Analysis

  • max time kernel
    191s
  • max time network
    247s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 09:01

General

  • Target

    6c1924802d07dd44e7cc174fed2eaf8772eeef6ff559858e0b16ac02f5211f94.exe

  • Size

    1.2MB

  • MD5

    5dd8c30bc07c101fe8d172a8ef56b9a6

  • SHA1

    7b7cb85e277ab2cb46f28d36669ece099469af98

  • SHA256

    6c1924802d07dd44e7cc174fed2eaf8772eeef6ff559858e0b16ac02f5211f94

  • SHA512

    1c2fb9ef51b4f5488c2dfb22da1a8fc19c45feb17e45976d9ece440aafc8dcc81ebcf5a302eea0d497a45e51dcdc6cc9865475d3627d3450fae6062e122e28ec

  • SSDEEP

    1536:+EfFNvtgmAl7z5dKY6yuJPW8K43w9NXOM1aRl/i6JWT0S9yXnBibnouy8gHn2JX:+YLmGO4W849NXO9RlK6gOxiDouto2N

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 14 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • UAC bypass 3 TTPs 3 IoCs
  • Windows security bypass 2 TTPs 4 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Sets file execution options in registry 2 TTPs 64 IoCs
  • UPX packed file 14 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Windows security modification 2 TTPs 15 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Control Panel 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 63 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Modifies registry class 24 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • System policy modification 1 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6c1924802d07dd44e7cc174fed2eaf8772eeef6ff559858e0b16ac02f5211f94.exe
    "C:\Users\Admin\AppData\Local\Temp\6c1924802d07dd44e7cc174fed2eaf8772eeef6ff559858e0b16ac02f5211f94.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1420
    • C:\Users\Admin\E696D64614\winlogon.exe
      "C:\Users\Admin\E696D64614\winlogon.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:844
      • C:\Users\Admin\E696D64614\winlogon.exe
        "C:\Users\Admin\E696D64614\winlogon.exe"
        3⤵
        • Modifies firewall policy service
        • Modifies security service
        • Modifies visibility of file extensions in Explorer
        • Modifies visiblity of hidden/system files in Explorer
        • UAC bypass
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Sets file execution options in registry
        • Windows security modification
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Modifies Control Panel
        • Modifies Internet Explorer settings
        • Modifies Internet Explorer start page
        • Modifies registry class
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • System policy modification
        PID:916
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2000
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2000 CREDAT:275457 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:1592

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

2
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

2
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Modify Registry

13
T1112

Hidden Files and Directories

2
T1158

Bypass User Account Control

1
T1088

Disabling Security Tools

3
T1089

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
    Filesize

    2KB

    MD5

    8cd381eca2d5342e36b1e65a9b7f82d5

    SHA1

    d9b529576e1ea26e8daf88fcda26b7a0069da217

    SHA256

    17ff373fb2deb3ef3931ae098202097211226848ea6c581ceb9514e7a6e49369

    SHA512

    c888bcac5413df3eac3b068d37c866362d37915f1a25508743d818f79ce5b0518fe7ec7a4ff29be51d2404eb5f999b5d2238e60a8670375b82a8a96566101154

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
    Filesize

    1KB

    MD5

    8641ac0a62e1e72023be75ceed4638a9

    SHA1

    a347dbd79e99d81cdd6ec77783008fec9f7e7d42

    SHA256

    d291f90a287f0bf8702208bab880ef95c5b2bd22a2c21762e828a707a004da2c

    SHA512

    9a12e4baf2ca8bc5c4ca5a8606a9200241da8fb413e50ef6c0b6b4597c25a2636915bd9dfd7e9a97e0f58a15859629bad9222188dccdaf4efdbb8e14884d0ffe

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C67047FE238D580B731A13BEA5F7481F
    Filesize

    472B

    MD5

    176c5bdeeb799ec212e8b21126aa58d5

    SHA1

    02c76719828821643ec84cfe61ecb4499838021c

    SHA256

    eaa1c4ffce046f2951b93258d2c8c396da596a86c40cb3954ea8ceb4b13aa842

    SHA512

    a8fcd3787e674c37c70bce3a3cb0cdf832c03483d01a29887183ca8345d632f0bb75509586b07218e9c4d06c5d1a413dc26374270789b147446d54cf0303f3ed

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
    Filesize

    488B

    MD5

    a6cf010711aae59b4676eaf0cbf913fd

    SHA1

    e1203ef0c574a7bec2eec643c3badf415ea30f3e

    SHA256

    22ccb67a98bfd64bd2abcdbd166f99667c4087a11ef80fe364b8023c2df0a3c9

    SHA512

    0deae384a370e634edd30da2ec0cd47ddaae8adaa424c0e84c17ed498db4a82f4954cbe8fba2a70d8c126d632ecfb05e323e244399a5500a68026be239445a2d

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    342B

    MD5

    720eb31af2a84a99aa7f8fdc0092687c

    SHA1

    530c49c1af883422777a8cdc184792ccd038da42

    SHA256

    bce13a96ad85227210a487117c1e02faad7fb8cff6f13c6f47b256ff84923c2e

    SHA512

    83ddf09630e671aa1692c897224d9b4975d9e910713b67379dab726e58cb265fe3e823236dda06a4ad2be3c177b2ec076479033f17ad178bab9223737652e4ab

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    342B

    MD5

    07c789940e08dfe8683ba5b06111996c

    SHA1

    c7c29cb0cb55b18388e50f55ca4a834c7fcd9825

    SHA256

    a219cdedbccf9256e29a45ef35783370fbde16c6bb3412c02076dd24272a3e71

    SHA512

    08c35928b4675515ca8d5871790b8d1e2670f72e685babd52b6fb89ccdec55b0a1d08f5e5a7644aaca66ac140b12bfcafbc8b8e52cf73c22abc53470a3b1f1d5

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    342B

    MD5

    5628b833cb20a1bc65a26ffc58af5fef

    SHA1

    1dd4b40e229dbfa8c71ea980e07ad717ae18f0be

    SHA256

    0a5e1b70fb2349006e048b7b908ea9bd3a4ea937780a7d443941e2e20b5362e2

    SHA512

    b322b00082c7a39d1654f37d8048e39b46270e0d30abd4db1bc37a7b1f5888ad2d51ac0efb82a06b691cc1422e62409dc9bb4d0f08ead1123c434c1836a17a9b

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
    Filesize

    482B

    MD5

    967dd2d58a6f7c8638285bc7e600ba80

    SHA1

    cc412e64cb1c98b9d1b73176e6ac3beb8cc31f5c

    SHA256

    de4236d14b9c1ca863fef7d899c0afc45eee4a14922d12ead6671a4d0fbe9b18

    SHA512

    43a9338b5aaf5d78243584fee8e81975236423ab7fbbf3f53c0f1d7bd7a670398227b9cf972149235310d1fa02c8b3c1ba4cc400196bc23d1c1088746d65aaca

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C67047FE238D580B731A13BEA5F7481F
    Filesize

    480B

    MD5

    564618e622453df93fd5bc4526dcab12

    SHA1

    4deb3f4e1eacae0dc0f6b65fbf677a5a841b9a2c

    SHA256

    4c56c525102daa725475cc27c799b3edb8b36a36036dd34899689d7ba7cd9926

    SHA512

    a0a123c0d6e34e8e503e6e72028fad871f849d6f5c556365fe59b8cd92bd3326e1762765b9d31f654119f2e46140fcefcf479a60106ab1f8e5f1b7be8af29b15

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\FF9GNYAB.txt
    Filesize

    97B

    MD5

    3d5a01b681a51eaabe2c37ffc51af7e5

    SHA1

    e899f1d50b89e8d9c29a41c421c4cac4dbb486e4

    SHA256

    0b86a3031cc4ca3d37a6d4a3f00460c627a638b8eefa6e605abef32bda77bdd2

    SHA512

    f6ffabce74f00bd23db46e213177419f6740c35e5e043bf9f8cff85e967a52f906e0e76d6d68070747606a0f7fa0203e299e306dff045de330863658332ed388

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\J01GN2ZA.txt
    Filesize

    118B

    MD5

    07fea77c8d88fdf086c3678062f44dc2

    SHA1

    c12ff8717f9af40f8948d2f7dfd948043c3e2bbf

    SHA256

    67bf749ffacb5f72c0c5a00d651a7a65459b563f6dc288dbcc7ec900c7027d7a

    SHA512

    5fdfb2fc9a9a00893a5131e84d4fb641e36f04de75a55878fc85e09640186045ff86a7142cebe6440261e273f476f0b46198d8159ebb25d6ea5df2c91dbced3c

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\S5M8ZM1K.txt
    Filesize

    601B

    MD5

    5f19de53c85cce20b1c93f2de657044e

    SHA1

    8bfe43822a0869ca2beb95054d7d3558faca80df

    SHA256

    3192fa021bf178573cbcb512b81d4949994b67bf66d09a744d922a4823536881

    SHA512

    e28c5d3a7cb8079d5e914a4f9335181f64be9bb9b8d4ef2fcfbe1463ef367d4920f98f71ab04584d2132582a28daf05d449d84d5d6c08fa02465e221ad4cf8be

  • C:\Users\Admin\E696D64614\winlogon.exe
    Filesize

    1.2MB

    MD5

    5dd8c30bc07c101fe8d172a8ef56b9a6

    SHA1

    7b7cb85e277ab2cb46f28d36669ece099469af98

    SHA256

    6c1924802d07dd44e7cc174fed2eaf8772eeef6ff559858e0b16ac02f5211f94

    SHA512

    1c2fb9ef51b4f5488c2dfb22da1a8fc19c45feb17e45976d9ece440aafc8dcc81ebcf5a302eea0d497a45e51dcdc6cc9865475d3627d3450fae6062e122e28ec

  • C:\Users\Admin\E696D64614\winlogon.exe
    Filesize

    1.2MB

    MD5

    5dd8c30bc07c101fe8d172a8ef56b9a6

    SHA1

    7b7cb85e277ab2cb46f28d36669ece099469af98

    SHA256

    6c1924802d07dd44e7cc174fed2eaf8772eeef6ff559858e0b16ac02f5211f94

    SHA512

    1c2fb9ef51b4f5488c2dfb22da1a8fc19c45feb17e45976d9ece440aafc8dcc81ebcf5a302eea0d497a45e51dcdc6cc9865475d3627d3450fae6062e122e28ec

  • C:\Users\Admin\E696D64614\winlogon.exe
    Filesize

    1.2MB

    MD5

    5dd8c30bc07c101fe8d172a8ef56b9a6

    SHA1

    7b7cb85e277ab2cb46f28d36669ece099469af98

    SHA256

    6c1924802d07dd44e7cc174fed2eaf8772eeef6ff559858e0b16ac02f5211f94

    SHA512

    1c2fb9ef51b4f5488c2dfb22da1a8fc19c45feb17e45976d9ece440aafc8dcc81ebcf5a302eea0d497a45e51dcdc6cc9865475d3627d3450fae6062e122e28ec

  • \Users\Admin\E696D64614\winlogon.exe
    Filesize

    1.2MB

    MD5

    5dd8c30bc07c101fe8d172a8ef56b9a6

    SHA1

    7b7cb85e277ab2cb46f28d36669ece099469af98

    SHA256

    6c1924802d07dd44e7cc174fed2eaf8772eeef6ff559858e0b16ac02f5211f94

    SHA512

    1c2fb9ef51b4f5488c2dfb22da1a8fc19c45feb17e45976d9ece440aafc8dcc81ebcf5a302eea0d497a45e51dcdc6cc9865475d3627d3450fae6062e122e28ec

  • \Users\Admin\E696D64614\winlogon.exe
    Filesize

    1.2MB

    MD5

    5dd8c30bc07c101fe8d172a8ef56b9a6

    SHA1

    7b7cb85e277ab2cb46f28d36669ece099469af98

    SHA256

    6c1924802d07dd44e7cc174fed2eaf8772eeef6ff559858e0b16ac02f5211f94

    SHA512

    1c2fb9ef51b4f5488c2dfb22da1a8fc19c45feb17e45976d9ece440aafc8dcc81ebcf5a302eea0d497a45e51dcdc6cc9865475d3627d3450fae6062e122e28ec

  • memory/844-70-0x0000000000400000-0x0000000000447000-memory.dmp
    Filesize

    284KB

  • memory/844-60-0x0000000000000000-mapping.dmp
  • memory/844-64-0x0000000000400000-0x0000000000447000-memory.dmp
    Filesize

    284KB

  • memory/916-71-0x0000000000400000-0x000000000043F000-memory.dmp
    Filesize

    252KB

  • memory/916-75-0x0000000000400000-0x000000000043F000-memory.dmp
    Filesize

    252KB

  • memory/916-88-0x0000000000400000-0x000000000043F000-memory.dmp
    Filesize

    252KB

  • memory/916-89-0x0000000000400000-0x000000000043F000-memory.dmp
    Filesize

    252KB

  • memory/916-72-0x000000000043C540-mapping.dmp
  • memory/916-76-0x0000000000400000-0x000000000043F000-memory.dmp
    Filesize

    252KB

  • memory/1420-65-0x0000000000400000-0x0000000000447000-memory.dmp
    Filesize

    284KB

  • memory/1420-63-0x0000000002D80000-0x0000000002DC7000-memory.dmp
    Filesize

    284KB

  • memory/1420-62-0x0000000002D80000-0x0000000002DC7000-memory.dmp
    Filesize

    284KB

  • memory/1420-56-0x0000000000400000-0x0000000000447000-memory.dmp
    Filesize

    284KB

  • memory/1420-57-0x0000000075C81000-0x0000000075C83000-memory.dmp
    Filesize

    8KB