Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-04-2024 22:11

General

  • Target

    tmp.exe

  • Size

    79KB

  • MD5

    1e8a2ed2e3f35620fb6b8c2a782a57f3

  • SHA1

    e924ce6d147ecc8b30b7c7cad02e5c9ae09a743a

  • SHA256

    3f16f4550826076b2c8cd7b392ee649aeb06740328658a2d30c3d2002c6b7879

  • SHA512

    ce4dc7fdd7f81a7a127d650f9175292b287b4803d815d74b64a4e5125cff66224d75e7ecade1d9c0e42f870bdb49a78e9613b1a49675ab5bc098611b99b49ade

  • SSDEEP

    1536:y3Mz8f2Z9F1nc2ZWEa5pFeStStfFPeeeeeeeeWeeeee:ZwfYFRVZWz3XtStfF

Malware Config

Extracted

Family

phorphiex

C2

http://185.215.113.66/

Wallets

0xAa3ea4838e8E3F6a1922c6B67E3cD6efD1ff175b

THRUoPK7oYqF7YyKZJvPYwTH35JsPZVPto

1Hw9tx4KyTq4oRoLVhPb4hjDJcLhEa4Tn6

qr89hag2967ef604ud3lw4pq8hmn69n46czwdnx3ut

XtxFdsKkRN3oVDXtN2ipcHeNi87basT2sL

LXMNcn9D8FQKzGNLjdSyR9dEM8Rsh9NzyX

rwn7tb5KQjXEjH42GgdHWHec5PPhVgqhSH

ARML6g7zynrwUHJbFJCCzMPiysUFXYBGgQ

48jYpFT6bT8MTeph7VsyzCQeDsGHqdQNc2kUkRFJPzfRHHjarBvBtudPUtParMkDzZbYBrd3yntWBQcsnVBNeeMbN9EXifg

3PL7YCa4akNYzuScqQwiSbtTP9q9E9PLreC

3FerB8kUraAVGCVCNkgv57zTBjUGjAUkU3

D9AJWrbYsidS9rAU146ifLRu1fzX9oQYSH

t1gvVWHnjbGTsoWXEyoTFojc2GqEzBgvbEn

bnb1cgttf7t5hu7ud3c436ufhcmy59qnkd09adqczd

bc1q0fusmmgycnhsd5cadsuz2hk8d4maausjfjypqg

bitcoincash:qr89hag2967ef604ud3lw4pq8hmn69n46czwdnx3ut

GAUCC7ZBSU2KJMHXOZD6AP5LOBGKNDPCDNRYP2CO2ACR63YCSUBNT5QE

Signatures

  • Modifies security service 2 TTPs 1 IoCs
  • Phorphiex

    Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.

  • Windows security bypass 2 TTPs 18 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 12 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Windows security modification 2 TTPs 21 IoCs
  • Adds Run key to start application 2 TTPs 5 IoCs
  • Drops file in Windows directory 6 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:236
    • C:\Windows\sylsplvc.exe
      C:\Windows\sylsplvc.exe
      2⤵
      • Windows security bypass
      • Executes dropped EXE
      • Windows security modification
      • Suspicious use of WriteProcessMemory
      PID:3372
      • C:\Users\Admin\AppData\Local\Temp\242711398.exe
        C:\Users\Admin\AppData\Local\Temp\242711398.exe
        3⤵
        • Modifies security service
        • Windows security bypass
        • Executes dropped EXE
        • Windows security modification
        • Adds Run key to start application
        • Drops file in Windows directory
        • Suspicious behavior: SetClipboardViewer
        • Suspicious use of WriteProcessMemory
        PID:2748
        • C:\Users\Admin\AppData\Local\Temp\2769418480.exe
          C:\Users\Admin\AppData\Local\Temp\2769418480.exe
          4⤵
          • Executes dropped EXE
          PID:2408
        • C:\Users\Admin\AppData\Local\Temp\231398927.exe
          C:\Users\Admin\AppData\Local\Temp\231398927.exe
          4⤵
          • Executes dropped EXE
          PID:4140
        • C:\Users\Admin\AppData\Local\Temp\2933332145.exe
          C:\Users\Admin\AppData\Local\Temp\2933332145.exe
          4⤵
          • Executes dropped EXE
          PID:2940
        • C:\Users\Admin\AppData\Local\Temp\3136629633.exe
          C:\Users\Admin\AppData\Local\Temp\3136629633.exe
          4⤵
          • Executes dropped EXE
          PID:3644
      • C:\Users\Admin\AppData\Local\Temp\61953122.exe
        C:\Users\Admin\AppData\Local\Temp\61953122.exe
        3⤵
        • Windows security bypass
        • Executes dropped EXE
        • Windows security modification
        • Adds Run key to start application
        • Drops file in Windows directory
        PID:4724
      • C:\Users\Admin\AppData\Local\Temp\990027206.exe
        C:\Users\Admin\AppData\Local\Temp\990027206.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:4920
        • C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe
          "C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe"
          4⤵
          • Executes dropped EXE
          PID:5032
        • C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe
          "C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe"
          4⤵
          • Executes dropped EXE
          PID:4456
        • C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe
          "C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe"
          4⤵
          • Executes dropped EXE
          PID:1960
      • C:\Users\Admin\AppData\Local\Temp\2826525206.exe
        C:\Users\Admin\AppData\Local\Temp\2826525206.exe
        3⤵
        • Executes dropped EXE
        PID:1576

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\Y5QSBN5I\1[1]

    Filesize

    81KB

    MD5

    01e5faba64d8e9a9c187831fdc819f4c

    SHA1

    350a1a2bf237e64f43716262f99c632f5e01ba62

    SHA256

    7f4f76bd8fa91a71ce7999f9bbd0f7a63ca82d4e96b4d99cfad98edde1d85450

    SHA512

    f4bc09ab9e4579b82707d6420e3b9df9ec4fd77e11ce5eb8304b45e3b5c9403c01de4e50f3c7f03f00f3ebc921646794638dccfded199bfe5f3fd727f3e57782

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\Y5QSBN5I\3[1]

    Filesize

    10KB

    MD5

    c5b736fdfbfd976ee44404a1c951b595

    SHA1

    1510c485ac899128829131a28803ec2f33bd46e0

    SHA256

    f87cfef14beacb6b70012fece1aec64b8cb0cc68cce933a512ee025f38356c37

    SHA512

    a1f710b69b7c62047ae8cd02dca747d6158b79b9ae5eea9e64fa8d016e662616993dcc9efbb2816865ad2b2690650fe600507b5b35117643832d7b87e471098a

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\YSO39XSX\2[1]

    Filesize

    14KB

    MD5

    fce292c79288067dc17919ed588c161c

    SHA1

    bb44fa2c95af5bbd11e49264a40c16d6f343fa21

    SHA256

    4ef8146d85d60c2867bdbe44304b5ba00cceb208f4c10c9f91183308e1da3828

    SHA512

    73dac29753044a720fc43b4ee19d320e06855167cdf0ebf329207aa16faa13fd6d2937bd87b54e544dd8d4c3da634773abd73769d3915154099ff01e6e03033e

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\YSO39XSX\5[1]

    Filesize

    8KB

    MD5

    145fc3dbf778aa2ba80af3d74eabfad6

    SHA1

    13dfeadb4b38c461f8b9d25853c0cae5d9a65f7c

    SHA256

    5ab3bcaff0514c89388ea4958197ab0ff5bcc5999e1b95d830bc72da94bd4200

    SHA512

    9bd7d50d489c4fc57ee1a0d3ad3cd2d29ca20f8ad1e46668a36d7ecced42db03a6980b039a2aeb7a1e1761aef89d994d73a497043ba744678290a8a9772a6306

  • C:\Users\Admin\AppData\Local\Temp\242711398.exe

    Filesize

    81KB

    MD5

    f4713c8ac5fc1e4919156157e7bece19

    SHA1

    7bd9e35b1d1210183bbb4fe1995895cbc1692c62

    SHA256

    2be2206e079516c8cfa50bbc86f8a431898aa90dd73f7cfc6af1d21573247c4b

    SHA512

    ecff8f3af212f444b5f44fd3bfd922556a49b9156fd7a20e13ebc60b4abe08b9d193a49556d4a8e776ef8083db77ab9667ec537dd44f863719e83cb3899cb46f

  • C:\Users\Admin\AppData\Local\Temp\2769418480.exe

    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • C:\Users\Admin\AppData\Local\Temp\2826525206.exe

    Filesize

    8KB

    MD5

    c34a248f132e739652407b0aa8c978cd

    SHA1

    f7f05357fd6ab2d1a11e3427ee46626bb6ad94ee

    SHA256

    4c9c53256ff65c9930c38b193537ad510930c25052231c7eef3715057b79e578

    SHA512

    f7999e8b903fbc2e715d6d7e7bb0bc421cef79dbd61f6d94f18fa63c99a420d2a70d4b23fa0b8ec05d073c954aec718be588ada718bb0f5aacd618ad815f2703

  • C:\Users\Admin\AppData\Local\Temp\61953122.exe

    Filesize

    14KB

    MD5

    2f4ab1a4a57649200550c0906d57bc28

    SHA1

    94bc52ed3921791630b2a001d9565b8f1bd3bd17

    SHA256

    baa6149b5b917ea3af1f7c77a65e26a34a191a31a9c79726bd60baf4656701fa

    SHA512

    ab1a59aa4c48f6c7fcf7950f4a68c3b89a56f266681a5aabd0df947af8340676e209d82ddd1997bfebd972b35ca235233b61231335aec4567f7b031e786ea7e8

  • C:\Users\Admin\AppData\Local\Temp\990027206.exe

    Filesize

    10KB

    MD5

    0ed58505911ae244fa62cbd899612bb7

    SHA1

    f6ec97ec48d33f752c90ac5fd0b9314d7b505a22

    SHA256

    8b2b24a2c1f47acf527a8acc704fc77aecc036b09cdbd96ef32d3cf43ddce578

    SHA512

    c4508e90025521b537e9eb13b8c15990aa893b22ebd090e96ce53efa4b333184c99abcccf6bc90ad5d6e53a13883ec711da43f7083216edd7f403fe05dd1c983

  • C:\Users\Admin\AppData\Local\Temp\Windows Security Upgrade Service.exe

    Filesize

    20KB

    MD5

    f4355af73c2dd6e8eb69f29570431f6a

    SHA1

    a0ba95d51d98fd602ab29531a7b0695496657a74

    SHA256

    31be31131a00b743ea598caf706b7c08703d98c3b90aed0523a0aace6ebe318c

    SHA512

    ea8cc7f93bf52da4a9637e40066606091883176914ae45af5fcb7323b48b832bdf8a67e1527bc549d7aacf964dc1ca2b2305e78552c55ebb128f987e9f0112c1

  • C:\Windows\sylsplvc.exe

    Filesize

    79KB

    MD5

    1e8a2ed2e3f35620fb6b8c2a782a57f3

    SHA1

    e924ce6d147ecc8b30b7c7cad02e5c9ae09a743a

    SHA256

    3f16f4550826076b2c8cd7b392ee649aeb06740328658a2d30c3d2002c6b7879

    SHA512

    ce4dc7fdd7f81a7a127d650f9175292b287b4803d815d74b64a4e5125cff66224d75e7ecade1d9c0e42f870bdb49a78e9613b1a49675ab5bc098611b99b49ade