Halkbank_Ekstre_20210113_162325_384771.exe

General
Target

Halkbank_Ekstre_20210113_162325_384771.exe

Filesize

505KB

Completed

13-01-2021 20:15

Score
10 /10
MD5

8bdf3d3cb7c7680df5b8d6385dc5db82

SHA1

442eaa27d23dc72fd96c9d2d984068669afbeb5d

SHA256

a3c564db9537f84073828e42af85c0558e763cb211e80bd4653e429ecb62ce8b

Malware Config

Extracted

Family agenttesla
Credentials

Protocol: smtp

Host: mail.ceotech.com.tr

Port: 587

Username: muhasebe@ceotech.com.tr

Password: Ceo.tech.123

Signatures 10

Filter: none

Collection
Credential Access
  • AgentTesla

    Description

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

  • AgentTesla Payload

    Reported IOCs

    resourceyara_rule
    behavioral2/memory/3208-3-0x0000000000400000-0x000000000044C000-memory.dmpfamily_agenttesla
    behavioral2/memory/3208-4-0x000000000040188B-mapping.dmpfamily_agenttesla
    behavioral2/memory/744-5-0x000000001BFA0000-0x000000001BFEC000-memory.dmpfamily_agenttesla
    behavioral2/memory/3208-6-0x0000000000400000-0x000000000044C000-memory.dmpfamily_agenttesla
    behavioral2/memory/3208-8-0x0000000002E80000-0x0000000002EB6000-memory.dmpfamily_agenttesla
  • Reads data files stored by FTP clients

    Description

    Tries to access configuration files associated with programs like FileZilla.

    Tags

    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.

    Tags

    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.

    Tags

    TTPs

    Data from Local SystemCredentials in Files
  • Suspicious use of SetThreadContext
    Halkbank_Ekstre_20210113_162325_384771.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 744 set thread context of 3208744Halkbank_Ekstre_20210113_162325_384771.exeHalkbank_Ekstre_20210113_162325_384771.exe
  • Suspicious behavior: EnumeratesProcesses
    Halkbank_Ekstre_20210113_162325_384771.exe

    Reported IOCs

    pidprocess
    3208Halkbank_Ekstre_20210113_162325_384771.exe
    3208Halkbank_Ekstre_20210113_162325_384771.exe
  • Suspicious behavior: MapViewOfSection
    Halkbank_Ekstre_20210113_162325_384771.exeHalkbank_Ekstre_20210113_162325_384771.exe

    Reported IOCs

    pidprocess
    4768Halkbank_Ekstre_20210113_162325_384771.exe
    744Halkbank_Ekstre_20210113_162325_384771.exe
  • Suspicious use of AdjustPrivilegeToken
    Halkbank_Ekstre_20210113_162325_384771.exe

    Reported IOCs

    descriptionpidprocess
    Token: SeDebugPrivilege3208Halkbank_Ekstre_20210113_162325_384771.exe
  • Suspicious use of WriteProcessMemory
    Halkbank_Ekstre_20210113_162325_384771.exeHalkbank_Ekstre_20210113_162325_384771.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 4768 wrote to memory of 4404768Halkbank_Ekstre_20210113_162325_384771.exeHalkbank_Ekstre_20210113_162325_384771.exe
    PID 4768 wrote to memory of 4404768Halkbank_Ekstre_20210113_162325_384771.exeHalkbank_Ekstre_20210113_162325_384771.exe
    PID 4768 wrote to memory of 4404768Halkbank_Ekstre_20210113_162325_384771.exeHalkbank_Ekstre_20210113_162325_384771.exe
    PID 4768 wrote to memory of 7444768Halkbank_Ekstre_20210113_162325_384771.exeHalkbank_Ekstre_20210113_162325_384771.exe
    PID 4768 wrote to memory of 7444768Halkbank_Ekstre_20210113_162325_384771.exeHalkbank_Ekstre_20210113_162325_384771.exe
    PID 4768 wrote to memory of 7444768Halkbank_Ekstre_20210113_162325_384771.exeHalkbank_Ekstre_20210113_162325_384771.exe
    PID 744 wrote to memory of 3208744Halkbank_Ekstre_20210113_162325_384771.exeHalkbank_Ekstre_20210113_162325_384771.exe
    PID 744 wrote to memory of 3208744Halkbank_Ekstre_20210113_162325_384771.exeHalkbank_Ekstre_20210113_162325_384771.exe
    PID 744 wrote to memory of 3208744Halkbank_Ekstre_20210113_162325_384771.exeHalkbank_Ekstre_20210113_162325_384771.exe
    PID 744 wrote to memory of 3208744Halkbank_Ekstre_20210113_162325_384771.exeHalkbank_Ekstre_20210113_162325_384771.exe
Processes 4
  • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210113_162325_384771.exe
    "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210113_162325_384771.exe"
    Suspicious behavior: MapViewOfSection
    Suspicious use of WriteProcessMemory
    PID:4768
    • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210113_162325_384771.exe
      "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210113_162325_384771.exe"
      PID:440
    • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210113_162325_384771.exe
      "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210113_162325_384771.exe"
      Suspicious use of SetThreadContext
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:744
      • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210113_162325_384771.exe
        "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210113_162325_384771.exe"
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        PID:3208
Network
MITRE ATT&CK Matrix
Command and Control
    Credential Access
    Defense Evasion
      Discovery
        Execution
          Exfiltration
            Impact
              Initial Access
                Lateral Movement
                  Persistence
                    Privilege Escalation
                      Replay Monitor
                      00:00 00:00
                      Downloads
                      • memory/744-5-0x000000001BFA0000-0x000000001BFEC000-memory.dmp

                      • memory/744-2-0x0000000000000000-mapping.dmp

                      • memory/3208-8-0x0000000002E80000-0x0000000002EB6000-memory.dmp

                      • memory/3208-4-0x000000000040188B-mapping.dmp

                      • memory/3208-6-0x0000000000400000-0x000000000044C000-memory.dmp

                      • memory/3208-7-0x0000000072BA0000-0x000000007328E000-memory.dmp

                      • memory/3208-3-0x0000000000400000-0x000000000044C000-memory.dmp

                      • memory/3208-10-0x0000000005A90000-0x0000000005A91000-memory.dmp

                      • memory/3208-11-0x0000000005760000-0x0000000005761000-memory.dmp

                      • memory/3208-12-0x0000000006490000-0x0000000006491000-memory.dmp

                      • memory/3208-13-0x0000000006530000-0x0000000006531000-memory.dmp

                      • memory/3208-14-0x00000000068A0000-0x00000000068A1000-memory.dmp

                      • memory/3208-15-0x00000000065A0000-0x00000000065A1000-memory.dmp