Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    07-05-2024 23:36

General

  • Target

    2239fcbdac9582e1a379dc39ca1e4dd1_JaffaCakes118.exe

  • Size

    4.3MB

  • MD5

    2239fcbdac9582e1a379dc39ca1e4dd1

  • SHA1

    9f3b3a7126144c2e3195d073f385c34fa82cfb6b

  • SHA256

    3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f

  • SHA512

    994688df44661ad342c97757212487cc30fe3a1241e1e05ad15f44a393d53f9bd8173cfbaf143c17c297eea6a052afe900c2199c3385abf636ac3f2aa0b5ee97

  • SSDEEP

    98304:EJyh2DzSgTbg52T41Ahxo2DvzQ/LwqDVNzsgeIXS3HWbNYS1HGO5AUMW4kmw:EgDWq2s8xocE/Lxno1n2bNYS1HtAZW4S

Malware Config

Extracted

Family

cryptbot

C2

cede04.info

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Blocklisted process makes network request 5 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 2 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 8 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies system certificate store 2 TTPs 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2239fcbdac9582e1a379dc39ca1e4dd1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\2239fcbdac9582e1a379dc39ca1e4dd1_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2944
    • C:\Program Files (x86)\Sir\Air\Setup.exe
      "C:\Program Files (x86)\Sir\Air\Setup.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Loads dropped DLL
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      PID:2820
    • C:\Windows\SysWOW64\CScript.exe
      "C:\Windows\system32\CScript.exe" "C:\Program Files (x86)\Sir\Air\ipras.vbs" //e:vbscript //B //NOLOGO
      2⤵
      • Blocklisted process makes network request
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      PID:1260
    • C:\Program Files (x86)\Sir\Air\Setupres.exe
      "C:\Program Files (x86)\Sir\Air\Setupres.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Loads dropped DLL
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      PID:1908

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\Sir\Air\ipras.vbs
    Filesize

    126B

    MD5

    b802ff9244875f69db2fae0f78e92b10

    SHA1

    49385a89cd575894a29fbda969b99cc1f5cf8076

    SHA256

    a1b0cb16fb2ecd66fccf156024404801ad694056e8a596326c1b27b57d8eabe8

    SHA512

    609856415a7ae2b3e260f945f1c8a8d2a28884c202d37181bea948708918f24b42ae03f17dba1520fddc91b2f7a182b0b8f885f33ea6f81bb3ee4c72e4e9350e

  • C:\ProgramData\JYb3hILh\47283761.txt
    Filesize

    156B

    MD5

    b5089e0c5a3d5377e9bd19c0557ef04e

    SHA1

    9402e326be3d240e234c06892b15c24e93c93eb8

    SHA256

    d77789b2c49759c882f4fdd6f53e665b0d012f8f0949d0150eaba47fbf2a0eb5

    SHA512

    942349ccb99854f274ef1e20b623660588e15bd0d25bfc817fe9b2d010db656af340652e0e67b41edbf0cf259d55ab880d6b50acb1d7e8ab394f1393f7956c13

  • C:\ProgramData\JYb3hILh\Files\_Info.txt
    Filesize

    1KB

    MD5

    16b306899789fc86b70f0793b8f0cdda

    SHA1

    49c42740d9f039d1d8b69320aeb7f162c2424faf

    SHA256

    3d1dd470667089fc0900d98a871a41bdc68173ebfa46508a9068a0f997b07c0b

    SHA512

    9662b4b35f1ddd7bd065335bf85b82a1b3b069ed32c553d564be8c10ac66c5943734593303c43c21c3ca28278c41db027a5d68c21cc3f171b9c540e95b0d4a2a

  • C:\ProgramData\JYb3hILh\hn1rO5rIJg.zip
    Filesize

    41KB

    MD5

    6b9639e0a705e0aef2c92208a66756c7

    SHA1

    13e1a5a42231c6e93909f3299abdeb3c53ab40c0

    SHA256

    93af80383b308592ecf5d11d1a060cb3aefe82d8ad27c7c152a7535e1973a193

    SHA512

    2ee6a00dadc2af3bb7847f32bcd730d88097382ab48894f006347956186ab3538c0383de33d2dd9ea2bf64267d13f3399cc039bb641f5ebc369bec8fa59eaa5b

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

    344B

    MD5

    e4d35587de75fd78267fc8faafb3499d

    SHA1

    d069030afd6dc33e0b5c5adb19391cef1d147eea

    SHA256

    c126c7e50e1f07d016d8fccd49429f6621133a4968af40f1a9ab29cb25a72528

    SHA512

    3795817e4cec5572161e327357b2e5f610fd6228ecf7f5207fef08ac8fc76a1dbf4bd6f5da1d245a9c8fbba8e4b297ce50e5fe931537afd2d2d3b943819aac9a

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

    344B

    MD5

    ceec69e43108de6306a7c5d47324085b

    SHA1

    5760760db2cb613bbe18fc3d48ab21ebc0693a9c

    SHA256

    1fadb68b0353eedb636b9abcd4c404d7e25c7485ef62f4cb2cd47f85967e2ff0

    SHA512

    b7a0e4792ee47433202522c05ce81d73be284572dabd8430c5fd89f78b53db6488af95f010b4356f6fb096c59174841de650252c7363170f00e45550edcf1991

  • C:\Users\Admin\AppData\Local\Temp\Cab2712.tmp
    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\Tar27A2.tmp
    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • \Program Files (x86)\Sir\Air\Setup.exe
    Filesize

    2.2MB

    MD5

    41af7998ebb519e0a0ca9635a865be5d

    SHA1

    68a7613a8d4483efb67f3794c245420e0daf2f95

    SHA256

    f05dc2ebf5bebbe40f1698489b873adcbefa41c98afe544fa04fd1ded91c9189

    SHA512

    31af03c31f0568ae57aab30c3d320a5505f3106ffd02c19b9bb5c740f76af332b27d929fca715029bfd49f2a0f404643616f0f88ab4f115693949688112ac5bb

  • \Program Files (x86)\Sir\Air\Setupres.exe
    Filesize

    2.0MB

    MD5

    b00f36abdbc0edb4729ae72ed388e965

    SHA1

    a1bf243bda51006cf4c8b9ee1fdcffb206058973

    SHA256

    5e64432c3afc95cfda49aa9479fd66efb8d7ef9812a2acb3fa9a0f536a2e5db9

    SHA512

    8dd8e5d9d6ad4a5515ae178f27e4878ddab3b8cf8786177cac91719517a959fba30cc7d93eb0eff9d1d71d097dbbdf07684fd8b077e144927079db8b8d1f5bb3

  • \Users\Admin\AppData\Local\Temp\nsy1E99.tmp\UAC.dll
    Filesize

    14KB

    MD5

    adb29e6b186daa765dc750128649b63d

    SHA1

    160cbdc4cb0ac2c142d361df138c537aa7e708c9

    SHA256

    2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

    SHA512

    b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

  • \Users\Admin\AppData\Local\Temp\nsy1E99.tmp\nsExec.dll
    Filesize

    6KB

    MD5

    132e6153717a7f9710dcea4536f364cd

    SHA1

    e39bc82c7602e6dd0797115c2bd12e872a5fb2ab

    SHA256

    d29afce2588d8dd7bb94c00ca91cac0e85b80ffa6b221f5ffcb83a2497228eb2

    SHA512

    9aeb0b3051ce07fb9f03dfee7cea4a5e423425e48cb538173bd2a167817f867a30bd4d27d07875f27ca00031745b24547030b7f146660b049fa717590f1c77e1

  • memory/1908-159-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-235-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-256-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-145-0x0000000001290000-0x00000000017AE000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-146-0x0000000001290000-0x00000000017AE000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-147-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-252-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-150-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-249-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-242-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-238-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-228-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-225-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-222-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-219-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-215-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-160-0x0000000001290000-0x00000000017AE000-memory.dmp
    Filesize

    5.1MB

  • memory/1908-212-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-233-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-149-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-214-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-21-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-217-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-22-0x00000000013B0000-0x00000000018CB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-221-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-227-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-224-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-156-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-254-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-155-0x00000000013B0000-0x00000000018CB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-237-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-23-0x00000000013B0000-0x00000000018CB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-210-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-154-0x00000000013B0000-0x00000000018CB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-240-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-152-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-244-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2820-251-0x0000000000E90000-0x00000000013AB000-memory.dmp
    Filesize

    5.1MB

  • memory/2944-151-0x0000000002FB0000-0x00000000034CB000-memory.dmp
    Filesize

    5.1MB

  • memory/2944-10-0x0000000002FB0000-0x00000000034CB000-memory.dmp
    Filesize

    5.1MB

  • memory/2944-144-0x0000000002FB0000-0x00000000034CE000-memory.dmp
    Filesize

    5.1MB

  • memory/2944-157-0x0000000002FB0000-0x00000000034CE000-memory.dmp
    Filesize

    5.1MB