Analysis

  • max time kernel
    150s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    26-09-2021 16:11

General

  • Target

    831ba3bb4dfd40bf0408d07a186eb216.exe

  • Size

    140KB

  • MD5

    831ba3bb4dfd40bf0408d07a186eb216

  • SHA1

    adf6f3514edc63b5ce5b91d3bc781a13bb176247

  • SHA256

    f6ede8409878ceb95b88f9cc7064b816568a0be6a933676709152de794173e1a

  • SHA512

    e1c4f66d3aa75dce06993a49bc511cfaae178651b96860114f49df36ff48a5e4f8c7eb8b26a4675b0d53597a103034a7c06f1be7a4d60fdf9638af15c3546da7

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://naghenrietti1.top/

http://kimballiett2.top/

http://xadriettany3.top/

http://jebeccallis4.top/

http://nityanneron5.top/

http://umayaniela6.top/

http://lynettaram7.top/

http://sadineyalas8.top/

http://geenaldencia9.top/

http://aradysiusep10.top/

rc4.i32
rc4.i32

Extracted

Family

raccoon

Botnet

5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4

Attributes
  • url4cnc

    https://t.me/agrybirdsgamerept

rc4.plain
rc4.plain

Extracted

Family

redline

Botnet

karma

C2

94.103.9.133:39323

Extracted

Family

redline

Botnet

Bliss

C2

185.237.98.178:62607

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • Generic Chinese Botnet

    A botnet originating from China which is currently unnamed publicly.

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 4 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Arkei Stealer Payload 1 IoCs
  • Chinese Botnet Payload 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 9 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • 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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies data under HKEY_USERS 49 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SendNotifyMessage 6 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\831ba3bb4dfd40bf0408d07a186eb216.exe
    "C:\Users\Admin\AppData\Local\Temp\831ba3bb4dfd40bf0408d07a186eb216.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1216
    • C:\Users\Admin\AppData\Local\Temp\831ba3bb4dfd40bf0408d07a186eb216.exe
      "C:\Users\Admin\AppData\Local\Temp\831ba3bb4dfd40bf0408d07a186eb216.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2044
  • C:\Users\Admin\AppData\Local\Temp\2386.exe
    C:\Users\Admin\AppData\Local\Temp\2386.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:1684
  • C:\Users\Admin\AppData\Local\Temp\28C5.exe
    C:\Users\Admin\AppData\Local\Temp\28C5.exe
    1⤵
    • Executes dropped EXE
    PID:588
  • C:\Users\Admin\AppData\Local\Temp\2DD5.exe
    C:\Users\Admin\AppData\Local\Temp\2DD5.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:472
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\2DD5.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1208
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • Delays execution with timeout.exe
        PID:1348
  • C:\Users\Admin\AppData\Local\Temp\3268.exe
    C:\Users\Admin\AppData\Local\Temp\3268.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:976
    • C:\Users\Admin\AppData\Local\Temp\SindonsWelfare_2021-09-26_15-02.exe
      "C:\Users\Admin\AppData\Local\Temp\SindonsWelfare_2021-09-26_15-02.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1748
    • C:\Users\Admin\AppData\Local\Temp\SolanumsYoghurt_2021-09-26_14-52.exe
      "C:\Users\Admin\AppData\Local\Temp\SolanumsYoghurt_2021-09-26_14-52.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:972
    • C:\Users\Admin\AppData\Local\Temp\fbf.exe
      "C:\Users\Admin\AppData\Local\Temp\fbf.exe"
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Checks processor information in registry
      • Suspicious use of SetWindowsHookEx
      PID:1708
  • C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
    "C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe"
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
      "C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe" Win7
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:1208

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
    MD5

    fbf3187db919beaddb30ae7e52bd9a49

    SHA1

    d2891928551f2adff238547c7cae4e3fef7cc057

    SHA256

    a83b8dfadf92be244ccc6b2964eea2f67e0c807befa3ab969a68ee321be583dd

    SHA512

    1d609711a21609d3bc3df80d3616ef388f32e0adcb9af865bfa3aeb9c61f81e099e5591cdecbe5412a4ea18ef236043c977faad4245ae45fd58eeb15119715ab

  • C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
    MD5

    fbf3187db919beaddb30ae7e52bd9a49

    SHA1

    d2891928551f2adff238547c7cae4e3fef7cc057

    SHA256

    a83b8dfadf92be244ccc6b2964eea2f67e0c807befa3ab969a68ee321be583dd

    SHA512

    1d609711a21609d3bc3df80d3616ef388f32e0adcb9af865bfa3aeb9c61f81e099e5591cdecbe5412a4ea18ef236043c977faad4245ae45fd58eeb15119715ab

  • C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
    MD5

    fbf3187db919beaddb30ae7e52bd9a49

    SHA1

    d2891928551f2adff238547c7cae4e3fef7cc057

    SHA256

    a83b8dfadf92be244ccc6b2964eea2f67e0c807befa3ab969a68ee321be583dd

    SHA512

    1d609711a21609d3bc3df80d3616ef388f32e0adcb9af865bfa3aeb9c61f81e099e5591cdecbe5412a4ea18ef236043c977faad4245ae45fd58eeb15119715ab

  • C:\Users\Admin\AppData\Local\Temp\2386.exe
    MD5

    a8f923639f9b10392a12e409a4b65d80

    SHA1

    5dc1b8d6751f37ac2cfa526e35de2bedac479332

    SHA256

    ec9c47685aaf2711429538df1efddeace58992d79f685387778f0a99af4cdbe5

    SHA512

    57a34ad6388e675c69dcce9a5a8761d9d7ec80be3229545b82dfd8bf16f0702ccdf6a51b8316d569f10f8a6e2e9b9e78ee07227b73d356984a10061b63921214

  • C:\Users\Admin\AppData\Local\Temp\28C5.exe
    MD5

    fd671770412227717cda8c1eb4fe01c8

    SHA1

    63a70f145f545b565f6eb17217e1ee266131d953

    SHA256

    18cb80a5210c9bdca13e3ac1f0a8a3fc3fc9ceb60c991045160a6552fab7d3e6

    SHA512

    9c24142d45522c855bd7504b0ce3f62fe4ad14958ffc6bdab4591d3fbff66d90347e33352c0aa5d18bea1ad3dc9f5ffce828a058bd294b2c552729d0b244c7da

  • C:\Users\Admin\AppData\Local\Temp\2DD5.exe
    MD5

    4bb4625eefca3f9dfa7ceb06e2ed0acf

    SHA1

    17eef61253fb891fefe31852db649c328e718c1f

    SHA256

    4bf0b22a3a3a941e5e656212af53bdacd3cc42a104bfdf0a331f3819d82384d5

    SHA512

    d2893a37226007207c2ad04f2b40e0ec9aa91478fc65792c8f487435d018368b7f85ddd639212cf0b827f5e7c8cfffa1449962a803a18e3efc3c5cfd6c05792b

  • C:\Users\Admin\AppData\Local\Temp\2DD5.exe
    MD5

    4bb4625eefca3f9dfa7ceb06e2ed0acf

    SHA1

    17eef61253fb891fefe31852db649c328e718c1f

    SHA256

    4bf0b22a3a3a941e5e656212af53bdacd3cc42a104bfdf0a331f3819d82384d5

    SHA512

    d2893a37226007207c2ad04f2b40e0ec9aa91478fc65792c8f487435d018368b7f85ddd639212cf0b827f5e7c8cfffa1449962a803a18e3efc3c5cfd6c05792b

  • C:\Users\Admin\AppData\Local\Temp\3268.exe
    MD5

    b2d8e3fc81ee69664d1221439ffd9ee8

    SHA1

    c325fe65f692c8ee023f12f41cbb0663d658b917

    SHA256

    2532854386c2ac90a742a4cb593fa2502f261ff2909444de7415ea175285b89b

    SHA512

    d31b225f989b75c02e09660aa5ec70e6a92b901567c823b38a726ed9735d60df755fbd9f80fb12a34e835253707a3ba8e0318f233b54794e55b79f785287976f

  • C:\Users\Admin\AppData\Local\Temp\3268.exe
    MD5

    b2d8e3fc81ee69664d1221439ffd9ee8

    SHA1

    c325fe65f692c8ee023f12f41cbb0663d658b917

    SHA256

    2532854386c2ac90a742a4cb593fa2502f261ff2909444de7415ea175285b89b

    SHA512

    d31b225f989b75c02e09660aa5ec70e6a92b901567c823b38a726ed9735d60df755fbd9f80fb12a34e835253707a3ba8e0318f233b54794e55b79f785287976f

  • C:\Users\Admin\AppData\Local\Temp\SindonsWelfare_2021-09-26_15-02.exe
    MD5

    85ea0a07196273bbe4f6c62a03a2f203

    SHA1

    cdd0dffd5d27e3ad577ae8b9d2bb96f6f5dfe04e

    SHA256

    6cb9da1cb79c8725942119d20eceb769f64513380285b8729310ba025f0c4843

    SHA512

    a5f0ce32164d00b13c6d9a88686c4db835366b68260b6e2ce16ad00b44f7c435c4e034d753c9774a7e237f3b02cf16d2983c56b1bc6925baa6d1902b67a2fe80

  • C:\Users\Admin\AppData\Local\Temp\SolanumsYoghurt_2021-09-26_14-52.exe
    MD5

    105284f4061d970957c38814ed96eec6

    SHA1

    a6a0adb7f986be857be7520da0b498c975b0d845

    SHA256

    5709a8b2658fa9ccf9137f164dae6094d997c0cc42e87cb84f9e6e86087b07ef

    SHA512

    771e64a374320d57f0b0f98272dd3dc657546494bb881efa5984ce4e0cf14c2f9b1aef8a1e269099c80dc9705d5af9f457519d2231150305206848a7d52658a7

  • C:\Users\Admin\AppData\Local\Temp\fbf.exe
    MD5

    fbf3187db919beaddb30ae7e52bd9a49

    SHA1

    d2891928551f2adff238547c7cae4e3fef7cc057

    SHA256

    a83b8dfadf92be244ccc6b2964eea2f67e0c807befa3ab969a68ee321be583dd

    SHA512

    1d609711a21609d3bc3df80d3616ef388f32e0adcb9af865bfa3aeb9c61f81e099e5591cdecbe5412a4ea18ef236043c977faad4245ae45fd58eeb15119715ab

  • C:\Users\Admin\AppData\Local\Temp\fbf.exe
    MD5

    fbf3187db919beaddb30ae7e52bd9a49

    SHA1

    d2891928551f2adff238547c7cae4e3fef7cc057

    SHA256

    a83b8dfadf92be244ccc6b2964eea2f67e0c807befa3ab969a68ee321be583dd

    SHA512

    1d609711a21609d3bc3df80d3616ef388f32e0adcb9af865bfa3aeb9c61f81e099e5591cdecbe5412a4ea18ef236043c977faad4245ae45fd58eeb15119715ab

  • \??\c:\users\admin\appdata\local\temp\sindonswelfare_2021-09-26_15-02.exe
    MD5

    85ea0a07196273bbe4f6c62a03a2f203

    SHA1

    cdd0dffd5d27e3ad577ae8b9d2bb96f6f5dfe04e

    SHA256

    6cb9da1cb79c8725942119d20eceb769f64513380285b8729310ba025f0c4843

    SHA512

    a5f0ce32164d00b13c6d9a88686c4db835366b68260b6e2ce16ad00b44f7c435c4e034d753c9774a7e237f3b02cf16d2983c56b1bc6925baa6d1902b67a2fe80

  • \??\c:\users\admin\appdata\local\temp\solanumsyoghurt_2021-09-26_14-52.exe
    MD5

    105284f4061d970957c38814ed96eec6

    SHA1

    a6a0adb7f986be857be7520da0b498c975b0d845

    SHA256

    5709a8b2658fa9ccf9137f164dae6094d997c0cc42e87cb84f9e6e86087b07ef

    SHA512

    771e64a374320d57f0b0f98272dd3dc657546494bb881efa5984ce4e0cf14c2f9b1aef8a1e269099c80dc9705d5af9f457519d2231150305206848a7d52658a7

  • \ProgramData\mozglue.dll
    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • \ProgramData\msvcp140.dll
    MD5

    109f0f02fd37c84bfc7508d4227d7ed5

    SHA1

    ef7420141bb15ac334d3964082361a460bfdb975

    SHA256

    334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

    SHA512

    46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

  • \ProgramData\nss3.dll
    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • \ProgramData\sqlite3.dll
    MD5

    e477a96c8f2b18d6b5c27bde49c990bf

    SHA1

    e980c9bf41330d1e5bd04556db4646a0210f7409

    SHA256

    16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

    SHA512

    335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

  • \ProgramData\vcruntime140.dll
    MD5

    7587bf9cb4147022cd5681b015183046

    SHA1

    f2106306a8f6f0da5afb7fc765cfa0757ad5a628

    SHA256

    c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

    SHA512

    0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

  • memory/472-71-0x0000000000400000-0x000000000044D000-memory.dmp
    Filesize

    308KB

  • memory/472-70-0x0000000000270000-0x000000000029D000-memory.dmp
    Filesize

    180KB

  • memory/472-67-0x0000000000000000-mapping.dmp
  • memory/588-64-0x0000000000000000-mapping.dmp
  • memory/588-83-0x0000000000240000-0x00000000002D0000-memory.dmp
    Filesize

    576KB

  • memory/588-84-0x0000000000400000-0x00000000004F1000-memory.dmp
    Filesize

    964KB

  • memory/972-90-0x0000000000000000-mapping.dmp
  • memory/972-103-0x0000000001FB0000-0x0000000001FD2000-memory.dmp
    Filesize

    136KB

  • memory/972-100-0x0000000001F80000-0x0000000001FA3000-memory.dmp
    Filesize

    140KB

  • memory/972-102-0x0000000004822000-0x0000000004823000-memory.dmp
    Filesize

    4KB

  • memory/972-112-0x0000000000400000-0x00000000004CB000-memory.dmp
    Filesize

    812KB

  • memory/972-106-0x0000000004824000-0x0000000004826000-memory.dmp
    Filesize

    8KB

  • memory/972-105-0x0000000004823000-0x0000000004824000-memory.dmp
    Filesize

    4KB

  • memory/972-101-0x0000000004821000-0x0000000004822000-memory.dmp
    Filesize

    4KB

  • memory/972-97-0x0000000000230000-0x0000000000267000-memory.dmp
    Filesize

    220KB

  • memory/976-76-0x0000000001010000-0x0000000001011000-memory.dmp
    Filesize

    4KB

  • memory/976-73-0x0000000000000000-mapping.dmp
  • memory/1208-85-0x0000000000000000-mapping.dmp
  • memory/1208-123-0x0000000000000000-mapping.dmp
  • memory/1216-56-0x0000000000220000-0x0000000000229000-memory.dmp
    Filesize

    36KB

  • memory/1268-57-0x0000000002B30000-0x0000000002B46000-memory.dmp
    Filesize

    88KB

  • memory/1348-86-0x0000000000000000-mapping.dmp
  • memory/1684-58-0x0000000000000000-mapping.dmp
  • memory/1684-66-0x0000000000C90000-0x0000000000C91000-memory.dmp
    Filesize

    4KB

  • memory/1684-62-0x00000000001D0000-0x00000000001D1000-memory.dmp
    Filesize

    4KB

  • memory/1708-92-0x0000000000000000-mapping.dmp
  • memory/1708-115-0x0000000010000000-0x0000000010018000-memory.dmp
    Filesize

    96KB

  • memory/1708-108-0x0000000001D20000-0x0000000001DDC000-memory.dmp
    Filesize

    752KB

  • memory/1708-109-0x0000000000400000-0x00000000004C4000-memory.dmp
    Filesize

    784KB

  • memory/1748-110-0x00000000020E4000-0x00000000020E6000-memory.dmp
    Filesize

    8KB

  • memory/1748-111-0x00000000020E3000-0x00000000020E4000-memory.dmp
    Filesize

    4KB

  • memory/1748-94-0x0000000000390000-0x00000000003AF000-memory.dmp
    Filesize

    124KB

  • memory/1748-88-0x0000000000000000-mapping.dmp
  • memory/1748-104-0x0000000000540000-0x000000000055E000-memory.dmp
    Filesize

    120KB

  • memory/1748-99-0x00000000020E1000-0x00000000020E2000-memory.dmp
    Filesize

    4KB

  • memory/1748-98-0x0000000000400000-0x00000000004C5000-memory.dmp
    Filesize

    788KB

  • memory/1748-96-0x00000000020E2000-0x00000000020E3000-memory.dmp
    Filesize

    4KB

  • memory/1748-95-0x00000000002C0000-0x00000000002F0000-memory.dmp
    Filesize

    192KB

  • memory/2044-53-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

  • memory/2044-55-0x0000000075B11000-0x0000000075B13000-memory.dmp
    Filesize

    8KB

  • memory/2044-54-0x0000000000402FA5-mapping.dmp