Analysis

  • max time kernel
    46s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 16:28

General

  • Target

    fd47f63587cf3fd1b359b0c4fd1ca1073e6bf560df9b4fb22ece942fb28c5b95.exe

  • Size

    2.5MB

  • MD5

    cc140e6c1847db7f37579e00d17ddf91

  • SHA1

    b88481e1f4834969bf7bd78d052be5faae87b115

  • SHA256

    fd47f63587cf3fd1b359b0c4fd1ca1073e6bf560df9b4fb22ece942fb28c5b95

  • SHA512

    150ab6d8528219658e7499cacab5cc643979f375a3b1381ba7fd201902741ce697f74ff518d7e09d926ccfe8ea6ae7bf7c740a6e561207d264ac609f0c5eb975

  • SSDEEP

    49152:h1OsEPHVmVhYwiLtKkKyW4nFU0I+NP/f7I3lMOaYjdxvL0Ha:h1OnHVl71RnFXINxvd

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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fd47f63587cf3fd1b359b0c4fd1ca1073e6bf560df9b4fb22ece942fb28c5b95.exe
    "C:\Users\Admin\AppData\Local\Temp\fd47f63587cf3fd1b359b0c4fd1ca1073e6bf560df9b4fb22ece942fb28c5b95.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1340
    • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\6DeGwjl0va2OgGR.exe
      .\6DeGwjl0va2OgGR.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 AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1768
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\GoSave\s1kZfSkPn9Oux4.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:532
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\GoSave\s1kZfSkPn9Oux4.x64.dll"
          4⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          PID:836

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\GoSave\s1kZfSkPn9Oux4.dat

    Filesize

    7KB

    MD5

    249df605ad34e616f5d82f2900552400

    SHA1

    589d3173d4bd3e80d3e782c4c1c22ce0b423b4d6

    SHA256

    000885d2194dd94288009ecb5ce243e5e3dc1a196ae3fc835bfcb88a911396a2

    SHA512

    2b8e8af36107351468d0bd96c95c4ef83a8aca3caf46708e733fd8e0bf4bcbdf5c89df8872fd5ea41958f558a6b6ce2a580a64aba9853e9ed45e3010aa8d12f9

  • C:\Program Files (x86)\GoSave\s1kZfSkPn9Oux4.x64.dll

    Filesize

    885KB

    MD5

    1a6b1013f17c1cdc6e98f82cd2568ea8

    SHA1

    c96e7bdba616743a5c05b08a342d89ed102376b0

    SHA256

    fa9dd2bd7850053b251c9b5f27f1ac43ad04abf85de61b1928b7c2d562d3290a

    SHA512

    10596f46c52ca3f50d6b3c7c894fff8b41f4fe920c6e5e0138cf7e95e85bfe1db8d5f1a63939832cd48cf29f571dd36de40ebb931fb9b14a106518ae4fc17ef9

  • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\6DeGwjl0va2OgGR.dat

    Filesize

    7KB

    MD5

    249df605ad34e616f5d82f2900552400

    SHA1

    589d3173d4bd3e80d3e782c4c1c22ce0b423b4d6

    SHA256

    000885d2194dd94288009ecb5ce243e5e3dc1a196ae3fc835bfcb88a911396a2

    SHA512

    2b8e8af36107351468d0bd96c95c4ef83a8aca3caf46708e733fd8e0bf4bcbdf5c89df8872fd5ea41958f558a6b6ce2a580a64aba9853e9ed45e3010aa8d12f9

  • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\6DeGwjl0va2OgGR.exe

    Filesize

    760KB

    MD5

    dcd148f6f3af3e3b0935c4fcc9f41811

    SHA1

    ee9bdbc7c568c7832d90b85921ab20030b6734cd

    SHA256

    f8689641199c6fc430121797965485d95abfbc430753e0e668817ab3b511a1e4

    SHA512

    34be8e60dc2decf8287a71516f359e80bb858ce52218dde1b01c821c9b95be38821f068b79b0da8dbe90865560e7ddab77b25e3971dda9be667fb3ae8f174886

  • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\6DeGwjl0va2OgGR.exe

    Filesize

    760KB

    MD5

    dcd148f6f3af3e3b0935c4fcc9f41811

    SHA1

    ee9bdbc7c568c7832d90b85921ab20030b6734cd

    SHA256

    f8689641199c6fc430121797965485d95abfbc430753e0e668817ab3b511a1e4

    SHA512

    34be8e60dc2decf8287a71516f359e80bb858ce52218dde1b01c821c9b95be38821f068b79b0da8dbe90865560e7ddab77b25e3971dda9be667fb3ae8f174886

  • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\ldbnmpkobdckpgmhdmfdhhlhbnjiplmp\LkVWmJH.js

    Filesize

    6KB

    MD5

    2a2ea1dca1b896a5fbb07989fb8d6ddb

    SHA1

    f6f3b88de6ffba780c9e8452647e693c5d3636b2

    SHA256

    438deacd429bc23871773165782bbc7d9a2ae9070b82805bd55b75435858d5d7

    SHA512

    4d641686bcc29f2b042f6695d6f05ef924d1fc5d6e962273f8cacbeaf9bcaab8ff915516505bfdab37a3fff97f19941e98ebb9c0c6c88234f4880ac3cc813db7

  • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\ldbnmpkobdckpgmhdmfdhhlhbnjiplmp\background.html

    Filesize

    144B

    MD5

    ee19c530e5d7d965c539dc164ec78c1d

    SHA1

    bb65c27e2a3618f5e5d293af74b7aa305a1a790c

    SHA256

    4d7bffdd412b1d707a32338390e03bccf74226e99af1db1e07838ac5198a7c6a

    SHA512

    570122e785728b79f43aac13cbb73787f6dc5a71152f1086f233f397bb709d30cce1d88904a4296f50449359da09ac5708a9c5dae5cdf4a447781f9ba36250f7

  • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\ldbnmpkobdckpgmhdmfdhhlhbnjiplmp\content.js

    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\ldbnmpkobdckpgmhdmfdhhlhbnjiplmp\lsdb.js

    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\ldbnmpkobdckpgmhdmfdhhlhbnjiplmp\manifest.json

    Filesize

    498B

    MD5

    640199ea4621e34510de919f6a54436f

    SHA1

    dc65dbfad02bd2688030bd56ca1cab85917a9937

    SHA256

    e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

    SHA512

    d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

  • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\s1kZfSkPn9Oux4.dll

    Filesize

    747KB

    MD5

    d949da968ea04ac3a7ddf0e300bb32be

    SHA1

    581d7d799c538b8e9e578cf57c420fb802d5a201

    SHA256

    5c4756451acf8622efa75639f9131ca8215c165e2ef21cc1ab7f8fee77db462b

    SHA512

    fd00e332af52646425f0d4032bb1bbfc85a44ff274bcf212f1264a29be546db4c1ceab7da32c70248a6baa2c55d2dff47dcb2ac441c783a1d9d1260c4685eb7e

  • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\s1kZfSkPn9Oux4.tlb

    Filesize

    3KB

    MD5

    5b503f1b4056c3d4fbf2d03f88e1adfe

    SHA1

    c8d659ea27bf0ca0bbfd46865d5796589bf9ef68

    SHA256

    231ef0fef77ab6c7fea053f64a9ce7f9e21646b868bfe391962262fc15c9bb6c

    SHA512

    229207201368d9674258389df19132070390f913aa5cc21b7567c515be5f5e0f07cdaa460d497ae355f27f00f7fc75538783d8890f6c9c0e861a7ecb8f520bdb

  • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\s1kZfSkPn9Oux4.x64.dll

    Filesize

    885KB

    MD5

    1a6b1013f17c1cdc6e98f82cd2568ea8

    SHA1

    c96e7bdba616743a5c05b08a342d89ed102376b0

    SHA256

    fa9dd2bd7850053b251c9b5f27f1ac43ad04abf85de61b1928b7c2d562d3290a

    SHA512

    10596f46c52ca3f50d6b3c7c894fff8b41f4fe920c6e5e0138cf7e95e85bfe1db8d5f1a63939832cd48cf29f571dd36de40ebb931fb9b14a106518ae4fc17ef9

  • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\[email protected]\bootstrap.js

    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

  • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\[email protected]\chrome.manifest

    Filesize

    35B

    MD5

    7b91162fd94881c7f6cb0654261166da

    SHA1

    930ad7adfc36b89c111a1402f3e3776b9219ded3

    SHA256

    68cb7ea27c76e76c2b54f27c47ba1e2bb9c4bd25a0369e810c815208112f344c

    SHA512

    72db856ed902602828a4afe496fba6b66824b450312407e417ddbfe0cc2eb70f973749a8d3f98eeed5138d62f939e6d60e24a00e405bf421721151bdcf884e16

  • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\[email protected]\content\bg.js

    Filesize

    9KB

    MD5

    344a5213f9d6d709bac34439d791f9ab

    SHA1

    af14a6e643197679552095be7433849c012165c5

    SHA256

    1dba606079459fba2d6a7ab60ca3bed93a0e44f0c9f75805fe4782558d97de51

    SHA512

    c38efc03423e2c2ffa0ab851d9bb3b7643240e366ad8ab592b63782584bb6734540dd88140cb521d45dbdbac90f82b01212f4023d36f2c23bfdfa1dd9e4cf542

  • C:\Users\Admin\AppData\Local\Temp\7zS258B.tmp\[email protected]\install.rdf

    Filesize

    591B

    MD5

    6bac9c1d4efbe41c70b52fab713f3b8b

    SHA1

    6f7cb5b02ef162004071b462e866238d8991fd1b

    SHA256

    472a82e875aaab6624a23470ce1ee8200cf700ee81354063556c9004639f4b8e

    SHA512

    ec8b635cbed9db3e9c02c98f00a0f1afda620d046a7ecedc46df73156262e24b97ec3d9864962425e36e84a1a3434c13462042b790cc813c5601bf75bfabd616

  • \Program Files (x86)\GoSave\s1kZfSkPn9Oux4.dll

    Filesize

    747KB

    MD5

    d949da968ea04ac3a7ddf0e300bb32be

    SHA1

    581d7d799c538b8e9e578cf57c420fb802d5a201

    SHA256

    5c4756451acf8622efa75639f9131ca8215c165e2ef21cc1ab7f8fee77db462b

    SHA512

    fd00e332af52646425f0d4032bb1bbfc85a44ff274bcf212f1264a29be546db4c1ceab7da32c70248a6baa2c55d2dff47dcb2ac441c783a1d9d1260c4685eb7e

  • \Program Files (x86)\GoSave\s1kZfSkPn9Oux4.x64.dll

    Filesize

    885KB

    MD5

    1a6b1013f17c1cdc6e98f82cd2568ea8

    SHA1

    c96e7bdba616743a5c05b08a342d89ed102376b0

    SHA256

    fa9dd2bd7850053b251c9b5f27f1ac43ad04abf85de61b1928b7c2d562d3290a

    SHA512

    10596f46c52ca3f50d6b3c7c894fff8b41f4fe920c6e5e0138cf7e95e85bfe1db8d5f1a63939832cd48cf29f571dd36de40ebb931fb9b14a106518ae4fc17ef9

  • \Program Files (x86)\GoSave\s1kZfSkPn9Oux4.x64.dll

    Filesize

    885KB

    MD5

    1a6b1013f17c1cdc6e98f82cd2568ea8

    SHA1

    c96e7bdba616743a5c05b08a342d89ed102376b0

    SHA256

    fa9dd2bd7850053b251c9b5f27f1ac43ad04abf85de61b1928b7c2d562d3290a

    SHA512

    10596f46c52ca3f50d6b3c7c894fff8b41f4fe920c6e5e0138cf7e95e85bfe1db8d5f1a63939832cd48cf29f571dd36de40ebb931fb9b14a106518ae4fc17ef9

  • \Users\Admin\AppData\Local\Temp\7zS258B.tmp\6DeGwjl0va2OgGR.exe

    Filesize

    760KB

    MD5

    dcd148f6f3af3e3b0935c4fcc9f41811

    SHA1

    ee9bdbc7c568c7832d90b85921ab20030b6734cd

    SHA256

    f8689641199c6fc430121797965485d95abfbc430753e0e668817ab3b511a1e4

    SHA512

    34be8e60dc2decf8287a71516f359e80bb858ce52218dde1b01c821c9b95be38821f068b79b0da8dbe90865560e7ddab77b25e3971dda9be667fb3ae8f174886

  • memory/532-73-0x0000000000000000-mapping.dmp

  • memory/836-77-0x0000000000000000-mapping.dmp

  • memory/836-78-0x000007FEFB741000-0x000007FEFB743000-memory.dmp

    Filesize

    8KB

  • memory/1340-54-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

    Filesize

    8KB

  • memory/1768-56-0x0000000000000000-mapping.dmp