Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-04-2024 07:12

General

  • Target

    d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab.exe

  • Size

    768KB

  • MD5

    caf850efed7232888c55264464c05f6e

  • SHA1

    d3ee060babd618726f3e1037832744caf5f698ac

  • SHA256

    d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab

  • SHA512

    1efaefee791c661c01d243c2204dc1014599351fa9c44501d92a1c5234acb4a0a387ac7856c82884f7279c4ccb6ec7c77a2078fee6a000bfb8422604cdefedc4

  • SSDEEP

    24576:iT9sB8HYVOPP/5Q9Jp1D00GAwNKeVUW2UjEfo:iT9M8HmmH5GpJxGAwgeuWbjEf

Malware Config

Extracted

Family

djvu

C2

http://acacaca.org/test1/get.php

Attributes
  • extension

    .vvew

  • offline_id

    rE5LpDv2ftYRXAo7bC18EpzfRMTHSGjgfyIMfZt1

  • payload_url

    http://rgyui.top/dl/build2.exe

    http://acacaca.org/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-QsoSRIeAK6 Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0530Jhyjd

rsa_pubkey.plain

Extracted

Family

mylobot

C2

pqrqtaz.ru:9879

pickcas.ru:6464

quwkbin.ru:3496

rkbupij.ru:6653

pcqmayq.ru:3629

mmuliwe.ru:3541

stoizji.ru:5189

sfdfrhh.ru:3511

ynciazz.ru:4127

mkglhnw.ru:1946

njeeili.ru:9987

dldzeoo.ru:7525

tkbiqjq.ru:5145

uenosbl.ru:2935

faayshc.ru:9865

nttfazc.ru:6761

nfwsyog.ru:7172

uyfusxm.ru:7372

hxkclwx.ru:1294

zgoysam.ru:2338

Signatures

  • Detected Djvu ransomware 20 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Mylobot

    Botnet which first appeared in 2017 written in C++.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 2 IoCs

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

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab.exe
    "C:\Users\Admin\AppData\Local\Temp\d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1548
    • C:\Users\Admin\AppData\Local\Temp\d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab.exe
      "C:\Users\Admin\AppData\Local\Temp\d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2180
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\6c677cb0-0f61-40b2-b9d7-745626f5cbb3" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2464
      • C:\Users\Admin\AppData\Local\Temp\d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab.exe
        "C:\Users\Admin\AppData\Local\Temp\d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4108
        • C:\Users\Admin\AppData\Local\Temp\d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab.exe
          "C:\Users\Admin\AppData\Local\Temp\d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3544
          • C:\Users\Admin\AppData\Local\85992832-573d-4813-9db8-169f1436d588\build3.exe
            "C:\Users\Admin\AppData\Local\85992832-573d-4813-9db8-169f1436d588\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3272
            • C:\Users\Admin\AppData\Local\85992832-573d-4813-9db8-169f1436d588\build3.exe
              "C:\Users\Admin\AppData\Local\85992832-573d-4813-9db8-169f1436d588\build3.exe"
              6⤵
              • Executes dropped EXE
              • Checks SCSI registry key(s)
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of WriteProcessMemory
              PID:4888
              • C:\Windows\SysWOW64\svchost.exe
                "C:\Windows\system32\svchost.exe"
                7⤵
                • Adds Run key to start application
                • Modifies registry class
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of WriteProcessMemory
                PID:4992

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

    Filesize

    1KB

    MD5

    fc5408c48a55314c72e200b74330cac4

    SHA1

    7e8889ec3189a40e6078088927bf3612753fa628

    SHA256

    7ea2a016d97635b1367455af2250cbf9e9c34d293829d11fc21ce905347590c4

    SHA512

    481753ef755c188012919ea728ea0395f22b6ce83f2f9a11675be6072f154db141b2382dc62ad7c3c95e36596529176a66f40e3d118cf0e33ea8e6f716ae1d77

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

    Filesize

    724B

    MD5

    8202a1cd02e7d69597995cabbe881a12

    SHA1

    8858d9d934b7aa9330ee73de6c476acf19929ff6

    SHA256

    58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

    SHA512

    97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

    Filesize

    410B

    MD5

    79e74c8a2c618bfe3651753e8136cc32

    SHA1

    b08c1109a4225b8f850f22c5797a0a9f73de66b7

    SHA256

    7703dcef1a5eee81e0b9be6d3e54aa36e28cf9971a13a5d8372b371d21d506f3

    SHA512

    90c1b1ee47ebd3ac3a0be79108ce40280ac094fbae887c67a1620a511ee7ea3f4e23854b548020ef4e426b03f12ca48e6f1bfbdb6a9b755c28db3b57f4aeab3b

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

    Filesize

    392B

    MD5

    37425b58191193c090060cdcc7568597

    SHA1

    bac28285734ec9e1cf795411bfa71b7c2f4b5f56

    SHA256

    29c24e4ce22646a107c91cdaaa5da82950471f7d82de09fcd321f6fa8c67965f

    SHA512

    6fec92ff3e865ad7841a8414fcc4ae8d90d179b0b41c11f120d65623e036244640982897b7800d468f41f9214a60c41718b882acce44fab2aa1b50a66a85f5ae

  • C:\Users\Admin\AppData\Local\6c677cb0-0f61-40b2-b9d7-745626f5cbb3\d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab.exe

    Filesize

    768KB

    MD5

    caf850efed7232888c55264464c05f6e

    SHA1

    d3ee060babd618726f3e1037832744caf5f698ac

    SHA256

    d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab

    SHA512

    1efaefee791c661c01d243c2204dc1014599351fa9c44501d92a1c5234acb4a0a387ac7856c82884f7279c4ccb6ec7c77a2078fee6a000bfb8422604cdefedc4

  • C:\Users\Admin\AppData\Local\85992832-573d-4813-9db8-169f1436d588\build3.exe

    Filesize

    576KB

    MD5

    2e085fcd5f16febf51893d9054b4e565

    SHA1

    a7af6e55904934b7813b1ca03278a6f00f6c9774

    SHA256

    2226caaeaeb0d4c3cbae31480531a200d8119c174bcccdf9fb20d8006abc4298

    SHA512

    7f633cd190286fa183d637572c0eab61a9498323d9f3716e9e0a59d28b7ab9cb83179c894409810b161f73c005d838eecb18d0cd672adaff628f83526cda8d09

  • C:\Users\Admin\AppData\Local\bowsakkdestx.txt

    Filesize

    1KB

    MD5

    3c024fb74d85e0f79aad150ca997fed5

    SHA1

    3bf944aeea717a3e5a63b7df07f74e2d78d476a0

    SHA256

    8f36f0b4d8abc28b10daa36f4c285bc911f91f1346801372e26518b41ffa0b73

    SHA512

    ec42da9e198576e0962b3dd3cbc24c473bcdce8945ccaf8b45d23a05a3b2fbb7a229e35b1ffc958a3b4a46898170329d272359bfb288af7649e093e0160d639e

  • memory/1548-0-0x0000000000400000-0x000000000253B000-memory.dmp

    Filesize

    33.2MB

  • memory/1548-6-0x0000000000400000-0x000000000253B000-memory.dmp

    Filesize

    33.2MB

  • memory/1548-4-0x00000000043E0000-0x00000000044FB000-memory.dmp

    Filesize

    1.1MB

  • memory/1548-2-0x0000000004330000-0x00000000043D2000-memory.dmp

    Filesize

    648KB

  • memory/2180-19-0x00000000022F0000-0x0000000002628000-memory.dmp

    Filesize

    3.2MB

  • memory/2180-20-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2180-8-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2180-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2180-7-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2180-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3272-47-0x00000000001D0000-0x00000000001D1000-memory.dmp

    Filesize

    4KB

  • memory/3544-80-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3544-63-0x00000000031E0000-0x00000000031E1000-memory.dmp

    Filesize

    4KB

  • memory/3544-28-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3544-33-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3544-34-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3544-25-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3544-44-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3544-27-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3544-77-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3544-76-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3544-74-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3544-73-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3544-70-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3544-81-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3544-66-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4108-23-0x00000000041E0000-0x000000000427E000-memory.dmp

    Filesize

    632KB

  • memory/4108-21-0x0000000000400000-0x000000000253B000-memory.dmp

    Filesize

    33.2MB

  • memory/4108-26-0x0000000000400000-0x000000000253B000-memory.dmp

    Filesize

    33.2MB

  • memory/4888-54-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/4888-61-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/4888-49-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/4888-51-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/4888-53-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/4992-64-0x0000000000D10000-0x0000000000D46000-memory.dmp

    Filesize

    216KB

  • memory/4992-55-0x0000000000D10000-0x0000000000D46000-memory.dmp

    Filesize

    216KB

  • memory/4992-56-0x0000000000D10000-0x0000000000D46000-memory.dmp

    Filesize

    216KB

  • memory/4992-58-0x0000000000D10000-0x0000000000D46000-memory.dmp

    Filesize

    216KB

  • memory/4992-57-0x0000000000D10000-0x0000000000D46000-memory.dmp

    Filesize

    216KB

  • memory/4992-59-0x0000000000D10000-0x0000000000D46000-memory.dmp

    Filesize

    216KB

  • memory/4992-60-0x0000000000D10000-0x0000000000D46000-memory.dmp

    Filesize

    216KB