Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2022 07:00

General

  • Target

    RFQ 97571784.exe

  • Size

    599KB

  • MD5

    c74c07398f92eaca8cc4e773796d6497

  • SHA1

    cb61c996bb0b7b9fbb4e4baece2fa6e142436ee5

  • SHA256

    5eacddfba11e9ce3946802e55e8abb159eb51a3bd27c7a92a68b8b23dcee79c8

  • SHA512

    0aa0ac665bab40ee96d99ba2f38c329e9d707688ccb8f07e04728e88eb2aaf37d1d65eaab06ff43de1d616261a1ac10428630b16c2cabf2b232156d5cdfdda11

  • SSDEEP

    12288:dToPWBv/cpGrU3yp0vx7mRfPClpthYMdTr7+XPho:dTbBv5rUO2mhsNv7ePho

Malware Config

Extracted

Family

formbook

Campaign

hzb3

Decoy

BVGWUXYpaaEaNSjsCHhJnDJz463cqQ==

CEqdZb0KaOLLbWqrDVTgc20=

nBv0jSFiQHxtE6awQnm2

E1sGpCJYtB8ImaguUyF6yQ==

PMBND7LzJGZH7CXulclbs2c=

u9zzlFGDXo6LLbGwQnm2

SaJjLbtVlMgsP5ZQRj4=

wckwEbwBbKA2X3g=

rPxB8ePUxfu4pilu

S562QFeKY5P//qawQnm2

BkEfWXZuY3ihKW8=

ZanakqMxkP7VdNfWdD4FGDqF

PYYbtzdINC1J0OYzQCk=

Fmg9LBxaPQ==

4eXWfoC06yGAkQ0l+Txs2w==

n68j2X6+CIhsD5GiCMYBsHI=

hRv6hpW3qfLbdI1XJ/J825G1TslJ+1JE

X6PAVGfwPHihKW8=

7zn1tkuDaZ2FKbGwQnm2

lB0m5ghWsSmMpIUS8EBM31l/463cqQ==

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 8 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1372
    • C:\Users\Admin\AppData\Local\Temp\RFQ 97571784.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ 97571784.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1280
      • C:\Users\Admin\AppData\Local\Temp\iixjudddfwshr.exe
        "C:\Users\Admin\AppData\Local\Temp\iixjudddfwshr.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1724
        • C:\Users\Admin\AppData\Local\Temp\iixjudddfwshr.exe
          "C:\Users\Admin\AppData\Local\Temp\iixjudddfwshr.exe"
          4⤵
          • Checks computer location settings
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:1136
    • C:\Windows\SysWOW64\mstsc.exe
      "C:\Windows\SysWOW64\mstsc.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:960
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:1736

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\hwbrasizdbd.le
      Filesize

      185KB

      MD5

      4299f4f2b3ea76e3fe4e0261ea5f72ce

      SHA1

      3830452df15e69b8bd7c38886701fd60048790fd

      SHA256

      372336cedf34f67ccd3a0d1069b9c292f006f406e7aa9677cd1ec8a9488428af

      SHA512

      a9dc771188f58abf079943bb1602009bd573c60f8796e29fb619a60db212684cb1e93aae19331dbbbed699c409cb3dbc8bd516e019a972431baaa8c95fdcd85b

    • C:\Users\Admin\AppData\Local\Temp\iixjudddfwshr.exe
      Filesize

      6KB

      MD5

      67b6f61c2a30d967b998d9c9e31831d8

      SHA1

      88952a9573e3dbabbd7758416a4d85b44c9d65b8

      SHA256

      bdda7a80e82b6ef5a81ae54269b1438369ec9766a499db58e46d4f08afe185a2

      SHA512

      25817b24e40a27f0891b6723c2d3575a4141c5011c15e81b11f3ec61e72e5ca9e88db9a0bc3bed4dea4e6c0da17bf7a3dea77220f83160232c48fd30754247d5

    • C:\Users\Admin\AppData\Local\Temp\iixjudddfwshr.exe
      Filesize

      6KB

      MD5

      67b6f61c2a30d967b998d9c9e31831d8

      SHA1

      88952a9573e3dbabbd7758416a4d85b44c9d65b8

      SHA256

      bdda7a80e82b6ef5a81ae54269b1438369ec9766a499db58e46d4f08afe185a2

      SHA512

      25817b24e40a27f0891b6723c2d3575a4141c5011c15e81b11f3ec61e72e5ca9e88db9a0bc3bed4dea4e6c0da17bf7a3dea77220f83160232c48fd30754247d5

    • C:\Users\Admin\AppData\Local\Temp\iixjudddfwshr.exe
      Filesize

      6KB

      MD5

      67b6f61c2a30d967b998d9c9e31831d8

      SHA1

      88952a9573e3dbabbd7758416a4d85b44c9d65b8

      SHA256

      bdda7a80e82b6ef5a81ae54269b1438369ec9766a499db58e46d4f08afe185a2

      SHA512

      25817b24e40a27f0891b6723c2d3575a4141c5011c15e81b11f3ec61e72e5ca9e88db9a0bc3bed4dea4e6c0da17bf7a3dea77220f83160232c48fd30754247d5

    • C:\Users\Admin\AppData\Local\Temp\loacdrct.pp
      Filesize

      4KB

      MD5

      d39723aadd9db099d6c6892c717656bb

      SHA1

      25b53f386583a641ecdea2417c08fd1abc460d03

      SHA256

      b407505c48ebc8488b647edf91212f451fb3b47a875870d5f6381ba0c69ee809

      SHA512

      adc65faf0f508196f8991149e6c670ecb7527d0a608ce026c30380efcd1d886491f16e21dd0f6e1b13482b6291f2e1cf0704f6a2c282fc759f008d15d67a7eab

    • \Users\Admin\AppData\Local\Temp\iixjudddfwshr.exe
      Filesize

      6KB

      MD5

      67b6f61c2a30d967b998d9c9e31831d8

      SHA1

      88952a9573e3dbabbd7758416a4d85b44c9d65b8

      SHA256

      bdda7a80e82b6ef5a81ae54269b1438369ec9766a499db58e46d4f08afe185a2

      SHA512

      25817b24e40a27f0891b6723c2d3575a4141c5011c15e81b11f3ec61e72e5ca9e88db9a0bc3bed4dea4e6c0da17bf7a3dea77220f83160232c48fd30754247d5

    • \Users\Admin\AppData\Local\Temp\iixjudddfwshr.exe
      Filesize

      6KB

      MD5

      67b6f61c2a30d967b998d9c9e31831d8

      SHA1

      88952a9573e3dbabbd7758416a4d85b44c9d65b8

      SHA256

      bdda7a80e82b6ef5a81ae54269b1438369ec9766a499db58e46d4f08afe185a2

      SHA512

      25817b24e40a27f0891b6723c2d3575a4141c5011c15e81b11f3ec61e72e5ca9e88db9a0bc3bed4dea4e6c0da17bf7a3dea77220f83160232c48fd30754247d5

    • \Users\Admin\AppData\Local\Temp\iixjudddfwshr.exe
      Filesize

      6KB

      MD5

      67b6f61c2a30d967b998d9c9e31831d8

      SHA1

      88952a9573e3dbabbd7758416a4d85b44c9d65b8

      SHA256

      bdda7a80e82b6ef5a81ae54269b1438369ec9766a499db58e46d4f08afe185a2

      SHA512

      25817b24e40a27f0891b6723c2d3575a4141c5011c15e81b11f3ec61e72e5ca9e88db9a0bc3bed4dea4e6c0da17bf7a3dea77220f83160232c48fd30754247d5

    • \Users\Admin\AppData\Local\Temp\iixjudddfwshr.exe
      Filesize

      6KB

      MD5

      67b6f61c2a30d967b998d9c9e31831d8

      SHA1

      88952a9573e3dbabbd7758416a4d85b44c9d65b8

      SHA256

      bdda7a80e82b6ef5a81ae54269b1438369ec9766a499db58e46d4f08afe185a2

      SHA512

      25817b24e40a27f0891b6723c2d3575a4141c5011c15e81b11f3ec61e72e5ca9e88db9a0bc3bed4dea4e6c0da17bf7a3dea77220f83160232c48fd30754247d5

    • \Users\Admin\AppData\Local\Temp\iixjudddfwshr.exe
      Filesize

      6KB

      MD5

      67b6f61c2a30d967b998d9c9e31831d8

      SHA1

      88952a9573e3dbabbd7758416a4d85b44c9d65b8

      SHA256

      bdda7a80e82b6ef5a81ae54269b1438369ec9766a499db58e46d4f08afe185a2

      SHA512

      25817b24e40a27f0891b6723c2d3575a4141c5011c15e81b11f3ec61e72e5ca9e88db9a0bc3bed4dea4e6c0da17bf7a3dea77220f83160232c48fd30754247d5

    • \Users\Admin\AppData\Local\Temp\iixjudddfwshr.exe
      Filesize

      6KB

      MD5

      67b6f61c2a30d967b998d9c9e31831d8

      SHA1

      88952a9573e3dbabbd7758416a4d85b44c9d65b8

      SHA256

      bdda7a80e82b6ef5a81ae54269b1438369ec9766a499db58e46d4f08afe185a2

      SHA512

      25817b24e40a27f0891b6723c2d3575a4141c5011c15e81b11f3ec61e72e5ca9e88db9a0bc3bed4dea4e6c0da17bf7a3dea77220f83160232c48fd30754247d5

    • \Users\Admin\AppData\Local\Temp\sqlite3.dll
      Filesize

      895KB

      MD5

      1eb6acf76a15b74b38333af47dc1218d

      SHA1

      a3fbc817f59b6a8899dc338cc15a75cdd17dfff1

      SHA256

      a5ef3a78eb333b0e6dca194ea711dcbb036119a788ecfe125f05176fb0fb70a3

      SHA512

      717931aa928de150abbb70d523c7dbd472bfa6c511ab55e0b50df8d9661d33635156ed7b750285fa383cdd4064f225ea022f0bead3e066ee2beba84ef5731c15

    • memory/960-79-0x0000000000A10000-0x0000000000A9F000-memory.dmp
      Filesize

      572KB

    • memory/960-73-0x0000000000000000-mapping.dmp
    • memory/960-78-0x0000000002240000-0x0000000002543000-memory.dmp
      Filesize

      3.0MB

    • memory/960-77-0x0000000000080000-0x00000000000AD000-memory.dmp
      Filesize

      180KB

    • memory/960-76-0x0000000000D30000-0x0000000000E34000-memory.dmp
      Filesize

      1.0MB

    • memory/1136-67-0x00000000004012B0-mapping.dmp
    • memory/1136-74-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/1136-71-0x0000000000070000-0x0000000000080000-memory.dmp
      Filesize

      64KB

    • memory/1136-70-0x00000000008D0000-0x0000000000BD3000-memory.dmp
      Filesize

      3.0MB

    • memory/1136-69-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/1280-54-0x0000000075811000-0x0000000075813000-memory.dmp
      Filesize

      8KB

    • memory/1372-72-0x00000000071B0000-0x0000000007321000-memory.dmp
      Filesize

      1.4MB

    • memory/1372-80-0x0000000007330000-0x0000000007492000-memory.dmp
      Filesize

      1.4MB

    • memory/1372-81-0x0000000007330000-0x0000000007492000-memory.dmp
      Filesize

      1.4MB

    • memory/1724-60-0x0000000000000000-mapping.dmp