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Analysis

  • max time kernel
    122s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    18/08/2024, 12:03

General

  • Target

    update.exe

  • Size

    16KB

  • MD5

    af87d850a15f1fbde5e824116e1f174b

  • SHA1

    9d704094e5f7386104dc5b7b155768fbac9fc0f9

  • SHA256

    11863fecf89dd0fd635456d680fa4a268d9f63dc5a76093fbb79c6686d5ae17b

  • SHA512

    b0962ca6b3f96defd0b34c723bf13ec35cbda1ed5551ac41ee0ef04fffb799284ad7e4324c856443f14511b7ee83dc2bdc5588c6d6a87050ac4344c4d08c13b3

  • SSDEEP

    384:K0sAA+LPsuTnVshZ9hA+b3Qj5MRjVpV/QBOIjLbd:KaV/+b3N3pV/yb

Score
9/10

Malware Config

Signatures

  • Renames multiple (1615) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops file in Drivers directory 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\update.exe
    "C:\Users\Admin\AppData\Local\Temp\update.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2868
    • C:\Users\Admin\AppData\Local\Temp\update.exe
      "C:\Users\Admin\AppData\Local\Temp\update.exe" --foodsum
      2⤵
      • Drops file in Drivers directory
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      PID:2160

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Microsoft Office\Office14\mscss7cm_es.dub.abc

    Filesize

    2KB

    MD5

    0af9489aecf4d750bef8d0c4a9fdf46c

    SHA1

    e01ed2bce59c0f4d5515fb9afabc45efc94364a5

    SHA256

    b20e80164b74fa31eeff96fdc89d3f387bb09455b27d7a98ba564b940254f8a1

    SHA512

    46c7a63f4fa79cb151891022ada657eb0e5eddde8d29bd143b503f2870b7ef6265f31de08f7b7cae141d8369bfa4608219d5ae3bc8d664d40db41b86b8b2b304

  • C:\Program Files\DVD Maker\es-ES\WMM2CLIP.dll.mui.abc

    Filesize

    8KB

    MD5

    4b66cf2e8620f626f05af7ca70e1807e

    SHA1

    464bc34f5bc5694f83e3bed5941f082a22cd3099

    SHA256

    7218c6fc3c081413d42591d317f8684bb8de2beb94d56c9b4f04bc4164e68581

    SHA512

    c11bb625b529fad395966078ddf9039783e379ed6001e076c007f7cee7066c4dd247130bd4055ac5b89d9563748827b2be38421e9ddf66337bb850bcce217253

  • C:\Program Files\Microsoft Office\Office14\URLREDIR.DLL.abc

    Filesize

    672KB

    MD5

    eeb8e3c2b360612561a939cd0bd4b365

    SHA1

    562983ff0f11daa9927fc0546ccfc1b383d8887a

    SHA256

    3483e4668e2133f5aac7918bade7b4f317fdd7ea52cd04f703fc1f0b4edde7e4

    SHA512

    3c47a83fb676e9213d8c9aa3b086b0c36bcf1a928f461a6acc860823a463f1eab396dba6118d2255b36fbcff3562d52790cc30073fa0fcfa7359621b7f03645c

  • C:\Users\Admin\AppData\Local\Temp\Cab208D.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar20AF.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\Desktop\PublishConvertFrom.mpg.abc

    Filesize

    823KB

    MD5

    3a8649e94ae44d1d3e96e6ab2dd3561a

    SHA1

    82ce26af7e2b56a61563f58f8265148f77a782e1

    SHA256

    5e00eb2de5a30a0a41a03b7a5f3bf7f6a039ec514118f528e039779c033788d6

    SHA512

    6ddb648515042e80a189cb5b3ec6d773f797144601dc95be372b0dd0435c7ffa97e50d0828e73e143613863488b9b56b8ff9f53853bf311415d264dea7559740

  • C:\Users\Admin\Documents\README.txt

    Filesize

    111B

    MD5

    92624a93579f4c479a34ef4df48ad394

    SHA1

    05003f8abd4272b3cfe681de036be7b683a189e2

    SHA256

    da608ad13019c8f04f84aae2fc67621cb91ec6f52c0412cc9e9a3feb9a37134d

    SHA512

    4a3e540f95fc7135dbd57cff693f69b1c16ede2a34732bd6b231374e291931670cf0b439731c0fc03ea6a4a98a60b66bdbd9729a19d95e1e8ddb719bbc17c36c

  • C:\Windows\Cursors\arrow_rl.cur.abc

    Filesize

    1KB

    MD5

    851f7c1e3cef08accfc7b06b5a880281

    SHA1

    f3e2e2f296f9a8e8595eb16d5d8e8715307b2512

    SHA256

    83134da2d60c96984e878d44b88a5b12a8dd907a262c76c56a81a142cbd363f0

    SHA512

    2a64fd643097ba34f1a2dab38f1cbdb7a2d20f32661ea48ec8db74fbd20a682209062c43bf8072a07f162fb10fbcd479042a3fa36ab52ce06f0e8590fc14145e

  • C:\Windows\Fonts\msjhbd.ttf.abc

    Filesize

    13.8MB

    MD5

    b9b120f37133a884b323016d180008dc

    SHA1

    dac054788b5f366332a915c59687fda6a84774f7

    SHA256

    8c4cec84855d47951d8074d6dd6607a11e9b06a046e9b05b2cd955c3e926b382

    SHA512

    12a8c37dfd90b46a3d69de3cf84688b9c81f166099e74b2e13ffbfe06a6860cfa2a3d640f89631e87c14499aaacb31583e99b686fdb79110a79d53007d4f4b89

  • C:\Windows\SysWOW64\de-DE\hid.dll.mui.abc

    Filesize

    2KB

    MD5

    1b5c9fdba43948f84fb602a22e7b1ceb

    SHA1

    a0027325c138faf6a80f4d7f96f50fdecf21d4d4

    SHA256

    2354e12fb1833ff7381fb5dd2ceb18e73b663f9875aa4dff4da421b52d22538a

    SHA512

    fa80e252968b6ed8872380226fe25c434098b8b270a9d1db3f84217d359a3594de2b499d63102f7afae4e7d0445d3dd4d482184a5a51fe2d95b95fad5260dcbc

  • C:\Windows\SysWOW64\en-US\eappcfg.dll.mui.abc

    Filesize

    2KB

    MD5

    a02e29f8372e1c03b3fab282443fb74c

    SHA1

    ee6125ae7caf8ac67ab65b3eb79d6bfbec118a5b

    SHA256

    acee200c94cf6c6df55f25332516d7cdd8f81347eff4f6e912552cb9097cb15b

    SHA512

    a4ffa5ae6c2af83e41279aeb52dac983e1dcd8bf2a716c46a9d5019917e1f4702fafe12cfa54632dc44d587eac35dfb28c32658001de454e2a0141433aab46e1

  • C:\Windows\SysWOW64\en-US\mciqtz32.dll.mui.abc

    Filesize

    3KB

    MD5

    18920cf1faf6e364c7a4d3c09e085f73

    SHA1

    0db1f786f8389e8202c3ed01fe88f255b31cf60b

    SHA256

    beb19f21cfe95e4404271dd8340ab72bf3671f63e7300053939063cd1e8903e8

    SHA512

    a2bf3ffe39474fac2a51f32277758333b797622a83d72b564e61d147fc9d2154d7b3b9d25adf761fb3ca9ed4aaab93da864e560af656543bd6262ec9de75d3eb

  • C:\Windows\SysWOW64\en-US\nsisvc.dll.mui.abc

    Filesize

    2KB

    MD5

    6421114fa13d59a3553ab88302fea34d

    SHA1

    f5e4eebb0df14653dd033e31da060cac4333d2e7

    SHA256

    872829678256c632afd8c05eca8990b88b78768224b51cadd1288f11c8708c17

    SHA512

    c806a7a2c92c4f351b5c00b3680ea57aee89f6c57dde0b661c4b918553ded8c4b6757bc95e282871ddcf3863b036eb17732e81f034d37404d8ee8212dc3fe654

  • C:\Windows\SysWOW64\inetmib1.dll.abc

    Filesize

    51KB

    MD5

    dbf32e6c84a76c9f5eb734b03b3ccc41

    SHA1

    3e12ac21859484e4a208b4fc1d23feaa257b56fd

    SHA256

    ac1af274e36af3dc89048d38a5ff1a8a49d2fabf3fa7b3462be4dfc45451ed2c

    SHA512

    df00f7ead7aa98005dcab967f834f9b308356cb6408d7ea2a78769cdb34bb29d4d7c9d1c6f61a75a2202c3d5343cc029c1d642bf7edef9998a714a19bb78c938

  • C:\Windows\SysWOW64\it-IT\certenc.dll.mui.abc

    Filesize

    2KB

    MD5

    eec04fbf2e5df37a87988e06ffe65a43

    SHA1

    371153fda533802b864e053d285333abd79a7322

    SHA256

    5dd405b9e5eb70f651ca63ef75057e45eb00f09173936fdfdcbcec8f90d08bed

    SHA512

    93cf51b2b2c075197822508e9a625a97138d9230dc1ebbdc2b6481ce86753c116fc94665c2b9a91ac87dae3ea6ee5409711297fcb94d14a4ec26078cef073d19

  • C:\Windows\SysWOW64\it-IT\dhcpcsvc.dll.mui.abc

    Filesize

    2KB

    MD5

    d0cd91fc8b973d3b50228a14e8c6f0ef

    SHA1

    6884f3e11ad70cf4cf8175ae1104da4ab819cca2

    SHA256

    0721f633224b28872aee9672c650db2a98f4f4c50214e30ca45de47ac517be21

    SHA512

    c4be9f058ab146c611adcc04e755b5cb64506d944f93ad490b9b18d955f9e05c40f26839b3935e55ac13a2b5f15d29715fc4e33301395e128dc575a01d66bda7

  • C:\Windows\SysWOW64\it-IT\mscms.dll.mui.abc

    Filesize

    19KB

    MD5

    e53df2dd2f5ac0f1ee5df6d3ab25956c

    SHA1

    b18433935c158d68db447ed8851dcc654f7a5189

    SHA256

    801420b0ee81d82c62b7cfd513a9541df150faf248f65fc7730b499c70af722b

    SHA512

    72adc123df7a79882fb80366022add1d561df4696ce433a62229736fe33412208805d6c2911aa57a8a6f70eb8b259e3952cfdca63812c2c3737f3e9f004653f2

  • C:\Windows\SysWOW64\it-IT\qdv.dll.mui.abc

    Filesize

    4KB

    MD5

    1047f02de3318d4ff807922120e163df

    SHA1

    44043ed86e7eecd7a2387d88de049e4761165d3f

    SHA256

    c5884caf20bef16a99a2ec8a5dd17c46c7a84a06ed419c4247cbd9b3e6d16b37

    SHA512

    04006ff18007c848ef87ba7380d082a8a1332b74812ea96809a0c6f8326ddb137ab37a46680342f3451739034d6eee623aaa69328c448eec4a4468972532576a

  • C:\Windows\SysWOW64\it\AuthFWWizFwk.Resources.dll.abc

    Filesize

    68KB

    MD5

    0adac6c93d26af43a245e1b06823c531

    SHA1

    d6f55575d82a3f62186208d6cf69e4afde8d32db

    SHA256

    4bf34be7dccc8ce67384b5d93fa071ba0fae512f026cdcdfdcdefd30052bb1a4

    SHA512

    a8f3d93048146f10803fcd0e76cbf66d5c88bc82b6ed9c7c0ab0b4c092d83f20ad3c8319bebad68226289b269b2f6e5979a58bb3cf71a888aba5105a5061496d

  • C:\Windows\ehome\es-ES\MediaCenterWebLauncherRes.dll.mui.abc

    Filesize

    3KB

    MD5

    8a409d7b04997d61e75747df94921f22

    SHA1

    22d32228b67369247bf4626ca4e249574567643e

    SHA256

    5556669d791cb3bd3ba4a49851844b89eb363b6f222f19d5eaded0e35139b020

    SHA512

    50472f2c52d33b01f7bb840b42fe7504562d81bbe46c1f4b5831e9f1a38f487768715bc3f78947fe547158ab99fc6a5020068eab5bbb218c91411d4af6126ac3