Analysis

  • max time kernel
    57s
  • max time network
    66s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 07:40

General

  • Target

    4a7854848cdf4edd3ccb663489644b0dbbc323960869968f4fbedb358ba34202.exe

  • Size

    2.5MB

  • MD5

    d7d492a9c1f94b971d60e072d20486ef

  • SHA1

    31698354bb9fe6ae87ac8191f1fff665afdee364

  • SHA256

    4a7854848cdf4edd3ccb663489644b0dbbc323960869968f4fbedb358ba34202

  • SHA512

    f13ec6521bec4e8d813d1dea262bf4df728a139631b7974f48d2d63cd0ae3f5fc80070f554018190f88de5f9c798d0f5fff47dda91208d60a0f43cdb5aaf5e6a

  • SSDEEP

    49152:h1OszMN6wdBh5N5Z4E8PuXitzuS4xBoYfzdgZ6YLFz5i4U/jA0GQ3f:h1OyMNtdBZouS4xK/hQv

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\4a7854848cdf4edd3ccb663489644b0dbbc323960869968f4fbedb358ba34202.exe
    "C:\Users\Admin\AppData\Local\Temp\4a7854848cdf4edd3ccb663489644b0dbbc323960869968f4fbedb358ba34202.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:764
    • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\WjzYz7qMaVpgU43.exe
      .\WjzYz7qMaVpgU43.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:760
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\GoSave\XfMYeoyolHb4X7.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1764
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\GoSave\XfMYeoyolHb4X7.x64.dll"
          4⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          PID:1372

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\GoSave\XfMYeoyolHb4X7.dat

    Filesize

    7KB

    MD5

    3adbfd25d57d1f5fb1915ab710cfe13c

    SHA1

    3031ea4e65a0b1173b755a1e3df0f29439afed69

    SHA256

    8f6bd3d37ba71bb744dc634b3836f2f4046e2c719d0eda5590ae52c2c29dc349

    SHA512

    7f191bc9dfd52ab409d238710df61e65f45cda2a325d5338382b57e05a33314c45b06530aabf6e13ae70cc546fb8505b85930154f8d2b2703364d7b00fed3eaf

  • C:\Program Files (x86)\GoSave\XfMYeoyolHb4X7.x64.dll

    Filesize

    878KB

    MD5

    ec4e3ee93c7c6caf8e77b2f2b910c82e

    SHA1

    b8c90bd001c371fadd683a9106b692a0dc6706c8

    SHA256

    ac086b67b1485da29052d256365a25dc9de3082bce7f55b64582152c00aac942

    SHA512

    a3ca51f000cd9092213c5e263f5f23be8deba913ad4f77a8a9b9239fe9807ef10224e26e16437a5862de4ccabda17d37e81d181882ba2ba5bb2515970d36a6c9

  • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\WjzYz7qMaVpgU43.dat

    Filesize

    7KB

    MD5

    3adbfd25d57d1f5fb1915ab710cfe13c

    SHA1

    3031ea4e65a0b1173b755a1e3df0f29439afed69

    SHA256

    8f6bd3d37ba71bb744dc634b3836f2f4046e2c719d0eda5590ae52c2c29dc349

    SHA512

    7f191bc9dfd52ab409d238710df61e65f45cda2a325d5338382b57e05a33314c45b06530aabf6e13ae70cc546fb8505b85930154f8d2b2703364d7b00fed3eaf

  • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\WjzYz7qMaVpgU43.exe

    Filesize

    765KB

    MD5

    21c7e6ab35acdb8d15ac0590900c5206

    SHA1

    bd696ab0d1806c5492b4444d96fe272f217f4058

    SHA256

    314c44ac357c692c66516271e02fe280e9fc6d030a7172f2379c81fa383d44ec

    SHA512

    775636d7ec02398e32463ceaa7e1b18fe20689ed75d9c731b37b83f4c3ce828d2d2274d2f75d4f2c25133775969864467eff69b5fbf40e286fbfca6bdee1d3dd

  • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\WjzYz7qMaVpgU43.exe

    Filesize

    765KB

    MD5

    21c7e6ab35acdb8d15ac0590900c5206

    SHA1

    bd696ab0d1806c5492b4444d96fe272f217f4058

    SHA256

    314c44ac357c692c66516271e02fe280e9fc6d030a7172f2379c81fa383d44ec

    SHA512

    775636d7ec02398e32463ceaa7e1b18fe20689ed75d9c731b37b83f4c3ce828d2d2274d2f75d4f2c25133775969864467eff69b5fbf40e286fbfca6bdee1d3dd

  • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\XfMYeoyolHb4X7.dll

    Filesize

    746KB

    MD5

    8a167580cd1dd37bd496c810951e265c

    SHA1

    64dd7babc6b7a2614306cc68929d38cc5b6ae0b2

    SHA256

    73cdc61ec4b161fbc4017ef7b8ed73e593439875608c336d57098bac796912ec

    SHA512

    28fd5a1e3554976eddeace6772236b22996448207bab74bcdf6acca2e7880293893f4ecfa5ea3ef54fd073fb226de1de1e6c708e5acd3a51d3878b1fe54ba27f

  • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\XfMYeoyolHb4X7.tlb

    Filesize

    3KB

    MD5

    6913bf1ba01b10787f0b5b1d8788071a

    SHA1

    9a1fe110cd29b99508385b1b1e5cb83e6e2b10ec

    SHA256

    40b0d7a3f86ad964a12d142c9544d015e252e98e2ebab0895ee9df6f3946110c

    SHA512

    c0410368dd71668a1e34bc81536bc2e8a1b19f6c51455f87205f6f2bf0c9ec04a8994c39c4edbd137c04fd1871b5dc19f7c82a9c83a814c17e4a2dd160cb1b1d

  • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\XfMYeoyolHb4X7.x64.dll

    Filesize

    878KB

    MD5

    ec4e3ee93c7c6caf8e77b2f2b910c82e

    SHA1

    b8c90bd001c371fadd683a9106b692a0dc6706c8

    SHA256

    ac086b67b1485da29052d256365a25dc9de3082bce7f55b64582152c00aac942

    SHA512

    a3ca51f000cd9092213c5e263f5f23be8deba913ad4f77a8a9b9239fe9807ef10224e26e16437a5862de4ccabda17d37e81d181882ba2ba5bb2515970d36a6c9

  • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\[email protected]\bootstrap.js

    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

  • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\[email protected]\chrome.manifest

    Filesize

    35B

    MD5

    d4a15a7856c2633bda099271585bef70

    SHA1

    f963f7eebac63f4a1b70ed24c2416b1e6929058a

    SHA256

    d814839f936ae62fd2f50ea0b4aa63bd6531fd8db2deebf15943b60c81b3964b

    SHA512

    bc6e07292d2f35d4b3e448970cab3e00db723a3dd9f8e2c68edae8c09831195fea80d77486599187dac10320f12391d77d8716ac73e8e94d3ab2b77afb042b5c

  • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\[email protected]\content\bg.js

    Filesize

    8KB

    MD5

    efb0d7b600bf95dab2ccbba2ae070c06

    SHA1

    6676368647b7b944fcc81aa630c44c3fc24416ed

    SHA256

    333040e4c3c2814131044d9aae60881f15f2bcc94b15c02c22fc7a3c0b1d9b1a

    SHA512

    b21748ecbb63da65f627ff448f67562926ae7467d87034dc54c26d076175b8fc5cf18521d80603d1ec5bf7e3e935d6301ddf3a36c41c146ab95fadae3b1e8c20

  • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\[email protected]\install.rdf

    Filesize

    592B

    MD5

    2863c78d21e4d995819b36d6a3137bd2

    SHA1

    13a95c2f81366a0231ca47df2e2d18242fc864ed

    SHA256

    7438558dcc7e3ce0cee66963b95fec7d0de8b847bc5673b48b6eb41aadc3fff2

    SHA512

    935b6ad5ea4c2a76012c445f0d4a601368bd3695d59fbfd64b0f5efd5c9ef7b22cad3c3ac353753ab36eff069a47af656efb4be8800fea5f7f8366941dc1bc9f

  • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\ijcmmdddmlppiicfaikgfnobhbnipeim\MwjwPpH.js

    Filesize

    6KB

    MD5

    7dd038286b8c051c2fd112af37d1bf4f

    SHA1

    bbe2ac56eb29a1c2cc6c42a208a3255e698c323e

    SHA256

    05796aa615659a229ef109c5b4b612763cf902c8966755a2dd9db7a1f25ad9a7

    SHA512

    042226e5b8566d3aa3a7b882e014453927421908ac3d4be34a93cb0f79184fb6bb78348327b6f31e9982875ef2e12e3b5ff80d0e8736be3314dd9d9e9be1b6be

  • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\ijcmmdddmlppiicfaikgfnobhbnipeim\background.html

    Filesize

    144B

    MD5

    3c4394af7a7dafc30aad758c939029ba

    SHA1

    f6fc4493cac79f0f46bdee4298c6f5f705ade730

    SHA256

    70533c0a035a5107d5d8627b8a1dada98a64f941e1c5d8714ed5bbfc17ecc02e

    SHA512

    9e153a1fded463886df02be238fca7876299b7d997c2122e12cde81ac7f487690c610cdb815fd09dec8834da4c6db9eb579219120300a3a1d2a4ef624a76ae3a

  • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\ijcmmdddmlppiicfaikgfnobhbnipeim\content.js

    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\ijcmmdddmlppiicfaikgfnobhbnipeim\lsdb.js

    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\ijcmmdddmlppiicfaikgfnobhbnipeim\manifest.json

    Filesize

    498B

    MD5

    640199ea4621e34510de919f6a54436f

    SHA1

    dc65dbfad02bd2688030bd56ca1cab85917a9937

    SHA256

    e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

    SHA512

    d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

  • \Program Files (x86)\GoSave\XfMYeoyolHb4X7.dll

    Filesize

    746KB

    MD5

    8a167580cd1dd37bd496c810951e265c

    SHA1

    64dd7babc6b7a2614306cc68929d38cc5b6ae0b2

    SHA256

    73cdc61ec4b161fbc4017ef7b8ed73e593439875608c336d57098bac796912ec

    SHA512

    28fd5a1e3554976eddeace6772236b22996448207bab74bcdf6acca2e7880293893f4ecfa5ea3ef54fd073fb226de1de1e6c708e5acd3a51d3878b1fe54ba27f

  • \Program Files (x86)\GoSave\XfMYeoyolHb4X7.x64.dll

    Filesize

    878KB

    MD5

    ec4e3ee93c7c6caf8e77b2f2b910c82e

    SHA1

    b8c90bd001c371fadd683a9106b692a0dc6706c8

    SHA256

    ac086b67b1485da29052d256365a25dc9de3082bce7f55b64582152c00aac942

    SHA512

    a3ca51f000cd9092213c5e263f5f23be8deba913ad4f77a8a9b9239fe9807ef10224e26e16437a5862de4ccabda17d37e81d181882ba2ba5bb2515970d36a6c9

  • \Program Files (x86)\GoSave\XfMYeoyolHb4X7.x64.dll

    Filesize

    878KB

    MD5

    ec4e3ee93c7c6caf8e77b2f2b910c82e

    SHA1

    b8c90bd001c371fadd683a9106b692a0dc6706c8

    SHA256

    ac086b67b1485da29052d256365a25dc9de3082bce7f55b64582152c00aac942

    SHA512

    a3ca51f000cd9092213c5e263f5f23be8deba913ad4f77a8a9b9239fe9807ef10224e26e16437a5862de4ccabda17d37e81d181882ba2ba5bb2515970d36a6c9

  • \Users\Admin\AppData\Local\Temp\7zSDC9A.tmp\WjzYz7qMaVpgU43.exe

    Filesize

    765KB

    MD5

    21c7e6ab35acdb8d15ac0590900c5206

    SHA1

    bd696ab0d1806c5492b4444d96fe272f217f4058

    SHA256

    314c44ac357c692c66516271e02fe280e9fc6d030a7172f2379c81fa383d44ec

    SHA512

    775636d7ec02398e32463ceaa7e1b18fe20689ed75d9c731b37b83f4c3ce828d2d2274d2f75d4f2c25133775969864467eff69b5fbf40e286fbfca6bdee1d3dd

  • memory/760-56-0x0000000000000000-mapping.dmp

  • memory/764-54-0x0000000075CF1000-0x0000000075CF3000-memory.dmp

    Filesize

    8KB

  • memory/1372-77-0x0000000000000000-mapping.dmp

  • memory/1372-78-0x000007FEFBAF1000-0x000007FEFBAF3000-memory.dmp

    Filesize

    8KB

  • memory/1764-73-0x0000000000000000-mapping.dmp