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Analysis

  • max time kernel
    315s
  • max time network
    882s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    07/09/2024, 18:11

General

  • Target

    Bootstrapper_1725724037599_1sly5.exe

  • Size

    146KB

  • MD5

    bc832d4fef741681578a87eb5d95b292

  • SHA1

    75a89d287b15af8c6b8bcd9fa7887badc1850c5d

  • SHA256

    5aa9d099dfc103dc52a33655e57845c6084b5d6bfab65abf4f3daea9911c613a

  • SHA512

    270298becb80e7398ee608c780185caa6cfe1b48319c87302efd1fbc17f73f5acf9926295420e3dc8caeaa6e80f57db235e0d9adc2e37dda674d6d85c01be4f8

  • SSDEEP

    3072:8PCyYwC+M2FEv80IZOA/CyYwC+M2FEv80IZOAU80IZOA4:ghY7X2Kvh4hY7X2Kvhvh

Malware Config

Extracted

Family

lumma

C2

https://chocolatedwq.shop/api

https://condedqpwqm.shop/api

Signatures

  • Lumma Stealer, LummaC

    Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

  • Process spawned unexpected child process 3 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

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

  • Downloads MZ/PE file
  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Enumerates processes with tasklist 1 TTPs 6 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bootstrapper_1725724037599_1sly5.exe
    "C:\Users\Admin\AppData\Local\Temp\Bootstrapper_1725724037599_1sly5.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3660
    • C:\Sola\soles.exe
      "C:\Sola\soles.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2400
      • C:\Users\Admin\AppData\Local\Temp\is-RF4DE.tmp\soles.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-RF4DE.tmp\soles.tmp" /SL5="$9020C,10256339,804864,C:\Sola\soles.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1892
        • C:\Sola\soles.exe
          "C:\Sola\soles.exe" /VERYSILENT /NORESTART
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4964
          • C:\Users\Admin\AppData\Local\Temp\is-4R7Q9.tmp\soles.tmp
            "C:\Users\Admin\AppData\Local\Temp\is-4R7Q9.tmp\soles.tmp" /SL5="$A020C,10256339,804864,C:\Sola\soles.exe" /VERYSILENT /NORESTART
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of WriteProcessMemory
            PID:2996
            • C:\Windows\system32\cmd.exe
              "cmd.exe" /C tasklist /FI "IMAGENAME eq wrsa.exe" /FO CSV /NH | find /I "wrsa.exe"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:1680
              • C:\Windows\system32\tasklist.exe
                tasklist /FI "IMAGENAME eq wrsa.exe" /FO CSV /NH
                7⤵
                • Enumerates processes with tasklist
                PID:3604
              • C:\Windows\system32\find.exe
                find /I "wrsa.exe"
                7⤵
                  PID:2312
              • C:\Windows\system32\cmd.exe
                "cmd.exe" /C tasklist /FI "IMAGENAME eq opssvc.exe" /FO CSV /NH | find /I "opssvc.exe"
                6⤵
                • Suspicious use of WriteProcessMemory
                PID:2340
                • C:\Windows\system32\tasklist.exe
                  tasklist /FI "IMAGENAME eq opssvc.exe" /FO CSV /NH
                  7⤵
                  • Enumerates processes with tasklist
                  PID:5084
                • C:\Windows\system32\find.exe
                  find /I "opssvc.exe"
                  7⤵
                    PID:2256
                • C:\Windows\system32\cmd.exe
                  "cmd.exe" /C tasklist /FI "IMAGENAME eq avastui.exe" /FO CSV /NH | find /I "avastui.exe"
                  6⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2652
                  • C:\Windows\system32\tasklist.exe
                    tasklist /FI "IMAGENAME eq avastui.exe" /FO CSV /NH
                    7⤵
                    • Enumerates processes with tasklist
                    PID:4920
                  • C:\Windows\system32\find.exe
                    find /I "avastui.exe"
                    7⤵
                      PID:3672
                  • C:\Windows\system32\cmd.exe
                    "cmd.exe" /C tasklist /FI "IMAGENAME eq avgui.exe" /FO CSV /NH | find /I "avgui.exe"
                    6⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1464
                    • C:\Windows\system32\tasklist.exe
                      tasklist /FI "IMAGENAME eq avgui.exe" /FO CSV /NH
                      7⤵
                      • Enumerates processes with tasklist
                      PID:5060
                    • C:\Windows\system32\find.exe
                      find /I "avgui.exe"
                      7⤵
                        PID:648
                    • C:\Windows\system32\cmd.exe
                      "cmd.exe" /C tasklist /FI "IMAGENAME eq nswscsvc.exe" /FO CSV /NH | find /I "nswscsvc.exe"
                      6⤵
                      • Suspicious use of WriteProcessMemory
                      PID:4164
                      • C:\Windows\system32\tasklist.exe
                        tasklist /FI "IMAGENAME eq nswscsvc.exe" /FO CSV /NH
                        7⤵
                        • Enumerates processes with tasklist
                        PID:3192
                      • C:\Windows\system32\find.exe
                        find /I "nswscsvc.exe"
                        7⤵
                          PID:4644
                      • C:\Windows\system32\cmd.exe
                        "cmd.exe" /C tasklist /FI "IMAGENAME eq sophoshealth.exe" /FO CSV /NH | find /I "sophoshealth.exe"
                        6⤵
                        • Suspicious use of WriteProcessMemory
                        PID:3184
                        • C:\Windows\system32\tasklist.exe
                          tasklist /FI "IMAGENAME eq sophoshealth.exe" /FO CSV /NH
                          7⤵
                          • Enumerates processes with tasklist
                          PID:4236
                        • C:\Windows\system32\find.exe
                          find /I "sophoshealth.exe"
                          7⤵
                            PID:2576
                        • C:\Users\Admin\AppData\Local\nuclear\AutoIt3.exe
                          "C:\Users\Admin\AppData\Local\nuclear\\AutoIt3.exe" "C:\Users\Admin\AppData\Local\nuclear\\braise.a3x"
                          6⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          • Suspicious use of WriteProcessMemory
                          PID:2900
                          • C:\Windows\SysWOW64\cmd.exe
                            "C:\Windows\System32\cmd.exe" /c ping -n 5 127.0.0.1 >nul && AutoIt3.exe C:\ProgramData\\kBvddF.a3x && del C:\ProgramData\\kBvddF.a3x
                            7⤵
                            • System Location Discovery: System Language Discovery
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Suspicious use of WriteProcessMemory
                            PID:4196
                            • C:\Windows\SysWOW64\PING.EXE
                              ping -n 5 127.0.0.1
                              8⤵
                              • System Location Discovery: System Language Discovery
                              • System Network Configuration Discovery: Internet Connection Discovery
                              • Runs ping.exe
                              PID:4268
                            • C:\Users\Admin\AppData\Local\nuclear\AutoIt3.exe
                              AutoIt3.exe C:\ProgramData\\kBvddF.a3x
                              8⤵
                              • Executes dropped EXE
                              • Suspicious use of SetThreadContext
                              • System Location Discovery: System Language Discovery
                              • Checks processor information in registry
                              • Suspicious use of WriteProcessMemory
                              PID:2796
                              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
                                C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
                                9⤵
                                  PID:2488
                                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
                                  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
                                  9⤵
                                  • System Location Discovery: System Language Discovery
                                  PID:3648
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 1108
                                    10⤵
                                    • Program crash
                                    PID:1108
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 1076
                                    10⤵
                                    • Program crash
                                    PID:2096
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  powershell.exe -Command "Add-MpPreference -ExclusionPath 'C:\Sola'"
                  1⤵
                  • Process spawned unexpected child process
                  • Command and Scripting Interpreter: PowerShell
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:200
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  powershell.exe -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\Desktop'"
                  1⤵
                  • Process spawned unexpected child process
                  • Command and Scripting Interpreter: PowerShell
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:164
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  powershell.exe -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
                  1⤵
                  • Process spawned unexpected child process
                  • Command and Scripting Interpreter: PowerShell
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4240
                • C:\Users\Public\Desktop\BootstrapperV1.16.exe
                  "C:\Users\Public\Desktop\BootstrapperV1.16.exe"
                  1⤵
                  • Executes dropped EXE
                  PID:4384

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Sola\soles.exe

                  Filesize

                  10.7MB

                  MD5

                  6ae74315bdb5b5f757005d23967bcf73

                  SHA1

                  834c5b96f91e9349ae91ed4cd5cc8897f58a3fdb

                  SHA256

                  66397977e36190a9f7ca77e93bfceb8e731838e5ce824bcd22222339b007891d

                  SHA512

                  bf54808fd4ad33d0929868c90fc7b8cf0e9a9ab5c8507d9de676966143b8a9556dadd7ffd7365f3bbc7065ef98b0f75c78267558824df8bea4a358ef52973b77

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

                  Filesize

                  3KB

                  MD5

                  ad5cd538ca58cb28ede39c108acb5785

                  SHA1

                  1ae910026f3dbe90ed025e9e96ead2b5399be877

                  SHA256

                  c9e6cb04d6c893458d5a7e12eb575cf97c3172f5e312b1f63a667cbbc5f0c033

                  SHA512

                  c066c5d9b276a68fa636647bb29aea05bfa2292217bc77f5324d9c1d93117772ee8277e1f7cff91ec8d6b7c05ca078f929cecfdbb09582522a9067f54740af13

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

                  Filesize

                  1KB

                  MD5

                  764520cf3955cacaf41b3ae895722a3b

                  SHA1

                  f4e3184d4dd31ee9cfdd4fc601211a123f1d56eb

                  SHA256

                  293c219f770dfaaeae310ca4271896edcbb0c557b4dd2dd7f95859a9a3fa2a01

                  SHA512

                  9315de9a25d64f455e796694867304833ede0416769b6734feb1b9d712469f2f1b0a7587c9b2d294e66dfe514cb6057e916fb5e175c4c927c812926fcaeafadd

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

                  Filesize

                  1KB

                  MD5

                  3fe20f5f8dcd6e42a7d1116d8b283364

                  SHA1

                  28c0d5beb83f9b168fb3ea54e5b7c2c2e9f2197f

                  SHA256

                  653457bfd3826191c6ffc6ad2bb413ac265effec16b33b7d07d381880da1b497

                  SHA512

                  de33af9e4166ac2cb9674eba4e2a182375d17717114a7fc44828ddf920b26036a77f710f2785a7496e75532d54b5ec221b5822eafda4a80ec2d9e10360938968

                • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bfbgnh0n.epz.ps1

                  Filesize

                  1B

                  MD5

                  c4ca4238a0b923820dcc509a6f75849b

                  SHA1

                  356a192b7913b04c54574d18c28d46e6395428ab

                  SHA256

                  6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

                  SHA512

                  4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

                • C:\Users\Admin\AppData\Local\Temp\is-RF4DE.tmp\soles.tmp

                  Filesize

                  3.1MB

                  MD5

                  92a8f182782b7676afc20be2333e7677

                  SHA1

                  82d7e177cb3e40add5d01b68f5ae13264afb2df8

                  SHA256

                  326db8668e61efa37036e9e7e6934b565e4d4af0454c9c3e6a9799191edabbbc

                  SHA512

                  afedb24077040b81ab761450d4bc1c680862c77291d5c5f9542e5c8cb52d3b0807d3bae02433c3362f88f8bcb5f84dd44d840546f24612e63f35204c2ae69716

                • C:\Users\Admin\AppData\Local\nuclear\AutoIt3.exe

                  Filesize

                  921KB

                  MD5

                  3f58a517f1f4796225137e7659ad2adb

                  SHA1

                  e264ba0e9987b0ad0812e5dd4dd3075531cfe269

                  SHA256

                  1da298cab4d537b0b7b5dabf09bff6a212b9e45731e0cc772f99026005fb9e48

                  SHA512

                  acf740aafce390d06c6a76c84e7ae7c0f721731973aadbe3e57f2eb63241a01303cc6bf11a3f9a88f8be0237998b5772bdaf569137d63ba3d0f877e7d27fc634

                • C:\Users\Admin\AppData\Local\nuclear\braise.a3x

                  Filesize

                  60KB

                  MD5

                  8e1a70b54af4c2bcc655f944bb833453

                  SHA1

                  e3364c0bc8bc33dced566816061ce84ca06f0fb4

                  SHA256

                  8e7a44ea4294d797392441f86aa2090041040c83938ff585bec1f8ccb3b20b29

                  SHA512

                  f81c34bfd738d7d7ba04a35db243c24b2c980576a756d174ab916710ed06c3f2c09f1a92866d89a6985fd6c874fbb97091e4ab188452173e1e0ff60a1b2416e4

                • C:\Users\Admin\AppData\Local\nuclear\braise.adt

                  Filesize

                  476KB

                  MD5

                  10e368548939707ba299e05a5a285f7a

                  SHA1

                  0c190ced4b2746d72bed6240fc4414c4a0b22add

                  SHA256

                  14458c1c57a94145e00116826e6c60e0646a9b62799ecd966b81d957b25dfc90

                  SHA512

                  1cd819c5a83c7965a8998678ab6675673f881df5cfbe7b10b24b0963954d5e85da42e7507e6fdc1d6b68175063ba600a803a56e50e6aca4a949ede4059fdbcb8

                • C:\Users\Public\Desktop\BootstrapperV1.16.exe

                  Filesize

                  796KB

                  MD5

                  76639ab92661f5c384302899934051ab

                  SHA1

                  9b33828f8ad3a686ff02b1a4569b8ae38128caed

                  SHA256

                  6bb9ad960bcc9010db1b9918369bdfc4558f19287b5b6562079c610a28320178

                  SHA512

                  928e4374c087070f8a6786f9082f05a866751ea877edf9afa23f6941dfc4d6762e1688bbb135788d6286ec324fa117fc60b46fed2f6e3a4ab059465a00f2ebee

                • \Users\Admin\AppData\Local\Temp\is-7S42F.tmp\_isetup\_iscrypt.dll

                  Filesize

                  2KB

                  MD5

                  a69559718ab506675e907fe49deb71e9

                  SHA1

                  bc8f404ffdb1960b50c12ff9413c893b56f2e36f

                  SHA256

                  2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

                  SHA512

                  e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

                • memory/164-21-0x00007FFAB45F0000-0x00007FFAB4FDC000-memory.dmp

                  Filesize

                  9.9MB

                • memory/164-26-0x000002743D680000-0x000002743D6F6000-memory.dmp

                  Filesize

                  472KB

                • memory/164-24-0x00007FFAB45F0000-0x00007FFAB4FDC000-memory.dmp

                  Filesize

                  9.9MB

                • memory/164-141-0x00007FFAB45F0000-0x00007FFAB4FDC000-memory.dmp

                  Filesize

                  9.9MB

                • memory/164-14-0x00007FFAB45F0000-0x00007FFAB4FDC000-memory.dmp

                  Filesize

                  9.9MB

                • memory/200-27-0x00007FFAB45F0000-0x00007FFAB4FDC000-memory.dmp

                  Filesize

                  9.9MB

                • memory/200-19-0x0000021A6FC80000-0x0000021A6FCA2000-memory.dmp

                  Filesize

                  136KB

                • memory/200-145-0x00007FFAB45F0000-0x00007FFAB4FDC000-memory.dmp

                  Filesize

                  9.9MB

                • memory/200-13-0x00007FFAB45F0000-0x00007FFAB4FDC000-memory.dmp

                  Filesize

                  9.9MB

                • memory/200-7-0x00007FFAB45F3000-0x00007FFAB45F4000-memory.dmp

                  Filesize

                  4KB

                • memory/1892-167-0x0000000001160000-0x0000000001492000-memory.dmp

                  Filesize

                  3.2MB

                • memory/2400-169-0x0000000001300000-0x00000000013D2000-memory.dmp

                  Filesize

                  840KB

                • memory/2400-151-0x0000000001300000-0x00000000013D2000-memory.dmp

                  Filesize

                  840KB

                • memory/2996-326-0x0000000001290000-0x00000000015C2000-memory.dmp

                  Filesize

                  3.2MB

                • memory/3648-335-0x0000000000400000-0x0000000000458000-memory.dmp

                  Filesize

                  352KB

                • memory/3648-337-0x0000000000400000-0x0000000000458000-memory.dmp

                  Filesize

                  352KB

                • memory/3648-336-0x0000000000400000-0x0000000000458000-memory.dmp

                  Filesize

                  352KB

                • memory/3660-22-0x000000000A5C0000-0x000000000A5F8000-memory.dmp

                  Filesize

                  224KB

                • memory/3660-154-0x0000000073A00000-0x00000000740EE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/3660-146-0x0000000073A0E000-0x0000000073A0F000-memory.dmp

                  Filesize

                  4KB

                • memory/3660-0-0x0000000073A0E000-0x0000000073A0F000-memory.dmp

                  Filesize

                  4KB

                • memory/3660-20-0x0000000009710000-0x0000000009718000-memory.dmp

                  Filesize

                  32KB

                • memory/3660-3-0x00000000050C0000-0x0000000005126000-memory.dmp

                  Filesize

                  408KB

                • memory/3660-2-0x0000000073A00000-0x00000000740EE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/3660-340-0x0000000073A00000-0x00000000740EE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/3660-1-0x0000000000540000-0x000000000056A000-memory.dmp

                  Filesize

                  168KB

                • memory/4384-343-0x00000298302A0000-0x000002983036E000-memory.dmp

                  Filesize

                  824KB

                • memory/4964-165-0x0000000001300000-0x00000000013D2000-memory.dmp

                  Filesize

                  840KB

                • memory/4964-328-0x0000000001300000-0x00000000013D2000-memory.dmp

                  Filesize

                  840KB