Analysis

  • max time kernel
    155s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    10-01-2022 15:07

General

  • Target

    MTC_Bank-swift-009883945 (1).xlsx

  • Size

    310KB

  • MD5

    a3d4cdc8a20ab70adb1e9cb60a4b5a17

  • SHA1

    b216487eafb1f1e8017a1a4992484a720c6852be

  • SHA256

    5f68d743559b59681d1bc2b6bac40f5cc4e3155a2c77f11cbbde4337729fbe02

  • SHA512

    1d6168562018006ca5c29a4af03938b328fe00de3d5c4bf0e1141a90172643d1977cafddaacc8a6a7759747d69d39300c1c790e280c57db3aa966b019c7b3329

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

nt3f

Decoy

tricyclee.com

kxsw999.com

wisteria-pavilion.com

bellaclancy.com

promissioskincare.com

hzy001.xyz

checkouthomehd.com

soladere.com

point4sales.com

socalmafia.com

libertadysarmiento.online

nftthirty.com

digitalgoldcryptostock.net

tulekiloscaird.com

austinfishandchicken.com

wlxxch.com

mgav51.xyz

landbanking.global

saprove.com

babyfaces.skin

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 4 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Drops file in System32 directory 1 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1192
    • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\MTC_Bank-swift-009883945 (1).xlsx"
      2⤵
      • Enumerates system info in registry
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:1600
    • C:\Windows\SysWOW64\ipconfig.exe
      "C:\Windows\SysWOW64\ipconfig.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Gathers network information
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:1864
  • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
    "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
    1⤵
    • Blocklisted process makes network request
    • Loads dropped DLL
    • Launches Equation Editor
    • Suspicious use of WriteProcessMemory
    PID:1476
    • C:\Users\Public\vbc.exe
      "C:\Users\Public\vbc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1784
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wLPRsknlyKFXuL.exe"
        3⤵
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:912
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wLPRsknlyKFXuL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF0E4.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1308
      • C:\Users\Public\vbc.exe
        "C:\Users\Public\vbc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1720

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scripting

1
T1064

Scheduled Task

1
T1053

Command-Line Interface

1
T1059

Exploitation for Client Execution

1
T1203

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Scripting

1
T1064

Modify Registry

1
T1112

Discovery

System Information Discovery

3
T1082

Query Registry

1
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF0E4.tmp
    MD5

    0d87e4baec25a048c6b40293736cd63d

    SHA1

    578d487657ad2fc3925d0ea89c027a8093aca712

    SHA256

    e18b150d09817366a8ca43716bb15490b7085a5e6a089eab55d4e1d06289ad3a

    SHA512

    6f1d2b531a2ff7bab5848ba56d98b72d5f082e5ec764c1bfda60e73faf7bc6a2794e23b950928bfca78236150ad2a0c65432839fc0f3a2a1e9e63638e638eac1

  • C:\Users\Public\vbc.exe
    MD5

    97ccf6ebd6abe7786677f0e6e6b8aef0

    SHA1

    be06f330c04450b80848d8c5ed680dd8fce61c21

    SHA256

    44ed69358c6ef98ffc0e4da5aee0692f74fd03b8a7ea7c5c3b08f427f32a45e5

    SHA512

    0f4d549a3798ba0e9e10bc2e7f680290f5fc5b11c39e3f784cf04c1c0969739d906bd556f5c7f722c4a6d4d2d1ed2ab3246d2e668f03149fa1a033eeff17e761

  • C:\Users\Public\vbc.exe
    MD5

    97ccf6ebd6abe7786677f0e6e6b8aef0

    SHA1

    be06f330c04450b80848d8c5ed680dd8fce61c21

    SHA256

    44ed69358c6ef98ffc0e4da5aee0692f74fd03b8a7ea7c5c3b08f427f32a45e5

    SHA512

    0f4d549a3798ba0e9e10bc2e7f680290f5fc5b11c39e3f784cf04c1c0969739d906bd556f5c7f722c4a6d4d2d1ed2ab3246d2e668f03149fa1a033eeff17e761

  • C:\Users\Public\vbc.exe
    MD5

    97ccf6ebd6abe7786677f0e6e6b8aef0

    SHA1

    be06f330c04450b80848d8c5ed680dd8fce61c21

    SHA256

    44ed69358c6ef98ffc0e4da5aee0692f74fd03b8a7ea7c5c3b08f427f32a45e5

    SHA512

    0f4d549a3798ba0e9e10bc2e7f680290f5fc5b11c39e3f784cf04c1c0969739d906bd556f5c7f722c4a6d4d2d1ed2ab3246d2e668f03149fa1a033eeff17e761

  • \Users\Public\vbc.exe
    MD5

    97ccf6ebd6abe7786677f0e6e6b8aef0

    SHA1

    be06f330c04450b80848d8c5ed680dd8fce61c21

    SHA256

    44ed69358c6ef98ffc0e4da5aee0692f74fd03b8a7ea7c5c3b08f427f32a45e5

    SHA512

    0f4d549a3798ba0e9e10bc2e7f680290f5fc5b11c39e3f784cf04c1c0969739d906bd556f5c7f722c4a6d4d2d1ed2ab3246d2e668f03149fa1a033eeff17e761

  • \Users\Public\vbc.exe
    MD5

    97ccf6ebd6abe7786677f0e6e6b8aef0

    SHA1

    be06f330c04450b80848d8c5ed680dd8fce61c21

    SHA256

    44ed69358c6ef98ffc0e4da5aee0692f74fd03b8a7ea7c5c3b08f427f32a45e5

    SHA512

    0f4d549a3798ba0e9e10bc2e7f680290f5fc5b11c39e3f784cf04c1c0969739d906bd556f5c7f722c4a6d4d2d1ed2ab3246d2e668f03149fa1a033eeff17e761

  • \Users\Public\vbc.exe
    MD5

    97ccf6ebd6abe7786677f0e6e6b8aef0

    SHA1

    be06f330c04450b80848d8c5ed680dd8fce61c21

    SHA256

    44ed69358c6ef98ffc0e4da5aee0692f74fd03b8a7ea7c5c3b08f427f32a45e5

    SHA512

    0f4d549a3798ba0e9e10bc2e7f680290f5fc5b11c39e3f784cf04c1c0969739d906bd556f5c7f722c4a6d4d2d1ed2ab3246d2e668f03149fa1a033eeff17e761

  • \Users\Public\vbc.exe
    MD5

    97ccf6ebd6abe7786677f0e6e6b8aef0

    SHA1

    be06f330c04450b80848d8c5ed680dd8fce61c21

    SHA256

    44ed69358c6ef98ffc0e4da5aee0692f74fd03b8a7ea7c5c3b08f427f32a45e5

    SHA512

    0f4d549a3798ba0e9e10bc2e7f680290f5fc5b11c39e3f784cf04c1c0969739d906bd556f5c7f722c4a6d4d2d1ed2ab3246d2e668f03149fa1a033eeff17e761

  • memory/912-85-0x0000000002420000-0x000000000306A000-memory.dmp
    Filesize

    12.3MB

  • memory/912-70-0x0000000000000000-mapping.dmp
  • memory/912-80-0x0000000002420000-0x000000000306A000-memory.dmp
    Filesize

    12.3MB

  • memory/912-82-0x0000000002420000-0x000000000306A000-memory.dmp
    Filesize

    12.3MB

  • memory/1192-93-0x00000000096A0000-0x0000000009828000-memory.dmp
    Filesize

    1.5MB

  • memory/1192-84-0x0000000003CD0000-0x0000000003DA2000-memory.dmp
    Filesize

    840KB

  • memory/1308-71-0x0000000000000000-mapping.dmp
  • memory/1476-57-0x0000000075471000-0x0000000075473000-memory.dmp
    Filesize

    8KB

  • memory/1600-55-0x0000000070E01000-0x0000000070E03000-memory.dmp
    Filesize

    8KB

  • memory/1600-54-0x000000002F341000-0x000000002F344000-memory.dmp
    Filesize

    12KB

  • memory/1600-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1600-92-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1720-77-0x000000000041D460-mapping.dmp
  • memory/1720-75-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/1720-74-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/1720-76-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/1720-81-0x0000000000C00000-0x0000000000F03000-memory.dmp
    Filesize

    3.0MB

  • memory/1720-83-0x0000000000360000-0x0000000000371000-memory.dmp
    Filesize

    68KB

  • memory/1784-66-0x0000000000840000-0x0000000000924000-memory.dmp
    Filesize

    912KB

  • memory/1784-67-0x0000000004BA0000-0x0000000004BA1000-memory.dmp
    Filesize

    4KB

  • memory/1784-68-0x00000000003F0000-0x00000000003FE000-memory.dmp
    Filesize

    56KB

  • memory/1784-62-0x0000000000000000-mapping.dmp
  • memory/1784-69-0x0000000004FC0000-0x000000000501E000-memory.dmp
    Filesize

    376KB

  • memory/1784-65-0x0000000000840000-0x0000000000924000-memory.dmp
    Filesize

    912KB

  • memory/1864-86-0x0000000000000000-mapping.dmp
  • memory/1864-88-0x0000000000CA0000-0x0000000000CAA000-memory.dmp
    Filesize

    40KB

  • memory/1864-90-0x0000000002240000-0x0000000002543000-memory.dmp
    Filesize

    3.0MB

  • memory/1864-89-0x0000000000080000-0x00000000000A9000-memory.dmp
    Filesize

    164KB

  • memory/1864-91-0x0000000000A40000-0x0000000000AD0000-memory.dmp
    Filesize

    576KB