smokeloader | f913881084275fdf37d38f6f06f1f9a5261bac9445fd372bed0c3fdefd346321

Analysis

max time kernel
142s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-08-2024 05:09

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General

Target

f913881084275fdf37d38f6f06f1f9a5261bac9445fd372bed0c3fdefd346321.exe
Size

202KB
MD5

1bd596b82beeb72ce67b7c528644f1c5
SHA1

aa30ecd4ae8f4905247c7c2adcf0000154408cd6
SHA256

f913881084275fdf37d38f6f06f1f9a5261bac9445fd372bed0c3fdefd346321
SHA512

fd867293f700bfd50547be13389b69ac1c1464bd88e564f2180206c00c6a0280a3737d01d9158ef03174edaab9ea20b408deb2aad611ce96655c1517340e83c2
SSDEEP

3072:riOG+sRZLZwGINvRwYMczT+gE3sY5PDFvp7d57d7zS10mdGh4:ruRZL7yvRwoTjE3DZH57dfNmdR

Score

10^/10

smokeloader pub4 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub4

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
1608	f913881084275fdf37d38f6f06f1f9a5261bac9445fd372bed0c3fdefd346321.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3252	1608	WerFault.exe	90

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	f913881084275fdf37d38f6f06f1f9a5261bac9445fd372bed0c3fdefd346321.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	f913881084275fdf37d38f6f06f1f9a5261bac9445fd372bed0c3fdefd346321.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f913881084275fdf37d38f6f06f1f9a5261bac9445fd372bed0c3fdefd346321.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f913881084275fdf37d38f6f06f1f9a5261bac9445fd372bed0c3fdefd346321.exe

C:\Users\Admin\AppData\Local\Temp\f913881084275fdf37d38f6f06f1f9a5261bac9445fd372bed0c3fdefd346321.exe
"C:\Users\Admin\AppData\Local\Temp\f913881084275fdf37d38f6f06f1f9a5261bac9445fd372bed0c3fdefd346321.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks SCSI registry key(s)
PID:1608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1608 -s 376
  2⤵
  - Program crash
  PID:3252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1608 -ip 1608
1⤵
PID:5088

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4372,i,3861745594156495651,17595114179815238301,262144 --variations-seed-version --mojo-platform-channel-handle=1016 /prefetch:8
1⤵
PID:4856

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\CC4F.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
memory/1608-1-0x0000000002C70000-0x0000000002D70000-memory.dmp

Filesize
1024KB

Download
memory/1608-2-0x00000000048F0000-0x00000000048F9000-memory.dmp

Filesize
36KB

Download
memory/1608-3-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1608-9-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1608-8-0x0000000000400000-0x0000000002BA3000-memory.dmp

Filesize
39.6MB

Download