Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    04-12-2021 19:53

General

  • Target

    4df693f47c93324efa41fccef3b1331c.exe

  • Size

    235KB

  • MD5

    4df693f47c93324efa41fccef3b1331c

  • SHA1

    cfccb8f1be7288f9b43150b567ddf4843b4af13b

  • SHA256

    2805be73a04fe26bd831204a0e30a9d629ad5567b9b275291354bf3c7e89b010

  • SHA512

    1c60ca0ae32737ebe735ac87dbe895b00d88df3797582b03104d704c8233b77ccf858b3241770d0f5e9c969e80286f3b8884436ae747c14bb063aad013504f8f

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://rcacademy.at/upload/

http://e-lanpengeonline.com/upload/

http://vjcmvz.cn/upload/

http://galala.ru/upload/

http://witra.ru/upload/

https://cinems.club/search.php

https://clothes.surf/search.php

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

redline

C2

195.133.47.114:38620

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 2 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Executes dropped EXE 6 IoCs
  • Deletes itself 1 IoCs
  • Drops startup file 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks SCSI registry key(s) 3 TTPs 9 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4df693f47c93324efa41fccef3b1331c.exe
    "C:\Users\Admin\AppData\Local\Temp\4df693f47c93324efa41fccef3b1331c.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1644
  • C:\Users\Admin\AppData\Local\Temp\B8B5.exe
    C:\Users\Admin\AppData\Local\Temp\B8B5.exe
    1⤵
    • Executes dropped EXE
    • Drops startup file
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:956
    • C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe
      "C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: AddClipboardFormatListener
      PID:1564
  • C:\Users\Admin\AppData\Local\Temp\CF26.exe
    C:\Users\Admin\AppData\Local\Temp\CF26.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:1560
  • C:\Users\Admin\AppData\Local\Temp\E4AA.exe
    C:\Users\Admin\AppData\Local\Temp\E4AA.exe
    1⤵
    • Executes dropped EXE
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:968
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\TxXuxXVjb & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\E4AA.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1200
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4
        3⤵
        • Delays execution with timeout.exe
        PID:1944
  • C:\Users\Admin\AppData\Local\Temp\F741.exe
    C:\Users\Admin\AppData\Local\Temp\F741.exe
    1⤵
    • Executes dropped EXE
    PID:1444
  • C:\Users\Admin\AppData\Local\Temp\A26.exe
    C:\Users\Admin\AppData\Local\Temp\A26.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:1108

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\A26.exe

    MD5

    16d22182243b7bfb6aed30564f165cc8

    SHA1

    3e8fc329c2630d766ecef3f13ed262abc472c398

    SHA256

    242b150767fa1ffb485724c00ffbda83da6bc23fde3fa70c1707012bacabcad0

    SHA512

    b382020f49e7281f6b46ade125380bfdd51c105a2f3e89cfc6d35f2cebad9e43371a60146db9ba2cdb13d5e03b906d0eac1716c5541e548d2febc0bfd485ebe6

  • C:\Users\Admin\AppData\Local\Temp\B8B5.exe

    MD5

    2635c82bba4900d6d0be58cd86bc0f70

    SHA1

    dda99874642c0f98f4d78c316866df3f6dd168c8

    SHA256

    641779b05eb13a933cfb9dc902d3749b8786d32967b70af5b6c538af86bb648e

    SHA512

    57d8fa2d74e86c0e125dbdf3b3bfa504a01f460ef60ad586f2d9c51c9c5fb77cda764f847d087fcfb73f60a895105f71d474507d39f1ece310fa035a02dd1028

  • C:\Users\Admin\AppData\Local\Temp\B8B5.exe

    MD5

    2635c82bba4900d6d0be58cd86bc0f70

    SHA1

    dda99874642c0f98f4d78c316866df3f6dd168c8

    SHA256

    641779b05eb13a933cfb9dc902d3749b8786d32967b70af5b6c538af86bb648e

    SHA512

    57d8fa2d74e86c0e125dbdf3b3bfa504a01f460ef60ad586f2d9c51c9c5fb77cda764f847d087fcfb73f60a895105f71d474507d39f1ece310fa035a02dd1028

  • C:\Users\Admin\AppData\Local\Temp\CF26.exe

    MD5

    2453e3cc777b0f656aa7bb22de048bdd

    SHA1

    a5c0e45bc6848e9c4964188c481a89c594888050

    SHA256

    60f461ff378333dbb6aef95ff06819b8749944145a39251e346cc8256d1298dc

    SHA512

    0b0282100497e213d55c86d50f57cd76e3f21e5f03f6e72755093a53b676a153c21c718c196e263008c2ea5585f8abb511d0d51e1411d656b32c78382a3a2581

  • C:\Users\Admin\AppData\Local\Temp\E4AA.exe

    MD5

    c9037b99b13417a8a34411b7608e4aaf

    SHA1

    0890369ddf491d973f87abdd46c2f1e141d114f8

    SHA256

    4c1b46aa78b90a5bd0f8037f605781501e70679c931f4fee380f902c1871a7a7

    SHA512

    c34b5f51525b0ae7d32263de003a062a4584bcc14ae612fc16989ea685643306494490e2418a6817b0eb51f14346562fe993a31ec9bf646234357c8b790ef842

  • C:\Users\Admin\AppData\Local\Temp\E4AA.exe

    MD5

    c9037b99b13417a8a34411b7608e4aaf

    SHA1

    0890369ddf491d973f87abdd46c2f1e141d114f8

    SHA256

    4c1b46aa78b90a5bd0f8037f605781501e70679c931f4fee380f902c1871a7a7

    SHA512

    c34b5f51525b0ae7d32263de003a062a4584bcc14ae612fc16989ea685643306494490e2418a6817b0eb51f14346562fe993a31ec9bf646234357c8b790ef842

  • C:\Users\Admin\AppData\Local\Temp\F741.exe

    MD5

    6414f73b9269a3b807c9ffa1e1676b3f

    SHA1

    e12253387ef96d3074446fa0d418f6ab275959db

    SHA256

    a14bfe10ddfd585755193ad5eba5c9fdcbd100daa53cdf16f6d4e83765aeec08

    SHA512

    05ad43cb9481a7e4a0376933a7f13cab933940687e2321d51d6a0b18d6f1367bf78ef93927e52e271a32dbec85f311d986b002d937c0fdb68dec2c73ea8c031d

  • C:\Users\Admin\AppData\Local\Temp\F741.exe

    MD5

    6414f73b9269a3b807c9ffa1e1676b3f

    SHA1

    e12253387ef96d3074446fa0d418f6ab275959db

    SHA256

    a14bfe10ddfd585755193ad5eba5c9fdcbd100daa53cdf16f6d4e83765aeec08

    SHA512

    05ad43cb9481a7e4a0376933a7f13cab933940687e2321d51d6a0b18d6f1367bf78ef93927e52e271a32dbec85f311d986b002d937c0fdb68dec2c73ea8c031d

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SmartClock.lnk

    MD5

    1b6649e2d4c83c1e6aa5f196e81ad3f8

    SHA1

    20ee7c48453385d004d6970bf1ebd42051586cf7

    SHA256

    529cb1aa074cdcbd8ba6c82363db3c7d5916ee3ee0f420eea809073d50436563

    SHA512

    529724680dd6873fa583c42032f7bace37618aa4eaeddd0e74111f064f163062ec412008d2ca5b073cda0930e942fe2c8322c8820692797abcbc6ba98d0ed2f5

  • C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe

    MD5

    2635c82bba4900d6d0be58cd86bc0f70

    SHA1

    dda99874642c0f98f4d78c316866df3f6dd168c8

    SHA256

    641779b05eb13a933cfb9dc902d3749b8786d32967b70af5b6c538af86bb648e

    SHA512

    57d8fa2d74e86c0e125dbdf3b3bfa504a01f460ef60ad586f2d9c51c9c5fb77cda764f847d087fcfb73f60a895105f71d474507d39f1ece310fa035a02dd1028

  • \Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe

    MD5

    2635c82bba4900d6d0be58cd86bc0f70

    SHA1

    dda99874642c0f98f4d78c316866df3f6dd168c8

    SHA256

    641779b05eb13a933cfb9dc902d3749b8786d32967b70af5b6c538af86bb648e

    SHA512

    57d8fa2d74e86c0e125dbdf3b3bfa504a01f460ef60ad586f2d9c51c9c5fb77cda764f847d087fcfb73f60a895105f71d474507d39f1ece310fa035a02dd1028

  • \Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe

    MD5

    2635c82bba4900d6d0be58cd86bc0f70

    SHA1

    dda99874642c0f98f4d78c316866df3f6dd168c8

    SHA256

    641779b05eb13a933cfb9dc902d3749b8786d32967b70af5b6c538af86bb648e

    SHA512

    57d8fa2d74e86c0e125dbdf3b3bfa504a01f460ef60ad586f2d9c51c9c5fb77cda764f847d087fcfb73f60a895105f71d474507d39f1ece310fa035a02dd1028

  • \Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe

    MD5

    2635c82bba4900d6d0be58cd86bc0f70

    SHA1

    dda99874642c0f98f4d78c316866df3f6dd168c8

    SHA256

    641779b05eb13a933cfb9dc902d3749b8786d32967b70af5b6c538af86bb648e

    SHA512

    57d8fa2d74e86c0e125dbdf3b3bfa504a01f460ef60ad586f2d9c51c9c5fb77cda764f847d087fcfb73f60a895105f71d474507d39f1ece310fa035a02dd1028

  • memory/956-62-0x0000000000540000-0x00000000005C0000-memory.dmp

    Filesize

    512KB

  • memory/956-67-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/956-66-0x0000000001CF0000-0x0000000001D81000-memory.dmp

    Filesize

    580KB

  • memory/956-60-0x0000000000000000-mapping.dmp

  • memory/968-82-0x0000000000000000-mapping.dmp

  • memory/968-88-0x0000000000400000-0x0000000000468000-memory.dmp

    Filesize

    416KB

  • memory/968-87-0x0000000000220000-0x0000000000267000-memory.dmp

    Filesize

    284KB

  • memory/968-85-0x000000000061B000-0x0000000000641000-memory.dmp

    Filesize

    152KB

  • memory/1108-98-0x0000000000000000-mapping.dmp

  • memory/1108-102-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB

  • memory/1108-103-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/1108-100-0x000000000062B000-0x0000000000634000-memory.dmp

    Filesize

    36KB

  • memory/1200-89-0x0000000000000000-mapping.dmp

  • memory/1268-84-0x0000000003C30000-0x0000000003C46000-memory.dmp

    Filesize

    88KB

  • memory/1268-104-0x00000000060A0000-0x00000000060B6000-memory.dmp

    Filesize

    88KB

  • memory/1268-59-0x0000000002AC0000-0x0000000002AD6000-memory.dmp

    Filesize

    88KB

  • memory/1444-91-0x0000000000000000-mapping.dmp

  • memory/1444-97-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

    Filesize

    4KB

  • memory/1444-94-0x0000000000D30000-0x0000000000D31000-memory.dmp

    Filesize

    4KB

  • memory/1560-76-0x0000000000000000-mapping.dmp

  • memory/1560-81-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/1560-80-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB

  • memory/1560-78-0x000000000061B000-0x0000000000624000-memory.dmp

    Filesize

    36KB

  • memory/1564-73-0x0000000000350000-0x00000000003D0000-memory.dmp

    Filesize

    512KB

  • memory/1564-75-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/1564-70-0x0000000000000000-mapping.dmp

  • memory/1644-55-0x0000000076531000-0x0000000076533000-memory.dmp

    Filesize

    8KB

  • memory/1644-58-0x0000000000400000-0x0000000002B74000-memory.dmp

    Filesize

    39.5MB

  • memory/1644-56-0x00000000001B0000-0x00000000001B9000-memory.dmp

    Filesize

    36KB

  • memory/1644-57-0x0000000000240000-0x0000000000249000-memory.dmp

    Filesize

    36KB

  • memory/1944-90-0x0000000000000000-mapping.dmp