Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-09-2024 01:00

General

  • Target

    Ref_50102_607.7z.exe

  • Size

    639KB

  • MD5

    945fbe2f3b89dccd586062c07a532d55

  • SHA1

    b3c31488bc86630267881bb0675a4c8baac65bf6

  • SHA256

    245ee760d71dc45da0f6df037798b8b5beaa01850483a35cc340a916cce946af

  • SHA512

    10bed2ba141cd01359d95e92fde52dc91d9fb8b5e1108d6faac6cacfbc181788cbda4fad7b7eac25c13812f41e433b237c1216387d687c35465c0b7cba858e5a

  • SSDEEP

    12288:58a9pdkUE0oNHfEGIU+u5siT90lyjTo+AUFyD0/5X9zGbnBk7wakR:58andkt3NMG9l5sk90ITYY/Otqw5

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.fosna.net
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    (=8fPSH$KO_!

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.fosna.net
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    (=8fPSH$KO_!

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ref_50102_607.7z.exe
    "C:\Users\Admin\AppData\Local\Temp\Ref_50102_607.7z.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1512
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Ref_50102_607.7z.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4152
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XtBOrehPamR.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5076
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XtBOrehPamR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD428.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4808
    • C:\Users\Admin\AppData\Local\Temp\Ref_50102_607.7z.exe
      "C:\Users\Admin\AppData\Local\Temp\Ref_50102_607.7z.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:884

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Ref_50102_607.7z.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    3d086a433708053f9bf9523e1d87a4e8

    SHA1

    b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

    SHA256

    6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

    SHA512

    931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    511da8a95bde3852d6427e4427ac2b38

    SHA1

    b96d3e1f276ec2a0226042fd5e2331e3806f455b

    SHA256

    2102f7fc23d60a19aa03639c67da7f6ca2abe077da66851ce5b62229cfa590d4

    SHA512

    96aa0332077b27f310a43f4c101c5ceaff7837ff9fcd7dcf44d210c0a69bdf08e3e13c07e29ccd2be15b3da6f13861865c575379cd0af8e95ca8d7f1fff2c8fd

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_c1wjqx5s.zaf.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpD428.tmp

    Filesize

    1KB

    MD5

    7d7e272056af3052c93a6ac3933009ba

    SHA1

    9dadd82b0e14b90219f44463f99f4e652fd9eef0

    SHA256

    26685409911484ddc581d89f945294c02da2723a088130334915d923ba05aa0e

    SHA512

    993f104e60827ac453b63ca2361237e6c6043183456f04f9c2affab7f4cb8c9b2cd7ec19021afad91158beefe28054f3c86be7bb69b5cb6568ce6c8b1b11ef1f

  • memory/884-91-0x0000000006F30000-0x0000000006F80000-memory.dmp

    Filesize

    320KB

  • memory/884-36-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1512-5-0x0000000005050000-0x000000000505A000-memory.dmp

    Filesize

    40KB

  • memory/1512-8-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

    Filesize

    4KB

  • memory/1512-9-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1512-10-0x0000000006A60000-0x0000000006AE4000-memory.dmp

    Filesize

    528KB

  • memory/1512-11-0x00000000090D0000-0x000000000916C000-memory.dmp

    Filesize

    624KB

  • memory/1512-0-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

    Filesize

    4KB

  • memory/1512-7-0x0000000005700000-0x0000000005710000-memory.dmp

    Filesize

    64KB

  • memory/1512-6-0x0000000005640000-0x00000000056DA000-memory.dmp

    Filesize

    616KB

  • memory/1512-4-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1512-3-0x0000000005070000-0x0000000005102000-memory.dmp

    Filesize

    584KB

  • memory/1512-40-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1512-2-0x0000000005710000-0x0000000005CB4000-memory.dmp

    Filesize

    5.6MB

  • memory/1512-1-0x0000000000600000-0x00000000006A2000-memory.dmp

    Filesize

    648KB

  • memory/4152-16-0x0000000000AC0000-0x0000000000AF6000-memory.dmp

    Filesize

    216KB

  • memory/4152-82-0x0000000007250000-0x000000000726A000-memory.dmp

    Filesize

    104KB

  • memory/4152-34-0x00000000056F0000-0x0000000005756000-memory.dmp

    Filesize

    408KB

  • memory/4152-28-0x0000000004E30000-0x0000000004E52000-memory.dmp

    Filesize

    136KB

  • memory/4152-18-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4152-38-0x0000000005860000-0x0000000005BB4000-memory.dmp

    Filesize

    3.3MB

  • memory/4152-30-0x0000000005610000-0x0000000005676000-memory.dmp

    Filesize

    408KB

  • memory/4152-90-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4152-50-0x0000000005BF0000-0x0000000005C0E000-memory.dmp

    Filesize

    120KB

  • memory/4152-51-0x0000000005C30000-0x0000000005C7C000-memory.dmp

    Filesize

    304KB

  • memory/4152-52-0x0000000006190000-0x00000000061C2000-memory.dmp

    Filesize

    200KB

  • memory/4152-17-0x0000000004E70000-0x0000000005498000-memory.dmp

    Filesize

    6.2MB

  • memory/4152-53-0x00000000712A0000-0x00000000712EC000-memory.dmp

    Filesize

    304KB

  • memory/4152-19-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4152-74-0x0000000006E10000-0x0000000006EB3000-memory.dmp

    Filesize

    652KB

  • memory/4152-35-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4152-81-0x0000000007150000-0x0000000007164000-memory.dmp

    Filesize

    80KB

  • memory/4152-79-0x0000000007110000-0x0000000007121000-memory.dmp

    Filesize

    68KB

  • memory/4152-78-0x0000000007190000-0x0000000007226000-memory.dmp

    Filesize

    600KB

  • memory/5076-77-0x0000000007370000-0x000000000737A000-memory.dmp

    Filesize

    40KB

  • memory/5076-80-0x0000000007530000-0x000000000753E000-memory.dmp

    Filesize

    56KB

  • memory/5076-76-0x00000000066A0000-0x00000000066BA000-memory.dmp

    Filesize

    104KB

  • memory/5076-75-0x00000000079B0000-0x000000000802A000-memory.dmp

    Filesize

    6.5MB

  • memory/5076-83-0x0000000007620000-0x0000000007628000-memory.dmp

    Filesize

    32KB

  • memory/5076-73-0x00000000065D0000-0x00000000065EE000-memory.dmp

    Filesize

    120KB

  • memory/5076-54-0x00000000712A0000-0x00000000712EC000-memory.dmp

    Filesize

    304KB

  • memory/5076-22-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/5076-89-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/5076-21-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB