smokeloader | a155c38fa6f003c89d32079c04334a257ea4ad9833664626e5c2bbd4ddbb3e24

Analysis

max time kernel
105s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
26/03/2025, 22:41

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General

Target

243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe
Size

460KB
MD5

33eb55a002f0da6c775958fbefd39a3a
SHA1

6e2042d7e7bb4eabee4cd68820d74a96ae84437c
SHA256

243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b
SHA512

f9fded9865fa1d4ebd987c3c4e8334c4b61d793d3ab1a3fb009ba24bd8e5c47e119a1e86cd7e7e511e973c7dba6a855a2a4a41efe257308b02f235e100fdae33
SSDEEP

12288:Ya+XwNiB5rd6i9CkJPEcXgqAY2+o8z/78:SgNiDrIiRJ/PrRzw

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
5336	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 6068 set thread context of 5336	6068	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe	105

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	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 6068 wrote to memory of 5336	6068	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe	105
PID 6068 wrote to memory of 5336	6068	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe	105
PID 6068 wrote to memory of 5336	6068	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe	105
PID 6068 wrote to memory of 5336	6068	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe	105
PID 6068 wrote to memory of 5336	6068	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe	105
PID 6068 wrote to memory of 5336	6068	243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe	105

C:\Users\Admin\AppData\Local\Temp\243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe
"C:\Users\Admin\AppData\Local\Temp\243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6068
- C:\Users\Admin\AppData\Local\Temp\243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe
  "C:\Users\Admin\AppData\Local\Temp\243915f58ee0b47ad8f4972192a2634781e7beb3cec92999f2d48fba3ee08b2b.exe"
  2⤵
  - Loads dropped DLL
  - Checks SCSI registry key(s)
  PID:5336

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\65B3.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
memory/5336-12-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/5336-18-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/5336-14-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/6068-4-0x0000000004C50000-0x0000000004CEC000-memory.dmp

Filesize
624KB

Download
memory/6068-5-0x0000000004CF0000-0x0000000004CFA000-memory.dmp

Filesize
40KB

Download
memory/6068-6-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/6068-7-0x0000000004B60000-0x0000000004B70000-memory.dmp

Filesize
64KB

Download
memory/6068-8-0x0000000074D4E000-0x0000000074D4F000-memory.dmp

Filesize
4KB

Download
memory/6068-9-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/6068-10-0x00000000058A0000-0x00000000058E8000-memory.dmp

Filesize
288KB

Download
memory/6068-11-0x0000000005900000-0x0000000005910000-memory.dmp

Filesize
64KB

Download
memory/6068-0-0x0000000074D4E000-0x0000000074D4F000-memory.dmp

Filesize
4KB

Download
memory/6068-3-0x0000000004BB0000-0x0000000004C42000-memory.dmp

Filesize
584KB

Download
memory/6068-2-0x00000000050C0000-0x0000000005664000-memory.dmp

Filesize
5.6MB

Download
memory/6068-1-0x0000000000270000-0x00000000002EA000-memory.dmp

Filesize
488KB

Download
memory/6068-19-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download