Resubmissions

05-11-2021 06:17

211105-g2bezsfhaj 10

05-11-2021 06:04

211105-gsw1bsfggr 10

Analysis

  • max time kernel
    154s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    05-11-2021 06:04

General

  • Target

    iu35ryECDcB7YnmA9O.exe

  • Size

    854KB

  • MD5

    6160d9cc6de5bd6d63abf3a90492f72b

  • SHA1

    b37c3ef6fc4c4af664ba0b8dbaaeb065988980d5

  • SHA256

    6542a64376516f4aa87b9dd2cb2978b6e83441964110aa291d7a04bceb511d97

  • SHA512

    f5ef576b2b5de73b6287be8b49454072744afae2e233e3efaf6666f8509472339eb8d9123220b8b1fbe4100b76f51777294551afa3dab8c095b71e2f51414c08

Malware Config

Extracted

Family

redline

Botnet

031121

C2

m360li.info:81

Signatures

  • NetSupport

    NetSupport is a remote access tool sold as a legitimate system administration software.

  • RedLine

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

  • RedLine Payload 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Drops file in Windows directory 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 3 IoCs
  • Modifies registry class 64 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\iu35ryECDcB7YnmA9O.exe
    "C:\Users\Admin\AppData\Local\Temp\iu35ryECDcB7YnmA9O.exe"
    1⤵
    • Checks computer location settings
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:3592
    • C:\Users\Admin\AppData\Local\Temp\Skype.exe
      C:\Users\Admin\AppData\Local\Temp\Skype.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4064
    • C:\Users\Admin\AppData\Local\Temp\WinRar.exe
      C:\Users\Admin\AppData\Local\Temp\WinRar.exe
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Suspicious use of WriteProcessMemory
      PID:508
      • C:\Users\Admin\AppData\Roaming\WinSup\client32.exe
        "C:\Users\Admin\AppData\Roaming\WinSup\client32.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:808
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /k ping 0 & del C:\Users\Admin\AppData\Local\Temp\iu35ryECDcB7YnmA9O.exe & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4612
      • C:\Windows\SysWOW64\PING.EXE
        ping 0
        3⤵
        • Runs ping.exe
        PID:4328
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:3796
  • C:\Windows\system32\browser_broker.exe
    C:\Windows\system32\browser_broker.exe -Embedding
    1⤵
    • Modifies Internet Explorer settings
    PID:3712
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4960
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:5080
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:2408
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    PID:3168
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    PID:3644

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Skype.exe
    MD5

    21eac16294ef9ac3a75775be71d7549b

    SHA1

    31b25f77abb0edfcd1fa6a6432b780e865df6bce

    SHA256

    634d3655e595ce29d36051ce297f6a28ad93bc620b030b0ac0d1345fb7fd505a

    SHA512

    8f1e4498f7eb46bccd20da995fc7c76607f400e81b88a5e7a08bc74e0345f8898a63feaa9f1ae01140aef4321cb29ae8fddcd152b2b1789e8f581fca1ddd0f5a

  • C:\Users\Admin\AppData\Local\Temp\Skype.exe
    MD5

    21eac16294ef9ac3a75775be71d7549b

    SHA1

    31b25f77abb0edfcd1fa6a6432b780e865df6bce

    SHA256

    634d3655e595ce29d36051ce297f6a28ad93bc620b030b0ac0d1345fb7fd505a

    SHA512

    8f1e4498f7eb46bccd20da995fc7c76607f400e81b88a5e7a08bc74e0345f8898a63feaa9f1ae01140aef4321cb29ae8fddcd152b2b1789e8f581fca1ddd0f5a

  • C:\Users\Admin\AppData\Local\Temp\WinRar.exe
    MD5

    3a4a597fb97793b774baca24094fa9bc

    SHA1

    f143c5cffb22a1c49d52b446966df19f9196918e

    SHA256

    7c7d0cb1027501458bae61f641a5b2ccd97df0b2f0635ec9c545fd31d3e438d0

    SHA512

    4d8bbce1d8790be564672723f58216d1be023a248ad163af274b5f210ad227f151767394b3d04413112b5d24c90cdfe357f3b879fd1ceefffd426fe3136f3f0c

  • C:\Users\Admin\AppData\Local\Temp\WinRar.exe
    MD5

    3a4a597fb97793b774baca24094fa9bc

    SHA1

    f143c5cffb22a1c49d52b446966df19f9196918e

    SHA256

    7c7d0cb1027501458bae61f641a5b2ccd97df0b2f0635ec9c545fd31d3e438d0

    SHA512

    4d8bbce1d8790be564672723f58216d1be023a248ad163af274b5f210ad227f151767394b3d04413112b5d24c90cdfe357f3b879fd1ceefffd426fe3136f3f0c

  • C:\Users\Admin\AppData\Roaming\WinSup\HTCTL32.DLL
    MD5

    2d3b207c8a48148296156e5725426c7f

    SHA1

    ad464eb7cf5c19c8a443ab5b590440b32dbc618f

    SHA256

    edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796

    SHA512

    55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

  • C:\Users\Admin\AppData\Roaming\WinSup\MSVCR100.dll
    MD5

    0e37fbfa79d349d672456923ec5fbbe3

    SHA1

    4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

    SHA256

    8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

    SHA512

    2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

  • C:\Users\Admin\AppData\Roaming\WinSup\NSM.LIC
    MD5

    8614c2008044a081e9d26d8db1571f4a

    SHA1

    1b007f05c289d0b71d542520b25fe65c6b6fcbe3

    SHA256

    df622fc8bc605023730d3ad952d69fcbd8383ce5440d63da0df20fb139355ec9

    SHA512

    449244a508daaacde53078b826f7b482650acc3f61e8235fa892a737bebbecb178061d0aa1e99cd74da7885c86cebb2727d6e85384ecd68187d7e6e94f018ae9

  • C:\Users\Admin\AppData\Roaming\WinSup\PCICL32.dll
    MD5

    00587238d16012152c2e951a087f2cc9

    SHA1

    c4e27a43075ce993ff6bb033360af386b2fc58ff

    SHA256

    63aa18c32af7144156e7ee2d5ba0fa4f5872a7deb56894f6f96505cbc9afe6f8

    SHA512

    637950a1f78d3f3d02c30a49a16e91cf3dfccc59104041876789bd7fdf9224d187209547766b91404c67319e13d1606da7cec397315495962cbf3e2ccd5f1226

  • C:\Users\Admin\AppData\Roaming\WinSup\TCCTL32.DLL
    MD5

    eab603d12705752e3d268d86dff74ed4

    SHA1

    01873977c871d3346d795cf7e3888685de9f0b16

    SHA256

    6795d760ce7a955df6c2f5a062e296128efdb8c908908eda4d666926980447ea

    SHA512

    77de0d9c93ccba967db70b280a85a770b3d8bea3b707b1abb037b2826b48898fec87924e1a6cce218c43478e5209e9eb9781051b4c3b450bea3cd27dbd32c7f3

  • C:\Users\Admin\AppData\Roaming\WinSup\client32.exe
    MD5

    f76954b68cc390f8009f1a052283a740

    SHA1

    3112a39aad950045d6422fb2abe98bed05931e6c

    SHA256

    63315df7981130853d75dc753e5776bdf371811bcfce351557c1e45afdd1ebfb

    SHA512

    d3aea0867b488161f62e43e7c250ad3917713b8b183139fb6e06c71594fb0cec769e1494b7cc257117992ae4aa891e056f99c25431ae19f032b1ba779051a880

  • C:\Users\Admin\AppData\Roaming\WinSup\client32.exe
    MD5

    f76954b68cc390f8009f1a052283a740

    SHA1

    3112a39aad950045d6422fb2abe98bed05931e6c

    SHA256

    63315df7981130853d75dc753e5776bdf371811bcfce351557c1e45afdd1ebfb

    SHA512

    d3aea0867b488161f62e43e7c250ad3917713b8b183139fb6e06c71594fb0cec769e1494b7cc257117992ae4aa891e056f99c25431ae19f032b1ba779051a880

  • C:\Users\Admin\AppData\Roaming\WinSup\client32.ini
    MD5

    a92b98b93eb9300863341b02a9c10b86

    SHA1

    73df28c26d7dfa9b663afbe556b5c318a28b474d

    SHA256

    2bbbfcbc30c0bb04fa94a9dbdc842ec7c9e6f5fee0bdbe22776460496cfc13bd

    SHA512

    82f18a84babb91cf4aa9db27972a2ad6be1f33cd687499e4de76bd264f0ad1fe6df8fa216f9328fd33ad0ad558516638b9c2f515ec4c7c88c642cd6e53f0a198

  • C:\Users\Admin\AppData\Roaming\WinSup\pcicapi.dll
    MD5

    dcde2248d19c778a41aa165866dd52d0

    SHA1

    7ec84be84fe23f0b0093b647538737e1f19ebb03

    SHA256

    9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917

    SHA512

    c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

  • C:\Users\Admin\AppData\Roaming\WinSup\pcichek.dll
    MD5

    a0b9388c5f18e27266a31f8c5765b263

    SHA1

    906f7e94f841d464d4da144f7c858fa2160e36db

    SHA256

    313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a

    SHA512

    6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

  • \Users\Admin\AppData\Roaming\WinSup\HTCTL32.DLL
    MD5

    2d3b207c8a48148296156e5725426c7f

    SHA1

    ad464eb7cf5c19c8a443ab5b590440b32dbc618f

    SHA256

    edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796

    SHA512

    55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

  • \Users\Admin\AppData\Roaming\WinSup\PCICHEK.DLL
    MD5

    a0b9388c5f18e27266a31f8c5765b263

    SHA1

    906f7e94f841d464d4da144f7c858fa2160e36db

    SHA256

    313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a

    SHA512

    6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

  • \Users\Admin\AppData\Roaming\WinSup\PCICL32.DLL
    MD5

    00587238d16012152c2e951a087f2cc9

    SHA1

    c4e27a43075ce993ff6bb033360af386b2fc58ff

    SHA256

    63aa18c32af7144156e7ee2d5ba0fa4f5872a7deb56894f6f96505cbc9afe6f8

    SHA512

    637950a1f78d3f3d02c30a49a16e91cf3dfccc59104041876789bd7fdf9224d187209547766b91404c67319e13d1606da7cec397315495962cbf3e2ccd5f1226

  • \Users\Admin\AppData\Roaming\WinSup\TCCTL32.DLL
    MD5

    eab603d12705752e3d268d86dff74ed4

    SHA1

    01873977c871d3346d795cf7e3888685de9f0b16

    SHA256

    6795d760ce7a955df6c2f5a062e296128efdb8c908908eda4d666926980447ea

    SHA512

    77de0d9c93ccba967db70b280a85a770b3d8bea3b707b1abb037b2826b48898fec87924e1a6cce218c43478e5209e9eb9781051b4c3b450bea3cd27dbd32c7f3

  • \Users\Admin\AppData\Roaming\WinSup\msvcr100.dll
    MD5

    0e37fbfa79d349d672456923ec5fbbe3

    SHA1

    4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

    SHA256

    8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

    SHA512

    2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

  • \Users\Admin\AppData\Roaming\WinSup\pcicapi.dll
    MD5

    dcde2248d19c778a41aa165866dd52d0

    SHA1

    7ec84be84fe23f0b0093b647538737e1f19ebb03

    SHA256

    9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917

    SHA512

    c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

  • memory/508-145-0x0000000000000000-mapping.dmp
  • memory/808-148-0x0000000000000000-mapping.dmp
  • memory/4064-133-0x0000000000BF2000-0x0000000000BF3000-memory.dmp
    Filesize

    4KB

  • memory/4064-118-0x0000000000000000-mapping.dmp
  • memory/4064-143-0x0000000007AC0000-0x0000000007AC1000-memory.dmp
    Filesize

    4KB

  • memory/4064-142-0x0000000007360000-0x0000000007361000-memory.dmp
    Filesize

    4KB

  • memory/4064-141-0x00000000072C0000-0x00000000072C1000-memory.dmp
    Filesize

    4KB

  • memory/4064-140-0x0000000006CB0000-0x0000000006CB1000-memory.dmp
    Filesize

    4KB

  • memory/4064-139-0x0000000006C00000-0x0000000006C01000-memory.dmp
    Filesize

    4KB

  • memory/4064-138-0x0000000006B70000-0x0000000006B71000-memory.dmp
    Filesize

    4KB

  • memory/4064-137-0x0000000005840000-0x0000000005841000-memory.dmp
    Filesize

    4KB

  • memory/4064-136-0x00000000057C0000-0x00000000057C1000-memory.dmp
    Filesize

    4KB

  • memory/4064-135-0x0000000000BF4000-0x0000000000BF5000-memory.dmp
    Filesize

    4KB

  • memory/4064-144-0x0000000007C90000-0x0000000007C91000-memory.dmp
    Filesize

    4KB

  • memory/4064-134-0x0000000000BF3000-0x0000000000BF4000-memory.dmp
    Filesize

    4KB

  • memory/4064-132-0x0000000000BF0000-0x0000000000BF1000-memory.dmp
    Filesize

    4KB

  • memory/4064-131-0x00000000056B0000-0x00000000056B1000-memory.dmp
    Filesize

    4KB

  • memory/4064-130-0x0000000005680000-0x0000000005681000-memory.dmp
    Filesize

    4KB

  • memory/4064-129-0x0000000005000000-0x0000000005001000-memory.dmp
    Filesize

    4KB

  • memory/4064-127-0x0000000002860000-0x0000000002879000-memory.dmp
    Filesize

    100KB

  • memory/4064-121-0x0000000000130000-0x000000000015E000-memory.dmp
    Filesize

    184KB

  • memory/4328-166-0x0000000000000000-mapping.dmp
  • memory/4612-165-0x0000000000000000-mapping.dmp