Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05-03-2024 04:46

General

  • Target

    b3d0b8c065ad75dfd646829bc7c87735.exe

  • Size

    67KB

  • MD5

    b3d0b8c065ad75dfd646829bc7c87735

  • SHA1

    629655f03b356ad46ae106855eb004c7be7098c0

  • SHA256

    61560f470822a249950e3d35574aae0ee9c93da31c1fd6f001c0cec97069a4fb

  • SHA512

    81539089391fb7aad33450a37ab57ec4a13c544a70ead868bc89f4e5d3d81dd948b4ea82c9ba1a780e03dfee608839b6acf2868f0ff6c0fc0fd2ef2fd6cf766e

  • SSDEEP

    768:Xb5fzfrnTjUzYZzZbvINP2hTlCio1cIBB6zTTCkvbIcwlwLHT1C4kh3ZsXULI9eN:L5bTnBIrio1cKeTDvbIcwqdUEPR+pR

Malware Config

Signatures

  • A310logger

    A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.

  • A310logger Executable 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Looks up geolocation information via web service

    Uses a legitimate geolocation service to find the infected system's geolocation info.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b3d0b8c065ad75dfd646829bc7c87735.exe
    "C:\Users\Admin\AppData\Local\Temp\b3d0b8c065ad75dfd646829bc7c87735.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:2016
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1996

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

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

    67KB

    MD5

    753df6889fd7410a2e9fe333da83a429

    SHA1

    3c425f16e8267186061dd48ac1c77c122962456e

    SHA256

    b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78

    SHA512

    9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444

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

    344B

    MD5

    6fcb2d959aef2a37cf5c66cc32973300

    SHA1

    f798614e5975befd9b67c9f0d1652625de144e43

    SHA256

    8b8ecdf4705bc8e4d7d1c080587175b43941f488056b02ff185d6f2ebbc32849

    SHA512

    acb4f4a9540f8d8b8139b1bb01f1042902d205a3042d1415c1ee0d5ffbf3df7172933ccb1e33c5934a4b7af5f4f2a258e0fe1fcc178eb5139cacef0a1c53960f

  • C:\Users\Admin\AppData\Local\Temp\Cab2889.tmp
    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar2A06.tmp
    Filesize

    175KB

    MD5

    dd73cead4b93366cf3465c8cd32e2796

    SHA1

    74546226dfe9ceb8184651e920d1dbfb432b314e

    SHA256

    a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

    SHA512

    ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
    Filesize

    20KB

    MD5

    1bad0cbd09b05a21157d8255dc801778

    SHA1

    ff284bba12f011b72e20d4c9537d6c455cdbf228

    SHA256

    218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9

    SHA512

    4fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533

  • memory/1996-75-0x000007FEF5A60000-0x000007FEF63FD000-memory.dmp
    Filesize

    9.6MB

  • memory/1996-76-0x0000000000C00000-0x0000000000C80000-memory.dmp
    Filesize

    512KB

  • memory/1996-77-0x000007FEF5A60000-0x000007FEF63FD000-memory.dmp
    Filesize

    9.6MB

  • memory/1996-80-0x000007FEF5A60000-0x000007FEF63FD000-memory.dmp
    Filesize

    9.6MB

  • memory/2016-3-0x0000000000A80000-0x0000000000B00000-memory.dmp
    Filesize

    512KB

  • memory/2016-2-0x000007FEF5A60000-0x000007FEF63FD000-memory.dmp
    Filesize

    9.6MB

  • memory/2016-1-0x0000000000A80000-0x0000000000B00000-memory.dmp
    Filesize

    512KB

  • memory/2016-0-0x000007FEF5A60000-0x000007FEF63FD000-memory.dmp
    Filesize

    9.6MB

  • memory/2016-81-0x000007FEF5A60000-0x000007FEF63FD000-memory.dmp
    Filesize

    9.6MB