Analysis

  • max time kernel
    148s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    26-03-2024 03:32

General

  • Target

    220127-wwjlqsgggl.exe

  • Size

    737KB

  • MD5

    21af1ded26112901974640a7f8372340

  • SHA1

    c4a5642639b301fe79505eddbbbc4e8e327d189f

  • SHA256

    e13535e6a33373dbbe0a5215b917b57915090a534b3703732d03d65299736c31

  • SHA512

    ea6395db3a1dffd64e768007fbd6ab482650714b4c193d4cdc6a75476205309aabbd43f7f27b79cbff054f95bfd0960f306d2a4fae43f9846e0cadd1337ec868

  • SSDEEP

    12288:ELWySHpi6zCxuJQjz/RXWZkuAYLbGPgPRmgScOZ6uu+/em3WLP9aCI7M6R4GP461:EL4JiQ5Qj7RXWZkuAYnGwRnFO0uuoWL+

Malware Config

Extracted

Family

djvu

C2

http://tzgl.org/fhsgtsspen6/get.php

Attributes
  • extension

    .yoqs

  • offline_id

    Gy1ekaHyw11ZDr43dKFxYo9wA3NxFYOUEc6Pwvt1

  • payload_url

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

    http://tzgl.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-veBR09KNyi 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: 0380UIhfSd

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 13 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
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 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).

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\220127-wwjlqsgggl.exe
    "C:\Users\Admin\AppData\Local\Temp\220127-wwjlqsgggl.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2088
    • C:\Users\Admin\AppData\Local\Temp\220127-wwjlqsgggl.exe
      "C:\Users\Admin\AppData\Local\Temp\220127-wwjlqsgggl.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2052
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\c66f5bf8-1a7b-4378-b15d-424f6bb4b5da" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2544
      • C:\Users\Admin\AppData\Local\Temp\220127-wwjlqsgggl.exe
        "C:\Users\Admin\AppData\Local\Temp\220127-wwjlqsgggl.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2624
        • C:\Users\Admin\AppData\Local\Temp\220127-wwjlqsgggl.exe
          "C:\Users\Admin\AppData\Local\Temp\220127-wwjlqsgggl.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2496
          • C:\Users\Admin\AppData\Local\4a3313f4-ccfa-4237-a1ee-a95d66df2597\build3.exe
            "C:\Users\Admin\AppData\Local\4a3313f4-ccfa-4237-a1ee-a95d66df2597\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1220
            • C:\Users\Admin\AppData\Local\4a3313f4-ccfa-4237-a1ee-a95d66df2597\build3.exe
              "C:\Users\Admin\AppData\Local\4a3313f4-ccfa-4237-a1ee-a95d66df2597\build3.exe"
              6⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of WriteProcessMemory
              PID:2316
              • 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:1844

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    1KB

    MD5

    dc83f7acaed8a3525bc9a91778a357af

    SHA1

    4c3e9df82f1c3d7ae06b7c8cb83c0d76245bfd1f

    SHA256

    bcba6e9a08beee95d60acea8c5b0646042759e4d125f2956ba3834fb84434970

    SHA512

    88c74e4c54f026c2501a69a925b39ac7833f3bed0d0f9b747b8d4546a9849fd51b971a5cbb540b44fa2ec8df163756040560ef3de75e43e24515427f4c8fb6f0

  • 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

    62075df888fb281570d50e270f8fa776

    SHA1

    3509839f7e769401ac1434ea4a550cc5f563af5d

    SHA256

    6a06d34143ef6302b4a989d8d728bc0802f032e8239ccbe4aa7b9f2c2d5905c0

    SHA512

    2522d3a31c4b7eeb21880769d73ead612f28e4721df1f569bc5ba31c87d78f0cb1145be68a2a6b6235395009196090da4430f8f7b04f696be284afdfacbd2105

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    084b1d1d22626a22954e0a90353dc621

    SHA1

    3c5aa4f18ff12f4b5f8785a8a41d099005e04e4b

    SHA256

    be0630bd72bb2d77bcce645dc3785a105df0a965ee410f310abfae2a486cd692

    SHA512

    c5df96f1f226d6a58542aad97b3e8ea4f59743d0e633d822fd52ed6368158ec81b78455cb2d979e7a1297d667700670e69f12eccae80424e11a0834b92ef6e8c

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

    Filesize

    392B

    MD5

    2c4cc897c2a7af29f0fb487b992580b4

    SHA1

    b983e697f4f55fb3002205139ef4d2bd5e5459cf

    SHA256

    e7a8980503c55e29f030856300865d1e15ab00f19eba738da92c114a9a2926d8

    SHA512

    38b3b06059e0cc11c3288e27ffdda44b0d9a8f9754ce125457a9e37982ecfd4960b1ed0880d11c5d97c2f42b0a7d5023277092e3cac1acf561769ea52f16f4b2

  • C:\Users\Admin\AppData\Local\Temp\Cab4AE5.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

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

    Filesize

    1KB

    MD5

    3c024fb74d85e0f79aad150ca997fed5

    SHA1

    3bf944aeea717a3e5a63b7df07f74e2d78d476a0

    SHA256

    8f36f0b4d8abc28b10daa36f4c285bc911f91f1346801372e26518b41ffa0b73

    SHA512

    ec42da9e198576e0962b3dd3cbc24c473bcdce8945ccaf8b45d23a05a3b2fbb7a229e35b1ffc958a3b4a46898170329d272359bfb288af7649e093e0160d639e

  • C:\Users\Admin\AppData\Local\c66f5bf8-1a7b-4378-b15d-424f6bb4b5da\220127-wwjlqsgggl.exe

    Filesize

    737KB

    MD5

    21af1ded26112901974640a7f8372340

    SHA1

    c4a5642639b301fe79505eddbbbc4e8e327d189f

    SHA256

    e13535e6a33373dbbe0a5215b917b57915090a534b3703732d03d65299736c31

    SHA512

    ea6395db3a1dffd64e768007fbd6ab482650714b4c193d4cdc6a75476205309aabbd43f7f27b79cbff054f95bfd0960f306d2a4fae43f9846e0cadd1337ec868

  • \Users\Admin\AppData\Local\4a3313f4-ccfa-4237-a1ee-a95d66df2597\build3.exe

    Filesize

    576KB

    MD5

    2e085fcd5f16febf51893d9054b4e565

    SHA1

    a7af6e55904934b7813b1ca03278a6f00f6c9774

    SHA256

    2226caaeaeb0d4c3cbae31480531a200d8119c174bcccdf9fb20d8006abc4298

    SHA512

    7f633cd190286fa183d637572c0eab61a9498323d9f3716e9e0a59d28b7ab9cb83179c894409810b161f73c005d838eecb18d0cd672adaff628f83526cda8d09

  • memory/1844-90-0x0000000000080000-0x00000000000B6000-memory.dmp

    Filesize

    216KB

  • memory/1844-85-0x0000000000110000-0x00000000001A0000-memory.dmp

    Filesize

    576KB

  • memory/1844-88-0x0000000000080000-0x00000000000B6000-memory.dmp

    Filesize

    216KB

  • memory/1844-86-0x0000000000080000-0x00000000000B6000-memory.dmp

    Filesize

    216KB

  • memory/1844-96-0x0000000000080000-0x00000000000B6000-memory.dmp

    Filesize

    216KB

  • memory/1844-87-0x0000000000080000-0x00000000000B6000-memory.dmp

    Filesize

    216KB

  • memory/1844-89-0x0000000000080000-0x00000000000B6000-memory.dmp

    Filesize

    216KB

  • memory/2052-8-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2052-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2052-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2052-7-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2052-26-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2088-3-0x00000000006A0000-0x00000000007BB000-memory.dmp

    Filesize

    1.1MB

  • memory/2088-1-0x0000000000310000-0x00000000003A1000-memory.dmp

    Filesize

    580KB

  • memory/2088-0-0x0000000000310000-0x00000000003A1000-memory.dmp

    Filesize

    580KB

  • memory/2316-68-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/2316-91-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/2316-76-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/2316-78-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2316-80-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/2316-83-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/2316-72-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/2316-70-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/2316-74-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/2496-54-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2496-92-0x0000000000590000-0x0000000000591000-memory.dmp

    Filesize

    4KB

  • memory/2496-63-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2496-53-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2496-39-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2496-95-0x0000000000580000-0x0000000000581000-memory.dmp

    Filesize

    4KB

  • memory/2496-103-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2496-105-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2496-106-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2496-108-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2624-28-0x00000000004C0000-0x0000000000551000-memory.dmp

    Filesize

    580KB

  • memory/2624-27-0x00000000004C0000-0x0000000000551000-memory.dmp

    Filesize

    580KB