Analysis

  • max time kernel
    97s
  • max time network
    101s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 19:29

General

  • Target

    c6b0d5b9cbd3d7add56c66f78c528ffcb503b4c97b480fb8716de25df1087b62.exe

  • Size

    2.5MB

  • MD5

    9e0ec9f4bf3944a5866244c1044fbb43

  • SHA1

    a36f1eb0260df33db182dace8179e81dba8f687c

  • SHA256

    c6b0d5b9cbd3d7add56c66f78c528ffcb503b4c97b480fb8716de25df1087b62

  • SHA512

    61141b96988cf194c265162a70a3e921871fbc508049eac0a08b9c52dd415f1effefa777dbc8bf24c326bf11f411f3ee7b8c83f2e02970a4a716c26f7ee86af5

  • SSDEEP

    49152:h1OsTCpYO/dJJDHhs6oxRkNfehWfNs4VGufZ9JODSTz4bkI:h1OHly7kNfrNq4I

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops Chrome extension 3 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 11 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c6b0d5b9cbd3d7add56c66f78c528ffcb503b4c97b480fb8716de25df1087b62.exe
    "C:\Users\Admin\AppData\Local\Temp\c6b0d5b9cbd3d7add56c66f78c528ffcb503b4c97b480fb8716de25df1087b62.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\RFehcJDMwRJPBmf.exe
      .\RFehcJDMwRJPBmf.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:620
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\GoSave\95bOgjstumuOmu.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1164
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\GoSave\95bOgjstumuOmu.x64.dll"
          4⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          PID:1864

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Browser Extensions

1
T1176

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\GoSave\95bOgjstumuOmu.dat
    Filesize

    7KB

    MD5

    91d69fb2d702cab8fd48db88c80b9353

    SHA1

    59a23f326e7a4158d02a08808a24d7fd30546f97

    SHA256

    0f4b78a51bdda583840f36112b0b8a86d14bddda4c4cdae4d0eca13a55f26059

    SHA512

    2f8b87e7af568de60e1ef140a3d72acd8db45634511efc14975cbe41477d6b1239e7b4b021aaf3fe21830d1c6bbedd7dd550d98650b70d80f9f1de673da5939b

  • C:\Program Files (x86)\GoSave\95bOgjstumuOmu.x64.dll
    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\0@KSNFlkgw.edu\bootstrap.js
    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

  • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\0@KSNFlkgw.edu\chrome.manifest
    Filesize

    35B

    MD5

    6f73e7f7d9291bddb094dec89b1e753c

    SHA1

    4f6df88ebf8a3c0f92a3f186ca2c1c6af2847aec

    SHA256

    59967648ec4ce9b0ed98e55120adbf25cbc44ac32712eb2e1710024100fa0d8f

    SHA512

    f37a70abd225b1691a45c686c3ca66b68987da9cca203d93ddeeafbd49dbf2d054f92a3eadc26fc9d2884a768ea8c899bde7e173126e0fc387c51711ddacc62b

  • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\0@KSNFlkgw.edu\content\bg.js
    Filesize

    9KB

    MD5

    2b5f1ee8e99f6e793b598e50755d1737

    SHA1

    f076a676fd34c58e86f5fb571554c3c0284776e3

    SHA256

    6f19fd77fe4bcf2c7cfd7dcb69a086ba6fee31f2159201d93c7404856e9ffd0e

    SHA512

    e379b36bf15f259dd857bb7c461e21969afa1a7c0bbff25df38063a35f07b1ea9cfde1b44bce4b3860c9b5fb57dc594262238477146446a78474bf1e440ac225

  • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\0@KSNFlkgw.edu\install.rdf
    Filesize

    596B

    MD5

    03fa3c28ad56b46cc8207b7e042c6ee6

    SHA1

    4c5d74b07ef8bcd0924b0203381dbbfe40639598

    SHA256

    139c25d43cbfffd4bbead7bb37a4c448c6507520a9ab6bd4b2ffc49feb0ac8bb

    SHA512

    c6cec32733c0b946fe7a6b967c99014a776f04e4b38856f023270eaea3fd5a4941b1e67e0032d631a06bce984de86be3c6cf72915f6b26ee3fc88ece67ad686e

  • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\95bOgjstumuOmu.dll
    Filesize

    738KB

    MD5

    49961c7c9a7aef57f49adf50d1c810f6

    SHA1

    fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

    SHA256

    c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

    SHA512

    8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

  • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\95bOgjstumuOmu.tlb
    Filesize

    3KB

    MD5

    e3ab22d8beac0180520ab5289a64419b

    SHA1

    1456ba2c78b293e5a80185fefdf05f5dbe424937

    SHA256

    0d3342857b67678dd76e6a24e137f0d75ba399bb48bf5095d7e4f7dfa0bbe416

    SHA512

    c04163026ffa1c6fab34b4fdbf23702148c7c2a31dd356d26f9541027db078b6433aff3a5f749a209a3acbcf3a853a9b5f77984540e21be1f823ce92bcbfc4bf

  • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\95bOgjstumuOmu.x64.dll
    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\RFehcJDMwRJPBmf.dat
    Filesize

    7KB

    MD5

    91d69fb2d702cab8fd48db88c80b9353

    SHA1

    59a23f326e7a4158d02a08808a24d7fd30546f97

    SHA256

    0f4b78a51bdda583840f36112b0b8a86d14bddda4c4cdae4d0eca13a55f26059

    SHA512

    2f8b87e7af568de60e1ef140a3d72acd8db45634511efc14975cbe41477d6b1239e7b4b021aaf3fe21830d1c6bbedd7dd550d98650b70d80f9f1de673da5939b

  • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\RFehcJDMwRJPBmf.exe
    Filesize

    772KB

    MD5

    5ed7019dcd0008dbcd8e54017b8c7dd9

    SHA1

    7e4457da2ff06c2170bad636c9eb7c1bb436fd06

    SHA256

    7f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7

    SHA512

    10cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db

  • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\RFehcJDMwRJPBmf.exe
    Filesize

    772KB

    MD5

    5ed7019dcd0008dbcd8e54017b8c7dd9

    SHA1

    7e4457da2ff06c2170bad636c9eb7c1bb436fd06

    SHA256

    7f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7

    SHA512

    10cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db

  • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\bneoaejoogaidofpheefiocciiomkkke\background.html
    Filesize

    140B

    MD5

    bedc8cde1cc497c959d906825e056d6f

    SHA1

    d9765ce367cf188c199ec4938005e18952bf565f

    SHA256

    517eed244a87602aa6541640b2acc142d61c41ed5294a9bfd39e2b73f9f74727

    SHA512

    c88d471303902b8363529b5191432d5a5c0f3daf6496b2ba57fe8218da7e5a4ed49faab04dd39280b5e0073b18afb4c1521fc23a6f95ca0d19e94161be0c6d06

  • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\bneoaejoogaidofpheefiocciiomkkke\bpi.js
    Filesize

    6KB

    MD5

    bae567ba31fda4c3d12b732702a3ed04

    SHA1

    ff6a3232093837ad4b11db773893c2e226add29a

    SHA256

    09c0c83b2094493cdef6d87ff729b928a13c2770de0b5f057399b4387b6df5b0

    SHA512

    dbc71bcaaad0c1125294c308de69ade3d067d707df8908bc816f819a86b009d6a49b525c3734fd876300e205a11d29828d0f97d13f7c34f582f2781c47f6bbb9

  • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\bneoaejoogaidofpheefiocciiomkkke\content.js
    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\bneoaejoogaidofpheefiocciiomkkke\lsdb.js
    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\bneoaejoogaidofpheefiocciiomkkke\manifest.json
    Filesize

    498B

    MD5

    640199ea4621e34510de919f6a54436f

    SHA1

    dc65dbfad02bd2688030bd56ca1cab85917a9937

    SHA256

    e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

    SHA512

    d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

  • \Program Files (x86)\GoSave\95bOgjstumuOmu.dll
    Filesize

    738KB

    MD5

    49961c7c9a7aef57f49adf50d1c810f6

    SHA1

    fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

    SHA256

    c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

    SHA512

    8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

  • \Program Files (x86)\GoSave\95bOgjstumuOmu.x64.dll
    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\GoSave\95bOgjstumuOmu.x64.dll
    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Users\Admin\AppData\Local\Temp\7zSDBC0.tmp\RFehcJDMwRJPBmf.exe
    Filesize

    772KB

    MD5

    5ed7019dcd0008dbcd8e54017b8c7dd9

    SHA1

    7e4457da2ff06c2170bad636c9eb7c1bb436fd06

    SHA256

    7f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7

    SHA512

    10cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db

  • memory/620-56-0x0000000000000000-mapping.dmp
  • memory/1164-73-0x0000000000000000-mapping.dmp
  • memory/1724-54-0x00000000757B1000-0x00000000757B3000-memory.dmp
    Filesize

    8KB

  • memory/1864-77-0x0000000000000000-mapping.dmp
  • memory/1864-78-0x000007FEFB851000-0x000007FEFB853000-memory.dmp
    Filesize

    8KB