Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-10-2024 12:47

General

  • Target

    111.vbe

  • Size

    11KB

  • MD5

    f4f90d06813ebae0cf591acfc33a9b72

  • SHA1

    4f9563282b62e08ac9e31856c8394ffa474f6c15

  • SHA256

    5e8f82fa0592f63a811dea02c5875cc502ff322bbdf855de1b71e2399ec8f029

  • SHA512

    42b643ead7537c5a7ef63fde8eed3d75211cd0f39bdcefd79afd0345f00c2627f0a6f8120a1c1be1c947ed0e1c0ee8970d688221ff9f40572d3c6806b7b806b5

  • SSDEEP

    192:kVPCg3XXH2AYKtbXq1qFqpSJ7sWfqH2hmDaOdC8NhuOzWNEK:cH3XXH2aA1qFkiQWfq2mDLdCpxF

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Blocklisted process makes network request 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops desktop.ini file(s) 7 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 2 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 6 IoCs

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

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Modifies registry class 2 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\111.vbe"
    1⤵
    • Blocklisted process makes network request
    PID:4412
  • C:\Windows\System32\WScript.exe
    C:\Windows\System32\WScript.exe "C:\Users\Admin\AppData\Roaming\QIbTTutRfdLJtpX.vbs"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe"
      2⤵
      • Drops file in System32 directory
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4380
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4960
      • C:\Windows\system32\wermgr.exe
        "C:\Windows\system32\wermgr.exe" "-outproc" "0" "4380" "2748" "2684" "2752" "0" "0" "2756" "0" "0" "0" "0" "0"
        3⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        PID:924
    • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe"
      2⤵
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:32
      • C:\Windows\system32\wermgr.exe
        "C:\Windows\system32\wermgr.exe" "-outproc" "0" "32" "2688" "2624" "2692" "0" "0" "2696" "0" "0" "0" "0" "0"
        3⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        PID:2264
  • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
    "C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /Play -Embedding
    1⤵
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2852
    • C:\Windows\SysWOW64\unregmp2.exe
      "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:516
      • C:\Windows\system32\unregmp2.exe
        "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
        3⤵
        • Enumerates connected drives
        • Suspicious use of AdjustPrivilegeToken
        PID:2860
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
    1⤵
    • Drops file in Windows directory
    PID:3536

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

    Filesize

    3KB

    MD5

    3f01549ee3e4c18244797530b588dad9

    SHA1

    3e87863fc06995fe4b741357c68931221d6cc0b9

    SHA256

    36b51e575810b6af6fc5e778ce0f228bc7797cd3224839b00829ca166fa13f9a

    SHA512

    73843215228865a4186ac3709bf2896f0f68da0ba3601cc20226203dd429a2ad9817b904a45f6b0456b8be68deebf3b011742a923ce4a77c0c6f3a155522ab50

  • C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb

    Filesize

    64KB

    MD5

    987a07b978cfe12e4ce45e513ef86619

    SHA1

    22eec9a9b2e83ad33bedc59e3205f86590b7d40c

    SHA256

    f1a4a978ce1c4731df1594043135cf58d084fdf129dd1c8e4507c9e06eac5ea8

    SHA512

    39b86540e4d35c84609ef66537b5aa02058e3d4293f902127c7d4eac8ffc65920cb5c69a77552fc085687eed66e38367f83c177046d0ecb8e6d135463cc142aa

  • C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb

    Filesize

    1024KB

    MD5

    c7e74ff144c55f2b021dcfb217508453

    SHA1

    34df62dbc9d89432a708636648b96fa517331882

    SHA256

    73587d34368cde7cedd819c6257885934db526c4a8fd1f8b3f9e85b4dedcbceb

    SHA512

    5eeeaa2e1b592593d9ca43ebe1f2edb24dea60dd83a8ca618e541c5571947adba2857712b1e8f7e6eebbbd6142f5fb13b42cc67c09a6edbc0f7835b9e3cc60da

  • C:\Users\Admin\AppData\Local\Microsoft\Media Player\LocalMLS_3.wmdb

    Filesize

    68KB

    MD5

    ef9905684d81712e0c6e5e0b1742f4ad

    SHA1

    5a1977b8e08b944aa1b3375afbfad8738f675a2b

    SHA256

    5d9ce21123a67694320ab80f45fb2e6179a7d31d6e1e8296fd35d3a06f507b26

    SHA512

    98970cf384fae387e3bda3e0996e5349e721badf70c36bdb917023fd0c8821ce5ec9e1553198ede93fad78c0089e81217fb8ca6630ba60ccf8e153aaacc0d8ec

  • C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.DTD

    Filesize

    498B

    MD5

    90be2701c8112bebc6bd58a7de19846e

    SHA1

    a95be407036982392e2e684fb9ff6602ecad6f1e

    SHA256

    644fbcdc20086e16d57f31c5bad98be68d02b1c061938d2f5f91cbe88c871fbf

    SHA512

    d618b473b68b48d746c912ac5fc06c73b047bd35a44a6efc7a859fe1162d68015cf69da41a5db504dcbc4928e360c095b32a3b7792fcc6a38072e1ebd12e7cbe

  • C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML

    Filesize

    9KB

    MD5

    5433eab10c6b5c6d55b7cbd302426a39

    SHA1

    c5b1604b3350dab290d081eecd5389a895c58de5

    SHA256

    23dbf7014e99e93af5f2760f18ee1370274f06a453145c8d539b66d798dad131

    SHA512

    207b40d6bec65ab147f963a5f42263ae5bf39857987b439a4fa1647bf9b40e99cdc43ff68b7e2463aa9a948284126ac3c9c7af8350c91134b36d8b1a9c61fd34

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache

    Filesize

    53KB

    MD5

    a26df49623eff12a70a93f649776dab7

    SHA1

    efb53bd0df3ac34bd119adf8788127ad57e53803

    SHA256

    4ebde1c12625cb55034d47e5169f709b0bd02a8caa76b5b9854efad7f4710245

    SHA512

    e5f9b8645fb2a50763fcbffe877ca03e9cadf099fe2d510b74bfa9ff18d0a6563d11160e00f495eeefebde63450d0ade8d6b6a824e68bd8a59e1971dc842709c

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_s2tg0pke.tqp.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\wmsetup.log

    Filesize

    1KB

    MD5

    2af2268182be25464a4c09d8fd1db10f

    SHA1

    21ab1c19dc20d1ed19d4209adda79e0094338998

    SHA256

    31864a96dad40755f3da3af111e97adb95021e5a5060e1c039f752dec9537ee1

    SHA512

    ce6eafef1240fe12cda9d06b8385f969038d4bd2f1c3234473e1460942b63eea9df9ea827dd3c37e4202a606bebaae9032859376407f87e52c7aa8e475544c90

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

    Filesize

    6KB

    MD5

    cf148d06cca28e4b46341fc7304d8044

    SHA1

    d0f6782a35739c32d5758670e1c6d9e56c881f84

    SHA256

    b61a0da9099429f1087d86b083b55a6769ab125ce32acc370dbe9a3cfaf596dc

    SHA512

    7c3408681abdee18ab1358e0b6b40b3f75b36cab18c53edeac0c5a035233cdc707167cabb41af120791eb64cf5ea544e010e92d78ea425d64922eb0066660581

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

    Filesize

    6KB

    MD5

    cd2253494f9eca2785c4ed3e59de2a25

    SHA1

    9e84dced914ed1a6e1d9cd972d88185d51067267

    SHA256

    4d20527b69f60255483712d42f1dc050ab5cb679abd1d054ccbb6ae3fdf96952

    SHA512

    85a18164867a62d9538c5a724d3ac38348df1cb3de212a0bdcc7d5007d3184a960f9c22955003be2f9d35ba6d4c9229bed907ae77a03c42b98ebc25448a110c6

  • C:\Users\Admin\AppData\Roaming\QIbTTutRfdLJtpX.vbs

    Filesize

    2KB

    MD5

    b60eb1408d589af97d9046b0de991ed2

    SHA1

    35b90248cd3f3253fbfaf80209de49e0321a6df1

    SHA256

    c9979fa459b5b5478dbc5bddf16723808c6946a613267e3b4c4cdcebb3b6abaa

    SHA512

    09567b9c43443a9e44b90f7c5a33742a86ffd44fb9ab44e0dd6e6e0d096b06fcca130c6ac16ab200f32c07fa6e2fc0dad8c19802334ad9232f696cf59355dcf3

  • memory/2852-52-0x0000000006890000-0x00000000068A0000-memory.dmp

    Filesize

    64KB

  • memory/2852-49-0x0000000006890000-0x00000000068A0000-memory.dmp

    Filesize

    64KB

  • memory/2852-47-0x0000000006890000-0x00000000068A0000-memory.dmp

    Filesize

    64KB

  • memory/2852-48-0x0000000006890000-0x00000000068A0000-memory.dmp

    Filesize

    64KB

  • memory/2852-51-0x0000000006890000-0x00000000068A0000-memory.dmp

    Filesize

    64KB

  • memory/2852-53-0x0000000006890000-0x00000000068A0000-memory.dmp

    Filesize

    64KB

  • memory/2852-50-0x0000000006890000-0x00000000068A0000-memory.dmp

    Filesize

    64KB

  • memory/2852-45-0x0000000006890000-0x00000000068A0000-memory.dmp

    Filesize

    64KB

  • memory/2852-107-0x00000000047B0000-0x00000000047C0000-memory.dmp

    Filesize

    64KB

  • memory/4380-14-0x000001DAF2220000-0x000001DAF2264000-memory.dmp

    Filesize

    272KB

  • memory/4380-85-0x000001DAF2210000-0x000001DAF2218000-memory.dmp

    Filesize

    32KB

  • memory/4380-86-0x000001DAF2270000-0x000001DAF227C000-memory.dmp

    Filesize

    48KB

  • memory/4380-13-0x000001DAF1F70000-0x000001DAF1F92000-memory.dmp

    Filesize

    136KB

  • memory/4380-25-0x000001DAF4700000-0x000001DAF4776000-memory.dmp

    Filesize

    472KB

  • memory/4960-87-0x00000000011C0000-0x0000000001200000-memory.dmp

    Filesize

    256KB

  • memory/4960-101-0x0000000005CC0000-0x0000000006264000-memory.dmp

    Filesize

    5.6MB

  • memory/4960-106-0x0000000005810000-0x0000000005876000-memory.dmp

    Filesize

    408KB

  • memory/4960-115-0x0000000006C30000-0x0000000006C80000-memory.dmp

    Filesize

    320KB

  • memory/4960-116-0x0000000006D20000-0x0000000006DB2000-memory.dmp

    Filesize

    584KB

  • memory/4960-117-0x0000000006CA0000-0x0000000006CAA000-memory.dmp

    Filesize

    40KB