Analysis

  • max time kernel
    114s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/04/2024, 19:01

General

  • Target

    81b64ff8f989f5a498e306b5f6f08e92b1d2d0a3c4bfc73b464f257783152c83.exe

  • Size

    410KB

  • MD5

    1c9f7a7f37ed9143b8cbefe285b96419

  • SHA1

    8b5d5d4c508106c9958fb33116e8b4eac9e4df8a

  • SHA256

    81b64ff8f989f5a498e306b5f6f08e92b1d2d0a3c4bfc73b464f257783152c83

  • SHA512

    2f9372b254807e5798a2638dac2449f24eaae313cadc4db4ccf151ccba18a07b47d2320b7681d35dfe36d66ad548b270849823658b19620929055fe6eed85ce8

  • SSDEEP

    6144:6vZFT3XcbbLvNeULGRvdEvUkiHDdBonjSdwn6O9F2AiX:6vZFT3MvLH+GUB4jQwn6wF25X

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.209

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Signatures

  • Detect ZGRat V1 3 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\81b64ff8f989f5a498e306b5f6f08e92b1d2d0a3c4bfc73b464f257783152c83.exe
    "C:\Users\Admin\AppData\Local\Temp\81b64ff8f989f5a498e306b5f6f08e92b1d2d0a3c4bfc73b464f257783152c83.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4316
    • C:\Users\Admin\AppData\Local\Temp\u3bw.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3bw.0.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:492
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\AFIEGIECGC.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2704
        • C:\Users\Admin\AppData\Local\Temp\AFIEGIECGC.exe
          "C:\Users\Admin\AppData\Local\Temp\AFIEGIECGC.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:4412
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\AFIEGIECGC.exe
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1136
            • C:\Windows\SysWOW64\PING.EXE
              ping 2.2.2.2 -n 1 -w 3000
              6⤵
              • Runs ping.exe
              PID:4304
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 492 -s 2588
        3⤵
        • Program crash
        PID:1796
    • C:\Users\Admin\AppData\Local\Temp\u3bw.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3bw.1.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:260
      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
        "C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2032
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4316 -s 996
      2⤵
      • Program crash
      PID:1852
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4316 -ip 4316
    1⤵
      PID:2816
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=2296 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:3
      1⤵
        PID:3016
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 492 -ip 492
        1⤵
          PID:4784
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4004 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:8
          1⤵
            PID:3508

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\ProgramData\Are.docx

                  Filesize

                  11KB

                  MD5

                  a33e5b189842c5867f46566bdbf7a095

                  SHA1

                  e1c06359f6a76da90d19e8fd95e79c832edb3196

                  SHA256

                  5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

                  SHA512

                  f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

                • C:\ProgramData\mozglue.dll

                  Filesize

                  593KB

                  MD5

                  c8fd9be83bc728cc04beffafc2907fe9

                  SHA1

                  95ab9f701e0024cedfbd312bcfe4e726744c4f2e

                  SHA256

                  ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

                  SHA512

                  fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

                • C:\ProgramData\nss3.dll

                  Filesize

                  2.0MB

                  MD5

                  1cc453cdf74f31e4d913ff9c10acdde2

                  SHA1

                  6e85eae544d6e965f15fa5c39700fa7202f3aafe

                  SHA256

                  ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

                  SHA512

                  dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

                  Filesize

                  2B

                  MD5

                  d751713988987e9331980363e24189ce

                  SHA1

                  97d170e1550eee4afc0af065b78cda302a97674c

                  SHA256

                  4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

                  SHA512

                  b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

                  Filesize

                  40B

                  MD5

                  20d4b8fa017a12a108c87f540836e250

                  SHA1

                  1ac617fac131262b6d3ce1f52f5907e31d5f6f00

                  SHA256

                  6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

                  SHA512

                  507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

                • C:\Users\Admin\AppData\Local\Temp\AFIEGIECGC.exe

                  Filesize

                  106KB

                  MD5

                  fe380780b5c35bd6d54541791151c2be

                  SHA1

                  7fe3a583cf91474c733f85cebf3c857682e269e1

                  SHA256

                  b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53

                  SHA512

                  ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

                • C:\Users\Admin\AppData\Local\Temp\u3bw.0.exe

                  Filesize

                  289KB

                  MD5

                  2f7902850a9359afd396851d2c2dbc50

                  SHA1

                  cf5086651e1c04652f3188b555824688912b1ef3

                  SHA256

                  e477e93ca61273c874dfa631dd02bd08317b2b214472c7fcaedf5fccc1bf6cfa

                  SHA512

                  4c533195e8ec42ccc765bc536f5cf4440cf53484e543a0f5d563017949ee5f2b74304c0bf53f568dfa84c3be019963cf2fcf43e12c144d2b19fce269a704bf7c

                • C:\Users\Admin\AppData\Local\Temp\u3bw.1.exe

                  Filesize

                  4.6MB

                  MD5

                  397926927bca55be4a77839b1c44de6e

                  SHA1

                  e10f3434ef3021c399dbba047832f02b3c898dbd

                  SHA256

                  4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

                  SHA512

                  cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

                • memory/260-160-0x0000000000400000-0x00000000008AD000-memory.dmp

                  Filesize

                  4.7MB

                • memory/260-29-0x00000000028E0000-0x00000000028E1000-memory.dmp

                  Filesize

                  4KB

                • memory/260-138-0x0000000000400000-0x00000000008AD000-memory.dmp

                  Filesize

                  4.7MB

                • memory/260-164-0x0000000000400000-0x00000000008AD000-memory.dmp

                  Filesize

                  4.7MB

                • memory/492-14-0x0000000000A80000-0x0000000000B80000-memory.dmp

                  Filesize

                  1024KB

                • memory/492-30-0x0000000061E00000-0x0000000061EF3000-memory.dmp

                  Filesize

                  972KB

                • memory/492-16-0x0000000000400000-0x0000000000866000-memory.dmp

                  Filesize

                  4.4MB

                • memory/492-83-0x0000000000400000-0x0000000000866000-memory.dmp

                  Filesize

                  4.4MB

                • memory/492-157-0x0000000000400000-0x0000000000866000-memory.dmp

                  Filesize

                  4.4MB

                • memory/492-15-0x00000000008F0000-0x0000000000917000-memory.dmp

                  Filesize

                  156KB

                • memory/492-166-0x0000000000400000-0x0000000000866000-memory.dmp

                  Filesize

                  4.4MB

                • memory/2032-194-0x0000018BA78A0000-0x0000018BA78B0000-memory.dmp

                  Filesize

                  64KB

                • memory/2032-181-0x0000018BA7DE0000-0x0000018BA7E5A000-memory.dmp

                  Filesize

                  488KB

                • memory/2032-213-0x0000018BA78A0000-0x0000018BA78B0000-memory.dmp

                  Filesize

                  64KB

                • memory/2032-212-0x0000018BA78A0000-0x0000018BA78B0000-memory.dmp

                  Filesize

                  64KB

                • memory/2032-211-0x0000018BA78A0000-0x0000018BA78B0000-memory.dmp

                  Filesize

                  64KB

                • memory/2032-210-0x0000018BA78A0000-0x0000018BA78B0000-memory.dmp

                  Filesize

                  64KB

                • memory/2032-209-0x0000018BA78A0000-0x0000018BA78B0000-memory.dmp

                  Filesize

                  64KB

                • memory/2032-165-0x00007FFC211B0000-0x00007FFC21C71000-memory.dmp

                  Filesize

                  10.8MB

                • memory/2032-207-0x0000018BACAC0000-0x0000018BACADE000-memory.dmp

                  Filesize

                  120KB

                • memory/2032-206-0x0000018BACA90000-0x0000018BACAB2000-memory.dmp

                  Filesize

                  136KB

                • memory/2032-204-0x00007FFC211B0000-0x00007FFC21C71000-memory.dmp

                  Filesize

                  10.8MB

                • memory/2032-170-0x0000018B89970000-0x0000018B8D268000-memory.dmp

                  Filesize

                  57.0MB

                • memory/2032-171-0x0000018BA78A0000-0x0000018BA78B0000-memory.dmp

                  Filesize

                  64KB

                • memory/2032-172-0x0000018BA7B60000-0x0000018BA7C70000-memory.dmp

                  Filesize

                  1.1MB

                • memory/2032-174-0x0000018B8EF00000-0x0000018B8EF0C000-memory.dmp

                  Filesize

                  48KB

                • memory/2032-173-0x0000018B8EEE0000-0x0000018B8EEF0000-memory.dmp

                  Filesize

                  64KB

                • memory/2032-175-0x0000018B8EEF0000-0x0000018B8EF04000-memory.dmp

                  Filesize

                  80KB

                • memory/2032-176-0x0000018B8EF30000-0x0000018B8EF54000-memory.dmp

                  Filesize

                  144KB

                • memory/2032-178-0x0000018BA7880000-0x0000018BA788A000-memory.dmp

                  Filesize

                  40KB

                • memory/2032-180-0x0000018BA7DB0000-0x0000018BA7DDA000-memory.dmp

                  Filesize

                  168KB

                • memory/2032-179-0x0000018BA7AA0000-0x0000018BA7B52000-memory.dmp

                  Filesize

                  712KB

                • memory/2032-182-0x0000018BA7E60000-0x0000018BA7EC2000-memory.dmp

                  Filesize

                  392KB

                • memory/2032-183-0x0000018BA7F40000-0x0000018BA7FB6000-memory.dmp

                  Filesize

                  472KB

                • memory/2032-205-0x0000018BA78A0000-0x0000018BA78B0000-memory.dmp

                  Filesize

                  64KB

                • memory/2032-203-0x0000018BAC9F0000-0x0000018BAC9FC000-memory.dmp

                  Filesize

                  48KB

                • memory/2032-186-0x0000018B8EEC0000-0x0000018B8EECA000-memory.dmp

                  Filesize

                  40KB

                • memory/2032-190-0x0000018BA7FC0000-0x0000018BA82C0000-memory.dmp

                  Filesize

                  3.0MB

                • memory/2032-192-0x0000018BA78A0000-0x0000018BA78B0000-memory.dmp

                  Filesize

                  64KB

                • memory/2032-193-0x0000018BAC9A0000-0x0000018BAC9A8000-memory.dmp

                  Filesize

                  32KB

                • memory/2032-202-0x0000018BACA40000-0x0000018BACA90000-memory.dmp

                  Filesize

                  320KB

                • memory/2032-195-0x0000018BAC2E0000-0x0000018BAC318000-memory.dmp

                  Filesize

                  224KB

                • memory/2032-196-0x0000018BAC2B0000-0x0000018BAC2BE000-memory.dmp

                  Filesize

                  56KB

                • memory/2032-197-0x0000018BAC9C0000-0x0000018BAC9CA000-memory.dmp

                  Filesize

                  40KB

                • memory/2032-198-0x0000018BAC9D0000-0x0000018BAC9F2000-memory.dmp

                  Filesize

                  136KB

                • memory/2032-199-0x0000018BAD970000-0x0000018BADE98000-memory.dmp

                  Filesize

                  5.2MB

                • memory/4316-1-0x0000000002EF0000-0x0000000002FF0000-memory.dmp

                  Filesize

                  1024KB

                • memory/4316-86-0x0000000000400000-0x0000000002D65000-memory.dmp

                  Filesize

                  41.4MB

                • memory/4316-2-0x0000000002E70000-0x0000000002EDC000-memory.dmp

                  Filesize

                  432KB

                • memory/4316-3-0x0000000000400000-0x0000000002D65000-memory.dmp

                  Filesize

                  41.4MB

                • memory/4316-5-0x0000000000400000-0x0000000002D65000-memory.dmp

                  Filesize

                  41.4MB

                • memory/4316-17-0x0000000000400000-0x0000000002D65000-memory.dmp

                  Filesize

                  41.4MB

                • memory/4316-85-0x0000000002E70000-0x0000000002EDC000-memory.dmp

                  Filesize

                  432KB

                • memory/4316-84-0x0000000002EF0000-0x0000000002FF0000-memory.dmp

                  Filesize

                  1024KB

                • memory/4412-185-0x00000000717B0000-0x0000000071F60000-memory.dmp

                  Filesize

                  7.7MB

                • memory/4412-169-0x00000000717B0000-0x0000000071F60000-memory.dmp

                  Filesize

                  7.7MB

                • memory/4412-168-0x0000000000B50000-0x0000000000B70000-memory.dmp

                  Filesize

                  128KB