smokeloader | 921f09ab9c94ca5a866d028b363b7b3c65eee7d97b04982aca23ff4eb770bda8

Analysis

max time kernel
101s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29-08-2024 12:16

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General

Target

7816af4bfde02b4c8b8e2d9f73b80840N.exe
Size

304KB
MD5

7816af4bfde02b4c8b8e2d9f73b80840
SHA1

3c4470c1ea8d35196f9a386ef6575b2cd45e5b5d
SHA256

921f09ab9c94ca5a866d028b363b7b3c65eee7d97b04982aca23ff4eb770bda8
SHA512

acf69743d1a22adc5aec5eabbda35c711f23085edd976c39f2f9673dba13bdf25a3b734960146a2b57b72b97e9708c76eaaf8bb00f30c05ea9b3a705ee295d58
SSDEEP

6144:KbmGsPYpE2Iz2ga60xe6wtMJxLJKwTrwZgfF66DR:bGOYpE2Iz2ga60lwtILYw3GoFR

Score

10^/10

smokeloader 0204 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

0204

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
2912	7816af4bfde02b4c8b8e2d9f73b80840N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4220 set thread context of 2912	4220	7816af4bfde02b4c8b8e2d9f73b80840N.exe	89

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	7816af4bfde02b4c8b8e2d9f73b80840N.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	7816af4bfde02b4c8b8e2d9f73b80840N.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	7816af4bfde02b4c8b8e2d9f73b80840N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	7816af4bfde02b4c8b8e2d9f73b80840N.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4220 wrote to memory of 2912	4220	7816af4bfde02b4c8b8e2d9f73b80840N.exe	89
PID 4220 wrote to memory of 2912	4220	7816af4bfde02b4c8b8e2d9f73b80840N.exe	89
PID 4220 wrote to memory of 2912	4220	7816af4bfde02b4c8b8e2d9f73b80840N.exe	89
PID 4220 wrote to memory of 2912	4220	7816af4bfde02b4c8b8e2d9f73b80840N.exe	89
PID 4220 wrote to memory of 2912	4220	7816af4bfde02b4c8b8e2d9f73b80840N.exe	89
PID 4220 wrote to memory of 2912	4220	7816af4bfde02b4c8b8e2d9f73b80840N.exe	89

C:\Users\Admin\AppData\Local\Temp\7816af4bfde02b4c8b8e2d9f73b80840N.exe
"C:\Users\Admin\AppData\Local\Temp\7816af4bfde02b4c8b8e2d9f73b80840N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4220
- C:\Users\Admin\AppData\Local\Temp\7816af4bfde02b4c8b8e2d9f73b80840N.exe
  "C:\Users\Admin\AppData\Local\Temp\7816af4bfde02b4c8b8e2d9f73b80840N.exe"
  2⤵
  - Loads dropped DLL
  - Checks SCSI registry key(s)
  PID:2912

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\AE30.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
memory/2912-3-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2912-4-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2912-8-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4220-1-0x0000000000950000-0x0000000000A50000-memory.dmp

Filesize
1024KB

Download
memory/4220-2-0x0000000000AB0000-0x0000000000ABC000-memory.dmp

Filesize
48KB

Download