Overview

overview

10

Static

static

8

update_0229c0.exe

windows7_x64

update_0229c0.exe

windows10_x64

Resubmissions

17-01-2021 17:36

210117-g43rpv65tx 10

16-01-2021 21:48

210116-w1b6l8qxm6 10

Analysis

  • max time kernel
    127s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    17-01-2021 17:36

Sharing

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Errors

Reason
Machine shutdown
Report Analysis Logs

General

  • Target

    update_0229c0.exe

  • Size

    221KB

  • MD5

    7cffc862f118a28123abc568072e3b10

  • SHA1

    fe24ef3926b8b457c4206a1d0f99f94461fe2db5

  • SHA256

    63e5c2fd84ec09e577c07096928b9c3e53c6341dd75f3b29a536b7ead90d872d

  • SHA512

    1b16e827cfbdaa7947ecbe8197f5d094f34dc75e95895a2afe8d3d2b617eab02928bccc36c6f9329078e39e3e83d8d7a6ffdc16808022c7d979467811d2723b4

Score
10/10
smokeloaderbackdoorbootkitpersistencetrojanupx

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://oversun.monster/upload/

http://oversun.net/upload/

http://dingobossin.com/upload/

http://duda1.monster/upload/

http�//vinder55.monster/upload/

http://jamb2.monster/upload/
rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Executes dropped EXE 1 IoCs
  • UPX packed file 1 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 662 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 41 IoCs
  • Suspicious use of SendNotifyMessage 41 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\update_0229c0.exe
    "C:\Users\Admin\AppData\Local\Temp\update_0229c0.exe"
    1⤵
    • Loads dropped DLL
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:644
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:608
  • C:\Users\Admin\AppData\Local\Temp\F26A.exe
    C:\Users\Admin\AppData\Local\Temp\F26A.exe
    1⤵
    • Executes dropped EXE
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of AdjustPrivilegeToken
    PID:824

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

1
T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\F26A.exe
    MD5

    fe169b48dcb65d058e1a3ed206e5e14e

    SHA1

    7bdce2682c8b807c6e3048d4415b545fdc6a6d0a

    SHA256

    51925ed97ed194884c4f8972113fca707126886366b367aa00f99a95fac6045d

    SHA512

    930d11ba0fa8b860fbfbd907ab8b4bded2d0c328a754f3ad0be07db7cc6ecb2e3b5386e038d1b38eda2ec0f555007f8b4ffcc5b4901cde423bd124d9fa3b7548

    Download Submit
  • \Users\Admin\AppData\Local\Temp\CC4F.tmp
    MD5

    d124f55b9393c976963407dff51ffa79

    SHA1

    2c7bbedd79791bfb866898c85b504186db610b5d

    SHA256

    ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

    SHA512

    278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

    Download Submit
  • memory/608-9-0x000007FEFBCD1000-0x000007FEFBCD3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/608-8-0x0000000000000000-mapping.dmp
    Download
  • memory/644-5-0x0000000000240000-0x000000000024A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/644-6-0x0000000000400000-0x000000000040A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/644-2-0x00000000765E1000-0x00000000765E3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/644-3-0x0000000006A30000-0x0000000006A41000-memory.dmp
    Filesize

    68KB

    Download
  • memory/824-10-0x0000000000000000-mapping.dmp
    Download
  • memory/824-12-0x0000000004880000-0x0000000004891000-memory.dmp
    Filesize

    68KB

    Download
  • memory/824-15-0x0000000000400000-0x000000000046F000-memory.dmp
    Filesize

    444KB

    Download
  • memory/824-14-0x0000000000220000-0x000000000028B000-memory.dmp
    Filesize

    428KB

    Download
  • memory/1264-7-0x0000000002A30000-0x0000000002A46000-memory.dmp
    Filesize

    88KB

    Download