Analysis

  • max time kernel
    58s
  • max time network
    98s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 04:04

General

  • Target

    1f9e7de02978388d46014a7be0446d29e3f06d2a1fa01cbfe90beb6c2e412235.exe

  • Size

    2.7MB

  • MD5

    75978bda1f9d57c316358ed7f87e6172

  • SHA1

    2f3386e5ff8282aa2e27e88d3c0de37770059195

  • SHA256

    1f9e7de02978388d46014a7be0446d29e3f06d2a1fa01cbfe90beb6c2e412235

  • SHA512

    82504407a77222382de918a58ad59cd5c60ef85b2819f9adf552384dc761e959b53dbee271bfa9212bde3fe7ad0d114422588f9b656349ace047a13f73add812

  • SSDEEP

    49152:6zfLl4rZeNXUVv9PnbhQFWBHxtRYrM7dbsCXTh:C4rZPveyTarM7dD

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Registers COM server for autorun 1 TTPs 4 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 8 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
  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1f9e7de02978388d46014a7be0446d29e3f06d2a1fa01cbfe90beb6c2e412235.exe
    "C:\Users\Admin\AppData\Local\Temp\1f9e7de02978388d46014a7be0446d29e3f06d2a1fa01cbfe90beb6c2e412235.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:948
    • C:\Users\Admin\AppData\Local\Temp\3d033155\i1TIlN664GIHYHH.exe
      "C:\Users\Admin\AppData\Local\Temp/3d033155/i1TIlN664GIHYHH.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
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:896
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\GoSave\B5Stow7AE55FBF.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:804
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\GoSave\B5Stow7AE55FBF.x64.dll"
          4⤵
          • Registers COM server for autorun
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          • Modifies Internet Explorer settings
          • Modifies registry class
          PID:984

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Browser Extensions

1
T1176

Defense Evasion

Modify Registry

3
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\B5Stow7AE55FBF.dat
    Filesize

    4KB

    MD5

    99d4926f1868a0aa78fc94b8c36be766

    SHA1

    0cb3685ad5221411039af3de722128201ff3314b

    SHA256

    03b8ee6fb575802a12ea928fea57222787a7a0112e865ca4d3a6d5ddff6766d9

    SHA512

    7832858a3cb8ddeba31e8178fc9ddeeadb24a6e08f14ca0b11ecf7250508ca929594b25ff9d93816ceb3a6f0338adb693f36d31808f97444f82cbf7d502a18ff

  • C:\Program Files (x86)\GoSave\B5Stow7AE55FBF.tlb
    Filesize

    3KB

    MD5

    6913bf1ba01b10787f0b5b1d8788071a

    SHA1

    9a1fe110cd29b99508385b1b1e5cb83e6e2b10ec

    SHA256

    40b0d7a3f86ad964a12d142c9544d015e252e98e2ebab0895ee9df6f3946110c

    SHA512

    c0410368dd71668a1e34bc81536bc2e8a1b19f6c51455f87205f6f2bf0c9ec04a8994c39c4edbd137c04fd1871b5dc19f7c82a9c83a814c17e4a2dd160cb1b1d

  • C:\Program Files (x86)\GoSave\B5Stow7AE55FBF.x64.dll
    Filesize

    878KB

    MD5

    ec4e3ee93c7c6caf8e77b2f2b910c82e

    SHA1

    b8c90bd001c371fadd683a9106b692a0dc6706c8

    SHA256

    ac086b67b1485da29052d256365a25dc9de3082bce7f55b64582152c00aac942

    SHA512

    a3ca51f000cd9092213c5e263f5f23be8deba913ad4f77a8a9b9239fe9807ef10224e26e16437a5862de4ccabda17d37e81d181882ba2ba5bb2515970d36a6c9

  • C:\Users\Admin\AppData\Local\Temp\3d033155\B5Stow7AE55FBF.dll
    Filesize

    746KB

    MD5

    8a167580cd1dd37bd496c810951e265c

    SHA1

    64dd7babc6b7a2614306cc68929d38cc5b6ae0b2

    SHA256

    73cdc61ec4b161fbc4017ef7b8ed73e593439875608c336d57098bac796912ec

    SHA512

    28fd5a1e3554976eddeace6772236b22996448207bab74bcdf6acca2e7880293893f4ecfa5ea3ef54fd073fb226de1de1e6c708e5acd3a51d3878b1fe54ba27f

  • C:\Users\Admin\AppData\Local\Temp\3d033155\B5Stow7AE55FBF.tlb
    Filesize

    3KB

    MD5

    6913bf1ba01b10787f0b5b1d8788071a

    SHA1

    9a1fe110cd29b99508385b1b1e5cb83e6e2b10ec

    SHA256

    40b0d7a3f86ad964a12d142c9544d015e252e98e2ebab0895ee9df6f3946110c

    SHA512

    c0410368dd71668a1e34bc81536bc2e8a1b19f6c51455f87205f6f2bf0c9ec04a8994c39c4edbd137c04fd1871b5dc19f7c82a9c83a814c17e4a2dd160cb1b1d

  • C:\Users\Admin\AppData\Local\Temp\3d033155\B5Stow7AE55FBF.x64.dll
    Filesize

    878KB

    MD5

    ec4e3ee93c7c6caf8e77b2f2b910c82e

    SHA1

    b8c90bd001c371fadd683a9106b692a0dc6706c8

    SHA256

    ac086b67b1485da29052d256365a25dc9de3082bce7f55b64582152c00aac942

    SHA512

    a3ca51f000cd9092213c5e263f5f23be8deba913ad4f77a8a9b9239fe9807ef10224e26e16437a5862de4ccabda17d37e81d181882ba2ba5bb2515970d36a6c9

  • C:\Users\Admin\AppData\Local\Temp\3d033155\ecjmjncpphdmblffigkcfmnenehkmkbi\H79A.js
    Filesize

    6KB

    MD5

    c7105a0d3e2f577f2795535c7da3bc67

    SHA1

    36ae7fe69ef7c379e5e5a4179927da76a1c2a0b5

    SHA256

    c66d0c1ad8e87271799591ccce5de1cc5ff7abbcf08b9e42af409e1bb705e30f

    SHA512

    9487d55eb6bf9f338fc022569473932585a3caa5d5984a638b011a226ee66d80f2b0800a7b7bbedd49142a1a30b8be874f9fcb4f72e64a620f788ad86c16e575

  • C:\Users\Admin\AppData\Local\Temp\3d033155\ecjmjncpphdmblffigkcfmnenehkmkbi\background.html
    Filesize

    141B

    MD5

    f5596a7ce4342abc78d74487cb2d23fd

    SHA1

    d394261add04a606e207449f2833a3561afe8d3e

    SHA256

    009635db877dbc3944eb3d4057253980c9449635f00896de8618f30cb4838145

    SHA512

    1de40011c65ec612406f9465984b97a84faed166d85adc8ebebcafbd734a513ffa640a4cb8504f146a41ef9e4d2973b38437f43e40f2365868a4e657d0185bf1

  • C:\Users\Admin\AppData\Local\Temp\3d033155\ecjmjncpphdmblffigkcfmnenehkmkbi\content.js
    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\3d033155\ecjmjncpphdmblffigkcfmnenehkmkbi\lsdb.js
    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\3d033155\ecjmjncpphdmblffigkcfmnenehkmkbi\manifest.json
    Filesize

    498B

    MD5

    640199ea4621e34510de919f6a54436f

    SHA1

    dc65dbfad02bd2688030bd56ca1cab85917a9937

    SHA256

    e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

    SHA512

    d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

  • C:\Users\Admin\AppData\Local\Temp\3d033155\i1TIlN664GIHYHH.dat
    Filesize

    4KB

    MD5

    99d4926f1868a0aa78fc94b8c36be766

    SHA1

    0cb3685ad5221411039af3de722128201ff3314b

    SHA256

    03b8ee6fb575802a12ea928fea57222787a7a0112e865ca4d3a6d5ddff6766d9

    SHA512

    7832858a3cb8ddeba31e8178fc9ddeeadb24a6e08f14ca0b11ecf7250508ca929594b25ff9d93816ceb3a6f0338adb693f36d31808f97444f82cbf7d502a18ff

  • C:\Users\Admin\AppData\Local\Temp\3d033155\i1TIlN664GIHYHH.exe
    Filesize

    765KB

    MD5

    21c7e6ab35acdb8d15ac0590900c5206

    SHA1

    bd696ab0d1806c5492b4444d96fe272f217f4058

    SHA256

    314c44ac357c692c66516271e02fe280e9fc6d030a7172f2379c81fa383d44ec

    SHA512

    775636d7ec02398e32463ceaa7e1b18fe20689ed75d9c731b37b83f4c3ce828d2d2274d2f75d4f2c25133775969864467eff69b5fbf40e286fbfca6bdee1d3dd

  • C:\Users\Admin\AppData\Local\Temp\3d033155\i1TIlN664GIHYHH.exe
    Filesize

    765KB

    MD5

    21c7e6ab35acdb8d15ac0590900c5206

    SHA1

    bd696ab0d1806c5492b4444d96fe272f217f4058

    SHA256

    314c44ac357c692c66516271e02fe280e9fc6d030a7172f2379c81fa383d44ec

    SHA512

    775636d7ec02398e32463ceaa7e1b18fe20689ed75d9c731b37b83f4c3ce828d2d2274d2f75d4f2c25133775969864467eff69b5fbf40e286fbfca6bdee1d3dd

  • C:\Users\Admin\AppData\Local\Temp\3d033155\[email protected]\bootstrap.js
    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

  • C:\Users\Admin\AppData\Local\Temp\3d033155\[email protected]\chrome.manifest
    Filesize

    35B

    MD5

    9b45f75518cb0675cff199977c0d7e12

    SHA1

    4e9fa46284159e8f3737e137a0e3cc3467325ab4

    SHA256

    d5b2fd14e74bf4039db71d54e2f413f428b908f915e479bbf7895f9977edd6f9

    SHA512

    ca8060b6b4850dfb3caca7a64ec8f0c3e45e252a1e3172cb430b6774b6d615f2d243a1689a3add69b84e8e9478c19fb373b765e52a68b406e163a783d8d5684c

  • C:\Users\Admin\AppData\Local\Temp\3d033155\[email protected]\content\bg.js
    Filesize

    8KB

    MD5

    bea2415d5de24cbbcbae27a5aee87a33

    SHA1

    3a3fcd035587bd371662ca2fffd291cbb9010f89

    SHA256

    5b095d965148e033ca221465e712ac6d4b91d6a9ecdeb436b0dcf6f92bc1a1fa

    SHA512

    220732f98bf1df6963e7f854dfaec42ac77b17a832e62d9d0fd90141f79ce35dd8978ae9ffc61fa769302eb34c7b4736f28b55081f09389bcd80ca70d23b7a62

  • C:\Users\Admin\AppData\Local\Temp\3d033155\[email protected]\install.rdf
    Filesize

    593B

    MD5

    315df512f58526bc86c260b25b973ae1

    SHA1

    8d58bba7144f3627e195b86f55ab3124d8f3b8d3

    SHA256

    e2fb5488a0adbd8a3bf8b6a8b6c6b94e6abeb41b89fed421c4fe4fb3f31afa8a

    SHA512

    ecee011b1dfd3c48e674d0567c85e27124daf5e815a995833e6f967f81b2b54968a228567388e4bf7a2d9cff2c79fc98a56805cae4336a65efa72ab40564de16

  • \Program Files (x86)\GoSave\B5Stow7AE55FBF.dll
    Filesize

    746KB

    MD5

    8a167580cd1dd37bd496c810951e265c

    SHA1

    64dd7babc6b7a2614306cc68929d38cc5b6ae0b2

    SHA256

    73cdc61ec4b161fbc4017ef7b8ed73e593439875608c336d57098bac796912ec

    SHA512

    28fd5a1e3554976eddeace6772236b22996448207bab74bcdf6acca2e7880293893f4ecfa5ea3ef54fd073fb226de1de1e6c708e5acd3a51d3878b1fe54ba27f

  • \Program Files (x86)\GoSave\B5Stow7AE55FBF.x64.dll
    Filesize

    878KB

    MD5

    ec4e3ee93c7c6caf8e77b2f2b910c82e

    SHA1

    b8c90bd001c371fadd683a9106b692a0dc6706c8

    SHA256

    ac086b67b1485da29052d256365a25dc9de3082bce7f55b64582152c00aac942

    SHA512

    a3ca51f000cd9092213c5e263f5f23be8deba913ad4f77a8a9b9239fe9807ef10224e26e16437a5862de4ccabda17d37e81d181882ba2ba5bb2515970d36a6c9

  • \Program Files (x86)\GoSave\B5Stow7AE55FBF.x64.dll
    Filesize

    878KB

    MD5

    ec4e3ee93c7c6caf8e77b2f2b910c82e

    SHA1

    b8c90bd001c371fadd683a9106b692a0dc6706c8

    SHA256

    ac086b67b1485da29052d256365a25dc9de3082bce7f55b64582152c00aac942

    SHA512

    a3ca51f000cd9092213c5e263f5f23be8deba913ad4f77a8a9b9239fe9807ef10224e26e16437a5862de4ccabda17d37e81d181882ba2ba5bb2515970d36a6c9

  • \Users\Admin\AppData\Local\Temp\3d033155\i1TIlN664GIHYHH.exe
    Filesize

    765KB

    MD5

    21c7e6ab35acdb8d15ac0590900c5206

    SHA1

    bd696ab0d1806c5492b4444d96fe272f217f4058

    SHA256

    314c44ac357c692c66516271e02fe280e9fc6d030a7172f2379c81fa383d44ec

    SHA512

    775636d7ec02398e32463ceaa7e1b18fe20689ed75d9c731b37b83f4c3ce828d2d2274d2f75d4f2c25133775969864467eff69b5fbf40e286fbfca6bdee1d3dd

  • memory/804-73-0x0000000000000000-mapping.dmp
  • memory/896-56-0x0000000000000000-mapping.dmp
  • memory/948-54-0x0000000075D01000-0x0000000075D03000-memory.dmp
    Filesize

    8KB

  • memory/984-77-0x0000000000000000-mapping.dmp
  • memory/984-78-0x000007FEFC101000-0x000007FEFC103000-memory.dmp
    Filesize

    8KB