Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    10-04-2024 09:27

General

  • Target

    2024-04-10_c1c6c2df10c36dfc85d03e1d95b833f2_ryuk.exe

  • Size

    195KB

  • MD5

    c1c6c2df10c36dfc85d03e1d95b833f2

  • SHA1

    a31e45c338b3d408c83ca83074ededf35fe0a831

  • SHA256

    baa573f6d713c298d0ea60bc46061491703574460f7bad2c25f53812583bef86

  • SHA512

    ac5f9dad5c87ca32025348e860a0ecee8a4832ebf3085840ccd3eba8c2c134b6672730b6be911b222d8473dd6262ca81e47db305568844d3496de2a687623592

  • SSDEEP

    3072:hSf9QqTjhSp29ZPLoFrn7CdIEwCh0RP+LrzyLPwB4Sa6v9ZX0t5xT79VRSVO:hSlNQp2/LoFrnjv7POnyrwB1EtPE0

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

  • 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 10 IoCs
  • Loads dropped DLL 12 IoCs
  • Windows security modification 2 TTPs 21 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Drops file in Windows directory 6 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-10_c1c6c2df10c36dfc85d03e1d95b833f2_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-10_c1c6c2df10c36dfc85d03e1d95b833f2_ryuk.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2888
    • C:\Users\Admin\AppData\Local\Temp\A1E.exe
      "C:\Users\Admin\AppData\Local\Temp\A1E.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3016
      • C:\Users\Admin\AppData\Local\Temp\3225924532.exe
        C:\Users\Admin\AppData\Local\Temp\3225924532.exe
        3⤵
        • Windows security bypass
        • Executes dropped EXE
        • Loads dropped DLL
        • Windows security modification
        • Adds Run key to start application
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2628
        • C:\Users\Admin\AppData\Local\Temp\2503029972.exe
          C:\Users\Admin\AppData\Local\Temp\2503029972.exe
          4⤵
          • Windows security bypass
          • Executes dropped EXE
          • Loads dropped DLL
          • Windows security modification
          • Adds Run key to start application
          • Drops file in Windows directory
          • Suspicious behavior: SetClipboardViewer
          • Suspicious use of WriteProcessMemory
          PID:2816
          • C:\Users\Admin\AppData\Local\Temp\291564886.exe
            C:\Users\Admin\AppData\Local\Temp\291564886.exe
            5⤵
            • Executes dropped EXE
            PID:2564
          • C:\Users\Admin\AppData\Local\Temp\2930628013.exe
            C:\Users\Admin\AppData\Local\Temp\2930628013.exe
            5⤵
            • Executes dropped EXE
            PID:2652
          • C:\Users\Admin\AppData\Local\Temp\2945618372.exe
            C:\Users\Admin\AppData\Local\Temp\2945618372.exe
            5⤵
            • Executes dropped EXE
            PID:608
          • C:\Users\Admin\AppData\Local\Temp\2573815967.exe
            C:\Users\Admin\AppData\Local\Temp\2573815967.exe
            5⤵
            • Executes dropped EXE
            PID:108
        • C:\Users\Admin\AppData\Local\Temp\2294322829.exe
          C:\Users\Admin\AppData\Local\Temp\2294322829.exe
          4⤵
          • Windows security bypass
          • Executes dropped EXE
          • Windows security modification
          • Adds Run key to start application
          • Drops file in Windows directory
          PID:944
        • C:\Users\Admin\AppData\Local\Temp\962614259.exe
          C:\Users\Admin\AppData\Local\Temp\962614259.exe
          4⤵
          • Executes dropped EXE
          PID:2944
        • C:\Users\Admin\AppData\Local\Temp\3066812618.exe
          C:\Users\Admin\AppData\Local\Temp\3066812618.exe
          4⤵
          • Executes dropped EXE
          PID:968

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\7RVTMR7E\2[1]

    Filesize

    14KB

    MD5

    fce292c79288067dc17919ed588c161c

    SHA1

    bb44fa2c95af5bbd11e49264a40c16d6f343fa21

    SHA256

    4ef8146d85d60c2867bdbe44304b5ba00cceb208f4c10c9f91183308e1da3828

    SHA512

    73dac29753044a720fc43b4ee19d320e06855167cdf0ebf329207aa16faa13fd6d2937bd87b54e544dd8d4c3da634773abd73769d3915154099ff01e6e03033e

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\7RVTMR7E\5[1]

    Filesize

    8KB

    MD5

    93c0bd2539d4d4eb74fe6d41c928f66c

    SHA1

    c7a2010ebd934828e20450c5318c8e20168f4ba8

    SHA256

    5d9f88fcde1bd7fbe7ecba0dae737da96a55005b0d61c45c4251be0677195299

    SHA512

    b8c7cdad4cf1ffd9a3bb6ffb36dabec957169bd43e27f0ec48c19693dd014c09916c0df0a46e808dba0450707c89e7dba7d3ff439d763fbe1e4d8b09fad2aad6

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\OIPC4KVX\1[1]

    Filesize

    85KB

    MD5

    34a87206cee71119a2c6a02e0129718e

    SHA1

    806643ae1b7685d64c2796227229461c8d526cd6

    SHA256

    ecea49f9a754af7055b60a860acfd8ce2bc63048c947c9ee6324f07d45c4787d

    SHA512

    e83b0e003687ebe5d5df5bd405b12b267e07252838d1575dc390b409e03279f9d0ce4a4691971a9601f58d52e55af2fa8ea9596ace4bef246f9ef511b65cdbc3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\OIPC4KVX\3[1]

    Filesize

    21KB

    MD5

    c7aa449a4050a54f67400acf3defd02a

    SHA1

    e64d746aca3186259f8b7552bf4f6c31b8fa2888

    SHA256

    dd8f277b22b3da6d4f43af9a5a4bf9515b829d0ffa0a1be6a5ecf5a7e8458b86

    SHA512

    d3f255641caff4e5c3c49407606155aff5aa9fb01bc586abe7fe54f212fcd531f74b13d55423c282ed59550680b354e9fa53c74d4c5707683e4bc44cd11080ca

  • C:\Users\Admin\AppData\Local\Temp\A1E.exe

    Filesize

    9KB

    MD5

    62b97cf4c0abafeda36e3fc101a5a022

    SHA1

    328fae9acff3f17df6e9dc8d6ef1cec679d4eb2b

    SHA256

    e172537adcee1fcdc8f16c23e43a5ac82c56a0347fa0197c08be979438a534ab

    SHA512

    32bd7062aabd25205471cec8d292b820fc2fd2479da6fb723332887fc47036570bb2d25829acb7c883ccaaab272828c8effbc78f02a3deeabb47656f4b64eb24

  • C:\Users\Admin\tbtnds.dat

    Filesize

    4KB

    MD5

    d73cf76255ed3e90e72d98d28e8eddd3

    SHA1

    d58abac9bb8e4bb30cea4ef3ba7aa19186189fb5

    SHA256

    bfcb5f4589729deeeb57b92842933b144322a672cfe3ce11586f1aec83472781

    SHA512

    20ef064050ba23e5163435c595bc9c81422ca3b8ac82338ff965961a954bd9c0da9b13f489997015565908d1105784b712ccc2b3a478fe990e4b99e071bfa9b2

  • \Users\Admin\AppData\Local\Temp\2294322829.exe

    Filesize

    14KB

    MD5

    2f4ab1a4a57649200550c0906d57bc28

    SHA1

    94bc52ed3921791630b2a001d9565b8f1bd3bd17

    SHA256

    baa6149b5b917ea3af1f7c77a65e26a34a191a31a9c79726bd60baf4656701fa

    SHA512

    ab1a59aa4c48f6c7fcf7950f4a68c3b89a56f266681a5aabd0df947af8340676e209d82ddd1997bfebd972b35ca235233b61231335aec4567f7b031e786ea7e8

  • \Users\Admin\AppData\Local\Temp\2503029972.exe

    Filesize

    85KB

    MD5

    10ffc145e1c09190a496a0e0527b4f3f

    SHA1

    e21fba21a11eecb4bc37638f48aed9f09d8912f6

    SHA256

    80b7e224f28c6160737a313221b9fc94d5f5e933ae1438afef4b5fae33185b2d

    SHA512

    bec357e73376f2e9e2963db5f7110a4c90de31a94edfaa7bf59c2f01b7bdd0c33e9a8024e995b7f0e67e332bc4aa0ec1280c7c28a24ba554772f8325e1badd1d

  • \Users\Admin\AppData\Local\Temp\3066812618.exe

    Filesize

    8KB

    MD5

    80f97c916a3eb0e5663761ac5ee1ddd1

    SHA1

    4ee54f2bf257f9490eaa2c988a5705ef7b11d2bc

    SHA256

    9e06f61d715b1b88507e3e70390721ab7ab35d70fe2df6edaaf0e565783e7d2f

    SHA512

    85e30cfc5c02543820f884602701986aa1e40d587da13c35b76b80dc95c0d6b3e18f5b0ad083fcfa3e9b92935306e4f8faec36ac28ac25e53fb03dcba4a092a6

  • \Users\Admin\AppData\Local\Temp\3225924532.exe

    Filesize

    84KB

    MD5

    161a475bfe57d8b5317ca1f2f24b88fa

    SHA1

    38fa8a789d3d7570c411ddf4c038d89524142c2c

    SHA256

    98fb81423a107a5359e5fc86f1c4d81ff2d4bc73b79f55a5bf827fdb8e620c54

    SHA512

    d9f61f80c96fbac030c1105274f690d38d5dc8af360645102080a7caed7bad303ae89ed0e169124b834a68d1a669781eb70269bf4e8d5f34aeef394dd3d16547

  • \Users\Admin\AppData\Local\Temp\962614259.exe

    Filesize

    21KB

    MD5

    837d57d98e4afcbe2aa6210240a02c8e

    SHA1

    56e96962a306a3d5bec484d13a88bcb516ebbca9

    SHA256

    c72da8d9d76f3ce218c1e072b6752590c7b9fd977acac39a2f0b88d906fa401d

    SHA512

    58a515bbe9626da5c233fef471278ee79fa517648ff4e95cf9fc221d1215afd6c91d32db0171397940f0935ff230706f1ef3c1284ab4bcdc3c3e1632a4277cbb