c277827a2afe5d23f11448d75291342c.exe

General
Target

c277827a2afe5d23f11448d75291342c.exe

Filesize

513KB

Completed

27-07-2021 16:28

Score
10 /10
MD5

c277827a2afe5d23f11448d75291342c

SHA1

84528fcebd7c5dd3b118dad30bbb3ee30566f98e

SHA256

be98f101070d1ef350f5d1768e640f5f23b047f890fde74495e49b9f6fa4d00b

Malware Config

Extracted

Family agenttesla
C2

https://api.telegram.org/bot1805574870:AAHXBVpTNJET3oRosoa2brFL9_G19NkXu8I/sendDocument

Signatures 10

Filter: none

Collection
Credential Access
Defense Evasion
Persistence
  • AgentTesla

    Description

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

  • AgentTesla Payload

    Reported IOCs

    resourceyara_rule
    behavioral2/memory/3984-128-0x0000000000400000-0x000000000043C000-memory.dmpfamily_agenttesla
    behavioral2/memory/3984-129-0x000000000043773E-mapping.dmpfamily_agenttesla
    behavioral2/memory/3984-135-0x00000000055D0000-0x0000000005ACE000-memory.dmpfamily_agenttesla
  • Reads data files stored by FTP clients

    Description

    Tries to access configuration files associated with programs like FileZilla.

    TTPs

    Data from Local SystemCredentials in Files
  • Reads user/profile data of local email clients

    Description

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

    TTPs

    Data from Local SystemCredentials in Files
  • Reads user/profile data of web browsers

    Description

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

    TTPs

    Data from Local SystemCredentials in Files
  • Adds Run key to start application
    c277827a2afe5d23f11448d75291342c.exe

    TTPs

    Registry Run Keys / Startup FolderModify Registry

    Reported IOCs

    descriptioniocprocess
    Set value (str)\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\service.exe = "C:\\Users\\Admin\\AppData\\Roaming\\service.exe\\service.exe.exe"c277827a2afe5d23f11448d75291342c.exe
  • Suspicious use of SetThreadContext
    c277827a2afe5d23f11448d75291342c.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 4648 set thread context of 39844648c277827a2afe5d23f11448d75291342c.exec277827a2afe5d23f11448d75291342c.exe
  • Suspicious behavior: EnumeratesProcesses
    c277827a2afe5d23f11448d75291342c.exec277827a2afe5d23f11448d75291342c.exe

    Reported IOCs

    pidprocess
    4648c277827a2afe5d23f11448d75291342c.exe
    4648c277827a2afe5d23f11448d75291342c.exe
    3984c277827a2afe5d23f11448d75291342c.exe
    3984c277827a2afe5d23f11448d75291342c.exe
  • Suspicious use of AdjustPrivilegeToken
    c277827a2afe5d23f11448d75291342c.exec277827a2afe5d23f11448d75291342c.exe

    Reported IOCs

    descriptionpidprocess
    Token: SeDebugPrivilege4648c277827a2afe5d23f11448d75291342c.exe
    Token: SeDebugPrivilege3984c277827a2afe5d23f11448d75291342c.exe
  • Suspicious use of WriteProcessMemory
    c277827a2afe5d23f11448d75291342c.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 4648 wrote to memory of 39844648c277827a2afe5d23f11448d75291342c.exec277827a2afe5d23f11448d75291342c.exe
    PID 4648 wrote to memory of 39844648c277827a2afe5d23f11448d75291342c.exec277827a2afe5d23f11448d75291342c.exe
    PID 4648 wrote to memory of 39844648c277827a2afe5d23f11448d75291342c.exec277827a2afe5d23f11448d75291342c.exe
    PID 4648 wrote to memory of 39844648c277827a2afe5d23f11448d75291342c.exec277827a2afe5d23f11448d75291342c.exe
    PID 4648 wrote to memory of 39844648c277827a2afe5d23f11448d75291342c.exec277827a2afe5d23f11448d75291342c.exe
    PID 4648 wrote to memory of 39844648c277827a2afe5d23f11448d75291342c.exec277827a2afe5d23f11448d75291342c.exe
    PID 4648 wrote to memory of 39844648c277827a2afe5d23f11448d75291342c.exec277827a2afe5d23f11448d75291342c.exe
    PID 4648 wrote to memory of 39844648c277827a2afe5d23f11448d75291342c.exec277827a2afe5d23f11448d75291342c.exe
Processes 2
  • C:\Users\Admin\AppData\Local\Temp\c277827a2afe5d23f11448d75291342c.exe
    "C:\Users\Admin\AppData\Local\Temp\c277827a2afe5d23f11448d75291342c.exe"
    Suspicious use of SetThreadContext
    Suspicious behavior: EnumeratesProcesses
    Suspicious use of AdjustPrivilegeToken
    Suspicious use of WriteProcessMemory
    PID:4648
    • C:\Users\Admin\AppData\Local\Temp\c277827a2afe5d23f11448d75291342c.exe
      C:\Users\Admin\AppData\Local\Temp\c277827a2afe5d23f11448d75291342c.exe
      Adds Run key to start application
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3984
Network
MITRE ATT&CK Matrix
Command and Control
    Credential Access
    Defense Evasion
    Discovery
      Execution
        Exfiltration
          Impact
            Initial Access
              Lateral Movement
                Privilege Escalation
                  Replay Monitor
                  00:00 00:00
                  Downloads
                  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\c277827a2afe5d23f11448d75291342c.exe.log

                    MD5

                    9e7845217df4a635ec4341c3d52ed685

                    SHA1

                    d65cb39d37392975b038ce503a585adadb805da5

                    SHA256

                    d60e596ed3d5c13dc9f1660e6d870d99487e1383891437645c4562a9ecaa8c9b

                    SHA512

                    307c3b4d4f2655bdeb177e7b9c981ca27513618903f02c120caa755c9da5a8dd03ebab660b56108a680720a97c1e9596692490aede18cc4bd77b9fc3d8e68aa1

                  • memory/3984-137-0x0000000006330000-0x0000000006331000-memory.dmp

                  • memory/3984-136-0x0000000005A70000-0x0000000005A71000-memory.dmp

                  • memory/3984-135-0x00000000055D0000-0x0000000005ACE000-memory.dmp

                  • memory/3984-134-0x00000000057A0000-0x00000000057A1000-memory.dmp

                  • memory/3984-129-0x000000000043773E-mapping.dmp

                  • memory/3984-128-0x0000000000400000-0x000000000043C000-memory.dmp

                  • memory/4648-127-0x0000000008B60000-0x0000000008BD5000-memory.dmp

                  • memory/4648-122-0x00000000069D0000-0x0000000006A29000-memory.dmp

                  • memory/4648-120-0x0000000004ED0000-0x00000000053CE000-memory.dmp

                  • memory/4648-121-0x0000000004ED0000-0x00000000053CE000-memory.dmp

                  • memory/4648-119-0x0000000004F50000-0x0000000004F51000-memory.dmp

                  • memory/4648-118-0x0000000004ED0000-0x00000000053CE000-memory.dmp

                  • memory/4648-117-0x0000000004F70000-0x0000000004F71000-memory.dmp

                  • memory/4648-116-0x00000000053D0000-0x00000000053D1000-memory.dmp

                  • memory/4648-114-0x0000000000690000-0x0000000000691000-memory.dmp