74fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c

General
Target

74fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c.exe

Filesize

1MB

Completed

26-01-2022 22:31

Score
10/10
MD5

2b2ec30a2bf1c7166055e754a04c6ecf

SHA1

c4d2b04eab134dd058994633765410d9aefbe837

SHA256

74fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c

Malware Config

Extracted

Family arkei
Botnet Default
C2

http://37.252.15.126/dhbUc2MgYS.php

Signatures 9

Filter: none

Collection
Credential Access
  • Arkei

    Description

    Arkei is an infostealer written in C++.

  • Arkei Stealer Payload

    Tags

    Reported IOCs

    resourceyara_rule
    behavioral1/memory/676-116-0x0000000000370000-0x000000000050D000-memory.dmpfamily_arkei
    behavioral1/memory/676-117-0x0000000000370000-0x000000000050D000-memory.dmpfamily_arkei
  • Downloads MZ/PE file
  • Loads dropped DLL
    74fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c.exe

    Reported IOCs

    pidprocess
    67674fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c.exe
    67674fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c.exe
    67674fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c.exe
  • 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
  • Suspicious use of NtSetInformationThreadHideFromDebugger
    74fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c.exe

    Reported IOCs

    pidprocess
    67674fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c.exe
  • Program crash
    WerFault.exe

    Reported IOCs

    pidpid_targetprocesstarget process
    2444676WerFault.exe74fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c.exe
  • Suspicious behavior: EnumeratesProcesses
    74fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c.exeWerFault.exe

    Reported IOCs

    pidprocess
    67674fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c.exe
    67674fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c.exe
    2444WerFault.exe
    2444WerFault.exe
    2444WerFault.exe
    2444WerFault.exe
    2444WerFault.exe
    2444WerFault.exe
    2444WerFault.exe
    2444WerFault.exe
    2444WerFault.exe
    2444WerFault.exe
    2444WerFault.exe
    2444WerFault.exe
  • Suspicious use of AdjustPrivilegeToken
    WerFault.exe

    Reported IOCs

    descriptionpidprocess
    Token: SeRestorePrivilege2444WerFault.exe
    Token: SeBackupPrivilege2444WerFault.exe
    Token: SeDebugPrivilege2444WerFault.exe
Processes 2
  • C:\Users\Admin\AppData\Local\Temp\74fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c.exe
    "C:\Users\Admin\AppData\Local\Temp\74fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c.exe"
    Loads dropped DLL
    Suspicious use of NtSetInformationThreadHideFromDebugger
    Suspicious behavior: EnumeratesProcesses
    PID:676
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 676 -s 1264
      Program crash
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2444
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
                      • \ProgramData\mozglue.dll

                        MD5

                        8f73c08a9660691143661bf7332c3c27

                        SHA1

                        37fa65dd737c50fda710fdbde89e51374d0c204a

                        SHA256

                        3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

                        SHA512

                        0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

                      • \ProgramData\nss3.dll

                        MD5

                        bfac4e3c5908856ba17d41edcd455a51

                        SHA1

                        8eec7e888767aa9e4cca8ff246eb2aacb9170428

                        SHA256

                        e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

                        SHA512

                        2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

                      • \ProgramData\sqlite3.dll

                        MD5

                        e477a96c8f2b18d6b5c27bde49c990bf

                        SHA1

                        e980c9bf41330d1e5bd04556db4646a0210f7409

                        SHA256

                        16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

                        SHA512

                        335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

                      • memory/676-118-0x0000000000AC0000-0x0000000000AC1000-memory.dmp

                      • memory/676-119-0x0000000076E40000-0x0000000077002000-memory.dmp

                      • memory/676-120-0x00000000027A0000-0x00000000027E6000-memory.dmp

                      • memory/676-115-0x0000000000370000-0x000000000050D000-memory.dmp

                      • memory/676-116-0x0000000000370000-0x000000000050D000-memory.dmp

                      • memory/676-117-0x0000000000370000-0x000000000050D000-memory.dmp