Resubmissions

10-10-2023 19:06

231010-xr48baaa72 7

10-10-2023 18:57

231010-xmdvkahh85 7

11-12-2020 07:11

201211-8rk4l8xrye 10

Analysis

  • max time kernel
    131s
  • max time network
    132s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    11-12-2020 07:11

General

  • Target

    107fe810309d392811fb898622aa607c.exe

  • Size

    265KB

  • MD5

    107fe810309d392811fb898622aa607c

  • SHA1

    da82f9894db9b0a9b3cc9565a0c71e3e851cf98b

  • SHA256

    d03c84a13b8e6274f7353fd98e35f73c194938b61690a9a8a83c594a40994dec

  • SHA512

    1def7eff04fac2e9ce8f8f54655ade9640dfe81d0bf957762d173b13ef5d6681ef212418f8fd0e72d0d40fa0d2b0e1c1a3f05805ab0009bf2db3f175cd3d7d84

Malware Config

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 8 IoCs
  • 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 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 55 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\107fe810309d392811fb898622aa607c.exe
    "C:\Users\Admin\AppData\Local\Temp\107fe810309d392811fb898622aa607c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:3636
    • C:\Users\Admin\AppData\Roaming\36B5.tmp.exe
      "C:\Users\Admin\AppData\Roaming\36B5.tmp.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3468
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2104
    • C:\Users\Admin\AppData\Roaming\3C25.tmp.exe
      "C:\Users\Admin\AppData\Roaming\3C25.tmp.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4072
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Roaming\3C25.tmp.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2820
        • C:\Windows\SysWOW64\timeout.exe
          timeout /T 10 /NOBREAK
          4⤵
          • Delays execution with timeout.exe
          PID:2764
    • C:\Users\Admin\AppData\Roaming\41C4.tmp.exe
      "C:\Users\Admin\AppData\Roaming\41C4.tmp.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1992
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe"
        3⤵
          PID:4020
      • C:\Users\Admin\AppData\Local\Temp\107fe810309d392811fb898622aa607c.exe
        "C:\Users\Admin\AppData\Local\Temp\107fe810309d392811fb898622aa607c.exe"
        2⤵
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        PID:2724
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c ping 127.0.0.1 && del "C:\Users\Admin\AppData\Local\Temp\107fe810309d392811fb898622aa607c.exe" >> NUL
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1456
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1
          3⤵
          • Runs ping.exe
          PID:1748

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\36B5.tmp.exe

      MD5

      8136f3858716a51ea30bdc0e3494ede4

      SHA1

      94af873f93855e04349d75e11318e2fe0c1545d4

      SHA256

      3655e959a10cd3469622c03016704389127c655113a01bb46302498418184a10

      SHA512

      c3e18d620ba8a99dbf4b7efe5114d67f458d533a67ec41f65017fb4622dbc530c588e6012216c72f8b4b7ef8b0e9135950efa6d76066cdc6dea6bb9bf484e952

    • C:\Users\Admin\AppData\Roaming\36B5.tmp.exe

      MD5

      8136f3858716a51ea30bdc0e3494ede4

      SHA1

      94af873f93855e04349d75e11318e2fe0c1545d4

      SHA256

      3655e959a10cd3469622c03016704389127c655113a01bb46302498418184a10

      SHA512

      c3e18d620ba8a99dbf4b7efe5114d67f458d533a67ec41f65017fb4622dbc530c588e6012216c72f8b4b7ef8b0e9135950efa6d76066cdc6dea6bb9bf484e952

    • C:\Users\Admin\AppData\Roaming\3C25.tmp.exe

      MD5

      451c01146bf6d0075d41ee9034f2059a

      SHA1

      54644c8488c37287e2e897c444a74e55f405ee22

      SHA256

      0fd1106af0b985ea7293672c9d0d900b2f32fb93645b6be04b3fc1e2521323be

      SHA512

      c6cc772ed60a6840f0a8caf89356bcc52997ae3979c471ccc9af0476a7fb2a7bc859b08389a55f43418e77d7d46fd2c95fc6fef8655940a5ab319170599b5570

    • C:\Users\Admin\AppData\Roaming\3C25.tmp.exe

      MD5

      451c01146bf6d0075d41ee9034f2059a

      SHA1

      54644c8488c37287e2e897c444a74e55f405ee22

      SHA256

      0fd1106af0b985ea7293672c9d0d900b2f32fb93645b6be04b3fc1e2521323be

      SHA512

      c6cc772ed60a6840f0a8caf89356bcc52997ae3979c471ccc9af0476a7fb2a7bc859b08389a55f43418e77d7d46fd2c95fc6fef8655940a5ab319170599b5570

    • C:\Users\Admin\AppData\Roaming\41C4.tmp.exe

      MD5

      a7ea20176e5493c4c6f7e936a9632271

      SHA1

      84a6bab3d9062618fe5088aaa4fe1b859f11032e

      SHA256

      e0cf9dcb6bf346e6de3a21923eb15312502dd81b1e85ac0ee84b1947e0c589f0

      SHA512

      483fdc74539bbf3af0541230abd1c3cbace8bd8362a89d0b298688f7b5fb6fb43e7394d694f16ec2c935b87091195138047fee453db5f1f235255d600c116d35

    • C:\Users\Admin\AppData\Roaming\41C4.tmp.exe

      MD5

      a7ea20176e5493c4c6f7e936a9632271

      SHA1

      84a6bab3d9062618fe5088aaa4fe1b859f11032e

      SHA256

      e0cf9dcb6bf346e6de3a21923eb15312502dd81b1e85ac0ee84b1947e0c589f0

      SHA512

      483fdc74539bbf3af0541230abd1c3cbace8bd8362a89d0b298688f7b5fb6fb43e7394d694f16ec2c935b87091195138047fee453db5f1f235255d600c116d35

    • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\freebl3.dll

      MD5

      60acd24430204ad2dc7f148b8cfe9bdc

      SHA1

      989f377b9117d7cb21cbe92a4117f88f9c7693d9

      SHA256

      9876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97

      SHA512

      626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01

    • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\freebl3.dll

      MD5

      60acd24430204ad2dc7f148b8cfe9bdc

      SHA1

      989f377b9117d7cb21cbe92a4117f88f9c7693d9

      SHA256

      9876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97

      SHA512

      626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01

    • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\freebl3.dll

      MD5

      60acd24430204ad2dc7f148b8cfe9bdc

      SHA1

      989f377b9117d7cb21cbe92a4117f88f9c7693d9

      SHA256

      9876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97

      SHA512

      626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01

    • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\mozglue.dll

      MD5

      eae9273f8cdcf9321c6c37c244773139

      SHA1

      8378e2a2f3635574c106eea8419b5eb00b8489b0

      SHA256

      a0c6630d4012ae0311ff40f4f06911bcf1a23f7a4762ce219b8dffa012d188cc

      SHA512

      06e43e484a89cea9ba9b9519828d38e7c64b040f44cdaeb321cbda574e7551b11fea139ce3538f387a0a39a3d8c4cba7f4cf03e4a3c98db85f8121c2212a9097

    • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\nss3.dll

      MD5

      02cc7b8ee30056d5912de54f1bdfc219

      SHA1

      a6923da95705fb81e368ae48f93d28522ef552fb

      SHA256

      1989526553fd1e1e49b0fea8036822ca062d3d39c4cab4a37846173d0f1753d5

      SHA512

      0d5dfcf4fb19b27246fa799e339d67cd1b494427783f379267fb2d10d615ffb734711bab2c515062c078f990a44a36f2d15859b1dacd4143dcc35b5c0cee0ef5

    • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\softokn3.dll

      MD5

      4e8df049f3459fa94ab6ad387f3561ac

      SHA1

      06ed392bc29ad9d5fc05ee254c2625fd65925114

      SHA256

      25a4dae37120426ab060ebb39b7030b3e7c1093cc34b0877f223b6843b651871

      SHA512

      3dd4a86f83465989b2b30c240a7307edd1b92d5c1d5c57d47eff287dc9daa7bace157017908d82e00be90f08ff5badb68019ffc9d881440229dcea5038f61cd6

    • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\softokn3.dll

      MD5

      4e8df049f3459fa94ab6ad387f3561ac

      SHA1

      06ed392bc29ad9d5fc05ee254c2625fd65925114

      SHA256

      25a4dae37120426ab060ebb39b7030b3e7c1093cc34b0877f223b6843b651871

      SHA512

      3dd4a86f83465989b2b30c240a7307edd1b92d5c1d5c57d47eff287dc9daa7bace157017908d82e00be90f08ff5badb68019ffc9d881440229dcea5038f61cd6

    • \Users\Admin\AppData\LocalLow\sqlite3.dll

      MD5

      f964811b68f9f1487c2b41e1aef576ce

      SHA1

      b423959793f14b1416bc3b7051bed58a1034025f

      SHA256

      83bc57dcf282264f2b00c21ce0339eac20fcb7401f7c5472c0cd0c014844e5f7

      SHA512

      565b1a7291c6fcb63205907fcd9e72fc2e11ca945afc4468c378edba882e2f314c2ac21a7263880ff7d4b84c2a1678024c1ac9971ac1c1de2bfa4248ec0f98c4

    • memory/1456-22-0x0000000000000000-mapping.dmp

    • memory/1748-29-0x0000000000000000-mapping.dmp

    • memory/1992-16-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

      Filesize

      4KB

    • memory/1992-31-0x0000000005520000-0x000000000553F000-memory.dmp

      Filesize

      124KB

    • memory/1992-60-0x00000000088E0000-0x00000000088E1000-memory.dmp

      Filesize

      4KB

    • memory/1992-59-0x0000000007EC0000-0x0000000007ECA000-memory.dmp

      Filesize

      40KB

    • memory/1992-12-0x0000000000000000-mapping.dmp

    • memory/1992-15-0x0000000072940000-0x000000007302E000-memory.dmp

      Filesize

      6.9MB

    • memory/1992-19-0x00000000055C0000-0x00000000055C1000-memory.dmp

      Filesize

      4KB

    • memory/1992-35-0x0000000007ED0000-0x0000000007ED1000-memory.dmp

      Filesize

      4KB

    • memory/1992-27-0x00000000054F0000-0x0000000005507000-memory.dmp

      Filesize

      92KB

    • memory/2104-30-0x00000000025A0000-0x00000000025C4000-memory.dmp

      Filesize

      144KB

    • memory/2104-52-0x0000000006F10000-0x0000000006F11000-memory.dmp

      Filesize

      4KB

    • memory/2104-23-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

    • memory/2104-32-0x0000000005320000-0x0000000005321000-memory.dmp

      Filesize

      4KB

    • memory/2104-34-0x0000000002900000-0x0000000002922000-memory.dmp

      Filesize

      136KB

    • memory/2104-28-0x0000000072940000-0x000000007302E000-memory.dmp

      Filesize

      6.9MB

    • memory/2104-36-0x0000000005E30000-0x0000000005E31000-memory.dmp

      Filesize

      4KB

    • memory/2104-37-0x0000000004E70000-0x0000000004E71000-memory.dmp

      Filesize

      4KB

    • memory/2104-38-0x0000000004E50000-0x0000000004E51000-memory.dmp

      Filesize

      4KB

    • memory/2104-39-0x0000000004EC0000-0x0000000004EC1000-memory.dmp

      Filesize

      4KB

    • memory/2104-26-0x0000000002600000-0x0000000002601000-memory.dmp

      Filesize

      4KB

    • memory/2104-41-0x0000000005150000-0x0000000005151000-memory.dmp

      Filesize

      4KB

    • memory/2104-57-0x0000000006E90000-0x0000000006E91000-memory.dmp

      Filesize

      4KB

    • memory/2104-25-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

    • memory/2104-24-0x000000000040CD2F-mapping.dmp

    • memory/2104-56-0x0000000006D60000-0x0000000006D61000-memory.dmp

      Filesize

      4KB

    • memory/2104-55-0x0000000006A60000-0x0000000006A61000-memory.dmp

      Filesize

      4KB

    • memory/2104-54-0x00000000069E0000-0x00000000069E1000-memory.dmp

      Filesize

      4KB

    • memory/2104-51-0x0000000006810000-0x0000000006811000-memory.dmp

      Filesize

      4KB

    • memory/2724-21-0x0000000000400000-0x0000000000447000-memory.dmp

      Filesize

      284KB

    • memory/2724-20-0x0000000000401480-mapping.dmp

    • memory/2724-18-0x0000000000400000-0x0000000000447000-memory.dmp

      Filesize

      284KB

    • memory/2764-50-0x0000000000000000-mapping.dmp

    • memory/2820-49-0x0000000000000000-mapping.dmp

    • memory/3468-5-0x0000000072940000-0x000000007302E000-memory.dmp

      Filesize

      6.9MB

    • memory/3468-6-0x0000000000450000-0x0000000000451000-memory.dmp

      Filesize

      4KB

    • memory/3468-2-0x0000000000000000-mapping.dmp

    • memory/4020-62-0x0000000000401480-mapping.dmp

    • memory/4072-8-0x0000000000000000-mapping.dmp

    • memory/4072-11-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

      Filesize

      4KB