Analysis

  • max time kernel
    128s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    31-10-2023 19:31

General

  • Target

    5d703452cbb25b34284f659ebc4044a921a6b713508de5d0f5f670a692295828.exe

  • Size

    1016KB

  • MD5

    4547a9f78f96e851942d14449932412f

  • SHA1

    ce572a3e52f705ba4b80437d962abd38a95299f8

  • SHA256

    5d703452cbb25b34284f659ebc4044a921a6b713508de5d0f5f670a692295828

  • SHA512

    d40035747bff48059012e1743338e463e8e77a6584a51001f8716223dad64709be149543b7ee799a12089633ac70689cb145ef077f1f82fbf0e5129237d87501

  • SSDEEP

    24576:mYCFCdoKbl2cVdrAXIwK3+X5TNkdBAnlXG6+Z1mbXaZooW:osbl2cVdrKIX+XXkUlXF+Z1IqZooW

Score
9/10

Malware Config

Signatures

  • Nirsoft 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • UPX packed file 13 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5d703452cbb25b34284f659ebc4044a921a6b713508de5d0f5f670a692295828.exe
    "C:\Users\Admin\AppData\Local\Temp\5d703452cbb25b34284f659ebc4044a921a6b713508de5d0f5f670a692295828.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
      C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
      2⤵
      • Executes dropped EXE
      PID:2344
    • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
      C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
      2⤵
      • Executes dropped EXE
      PID:2772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab4E51.tmp

    Filesize

    61KB

    MD5

    f3441b8572aae8801c04f3060b550443

    SHA1

    4ef0a35436125d6821831ef36c28ffaf196cda15

    SHA256

    6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

    SHA512

    5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

  • C:\Users\Admin\AppData\Local\Temp\Tar4E92.tmp

    Filesize

    163KB

    MD5

    9441737383d21192400eca82fda910ec

    SHA1

    725e0d606a4fc9ba44aa8ffde65bed15e65367e4

    SHA256

    bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

    SHA512

    7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

  • C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt

    Filesize

    31B

    MD5

    b7161c0845a64ff6d7345b67ff97f3b0

    SHA1

    d223f855da541fe8e4c1d5c50cb26da0a1deb5fc

    SHA256

    fe9e28ff0b652e22a124b0a05382bc1ac48cbd9c7c76ca647b0c9f8542888f66

    SHA512

    98d8971ff20ba256cf886a9db416ac9366d2c6ad4ff51a65bd7e539974dc93f4c897f92d8c9c0319c69b27eacf05cd350a0302828e63190b03457a0eda57f680

  • C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt

    Filesize

    31B

    MD5

    b7161c0845a64ff6d7345b67ff97f3b0

    SHA1

    d223f855da541fe8e4c1d5c50cb26da0a1deb5fc

    SHA256

    fe9e28ff0b652e22a124b0a05382bc1ac48cbd9c7c76ca647b0c9f8542888f66

    SHA512

    98d8971ff20ba256cf886a9db416ac9366d2c6ad4ff51a65bd7e539974dc93f4c897f92d8c9c0319c69b27eacf05cd350a0302828e63190b03457a0eda57f680

  • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe

    Filesize

    184KB

    MD5

    7fee8223d6e4f82d6cd115a28f0b6d58

    SHA1

    1b89c25f25253df23426bd9ff6c9208f1202f58b

    SHA256

    a45317c374d54e322153afd73f0e90f1486638d77b7fd85746d091071bbecd59

    SHA512

    3ed900b83dd178637c2fd4e8444a899f17f12c4ec92a6f4de4fe544fe8d41b521c69b8f348343cb397d0e160f23e27429042d758b5fa5acac0bab5c3584bace4

  • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe

    Filesize

    184KB

    MD5

    7fee8223d6e4f82d6cd115a28f0b6d58

    SHA1

    1b89c25f25253df23426bd9ff6c9208f1202f58b

    SHA256

    a45317c374d54e322153afd73f0e90f1486638d77b7fd85746d091071bbecd59

    SHA512

    3ed900b83dd178637c2fd4e8444a899f17f12c4ec92a6f4de4fe544fe8d41b521c69b8f348343cb397d0e160f23e27429042d758b5fa5acac0bab5c3584bace4

  • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe

    Filesize

    61KB

    MD5

    a6279ec92ff948760ce53bba817d6a77

    SHA1

    5345505e12f9e4c6d569a226d50e71b5a572dce2

    SHA256

    8b581869bf8944a8e0aa169adea2a4afe47434123da477132880aff6a5032181

    SHA512

    213cb374f1273c899e0c88a20c0101a7c28024ce5046a2e0d7898bd182d918288bb80367fea4454c437c057ff9ed4fffd42be48a13ca73653021a6d63e1cfa9c

  • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe

    Filesize

    61KB

    MD5

    a6279ec92ff948760ce53bba817d6a77

    SHA1

    5345505e12f9e4c6d569a226d50e71b5a572dce2

    SHA256

    8b581869bf8944a8e0aa169adea2a4afe47434123da477132880aff6a5032181

    SHA512

    213cb374f1273c899e0c88a20c0101a7c28024ce5046a2e0d7898bd182d918288bb80367fea4454c437c057ff9ed4fffd42be48a13ca73653021a6d63e1cfa9c

  • \Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe

    Filesize

    184KB

    MD5

    7fee8223d6e4f82d6cd115a28f0b6d58

    SHA1

    1b89c25f25253df23426bd9ff6c9208f1202f58b

    SHA256

    a45317c374d54e322153afd73f0e90f1486638d77b7fd85746d091071bbecd59

    SHA512

    3ed900b83dd178637c2fd4e8444a899f17f12c4ec92a6f4de4fe544fe8d41b521c69b8f348343cb397d0e160f23e27429042d758b5fa5acac0bab5c3584bace4

  • \Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe

    Filesize

    184KB

    MD5

    7fee8223d6e4f82d6cd115a28f0b6d58

    SHA1

    1b89c25f25253df23426bd9ff6c9208f1202f58b

    SHA256

    a45317c374d54e322153afd73f0e90f1486638d77b7fd85746d091071bbecd59

    SHA512

    3ed900b83dd178637c2fd4e8444a899f17f12c4ec92a6f4de4fe544fe8d41b521c69b8f348343cb397d0e160f23e27429042d758b5fa5acac0bab5c3584bace4

  • \Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe

    Filesize

    61KB

    MD5

    a6279ec92ff948760ce53bba817d6a77

    SHA1

    5345505e12f9e4c6d569a226d50e71b5a572dce2

    SHA256

    8b581869bf8944a8e0aa169adea2a4afe47434123da477132880aff6a5032181

    SHA512

    213cb374f1273c899e0c88a20c0101a7c28024ce5046a2e0d7898bd182d918288bb80367fea4454c437c057ff9ed4fffd42be48a13ca73653021a6d63e1cfa9c

  • \Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe

    Filesize

    61KB

    MD5

    a6279ec92ff948760ce53bba817d6a77

    SHA1

    5345505e12f9e4c6d569a226d50e71b5a572dce2

    SHA256

    8b581869bf8944a8e0aa169adea2a4afe47434123da477132880aff6a5032181

    SHA512

    213cb374f1273c899e0c88a20c0101a7c28024ce5046a2e0d7898bd182d918288bb80367fea4454c437c057ff9ed4fffd42be48a13ca73653021a6d63e1cfa9c

  • memory/2136-57-0x00000000001A0000-0x00000000001C2000-memory.dmp

    Filesize

    136KB

  • memory/2136-52-0x00000000001A0000-0x00000000001C2000-memory.dmp

    Filesize

    136KB

  • memory/2136-9-0x0000000000910000-0x000000000096B000-memory.dmp

    Filesize

    364KB

  • memory/2136-62-0x0000000000910000-0x000000000096B000-memory.dmp

    Filesize

    364KB

  • memory/2136-4-0x0000000000910000-0x000000000096B000-memory.dmp

    Filesize

    364KB

  • memory/2136-65-0x00000000001A0000-0x00000000001C2000-memory.dmp

    Filesize

    136KB

  • memory/2136-66-0x00000000001A0000-0x00000000001C2000-memory.dmp

    Filesize

    136KB

  • memory/2344-12-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/2772-61-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB