail709.club/logstatx77/
http://servicestar751.club/logstatx77/
http://staradvert9075.club/logstatx77/
http://staradvert1883.club/logstatx77/

rc4.i32

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
5192	2019-09-02_22-41-10.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2388 set thread context of 5192	2388	2019-09-02_22-41-10.exe	78

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	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

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

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
5192	2019-09-02_22-41-10.exe
5192	2019-09-02_22-41-10.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 5192	2388	2019-09-02_22-41-10.exe	78
PID 2388 wrote to memory of 5192	2388	2019-09-02_22-41-10.exe	78
PID 2388 wrote to memory of 5192	2388	2019-09-02_22-41-10.exe	78
PID 2388 wrote to memory of 5192	2388	2019-09-02_22-41-10.exe	78
PID 2388 wrote to memory of 5192	2388	2019-09-02_22-41-10.exe	78
PID 2388 wrote to memory of 5192	2388	2019-09-02_22-41-10.exe	78

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
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2388
- 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)
  - Suspicious behavior: MapViewOfSection
  PID:5192

Network

MITRE ATT&CK Enterprise v16

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

D47F.tmp

Path C:\Users\Admin\AppData\Local\Temp\D47F.tmp
Size 1.6MB
SHA256 35f8d721f246ae3e19d204f9bcab3237448ed906a25bba14e7016e5cdd2fc2ce
MD5 1cf5669feb127f89f57e8e9d9ac11409
SHA1 d8aaccbbef08cde0161bfbc0f6b7b1e8a1c43d42
SHA512 7ebf6cc1a5a0d1ad89666af09bbdd947c02fcb933aeb72c8aff1a378582e38e5c816f806afe87038f10215c3c6c11e50f3226146ba3358e4d6005553cf373b08
SSDEEP 24576:aVt7gjySvKflMZ3wZq6ElHMvJKIZY7VaZA/rOvSBDSnH+XQk7WqITgR:24yZeBwI/OvJKIZaFCvYYq6qIMR
MD5 SHA1 SHA512 SSDEEP

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memory/2388-1-0x0000000000CD0000-0x0000000000DD0000-memory.dmp

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memory/2388-2-0x0000000000AC0000-0x0000000000ACB000-memory.dmp

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memory/3236-8-0x00000000027B0000-0x00000000027B1000-memory.dmp

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memory/3236-9-0x0000000002790000-0x00000000027A6000-memory.dmp

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memory/3236-12-0x00000000027B0000-0x00000000027B1000-memory.dmp

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memory/3236-13-0x0000000002790000-0x00000000027A6000-memory.dmp

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memory/5192-3-0x0000000000400000-0x000000000040A000-memory.dmp

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memory/5192-4-0x0000000000400000-0x000000000040A000-memory.dmp

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memory/5192-10-0x0000000000400000-0x000000000040A000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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