Analysis

  • max time kernel
    80s
  • max time network
    111s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    07-05-2021 16:04

General

  • Target

    FB06EC887642C3C5C23FB43D9F81C93A.exe

  • Size

    268KB

  • MD5

    fb06ec887642c3c5c23fb43d9f81c93a

  • SHA1

    9fe8ef2fab3c34bd98fade711b8256e0511a1097

  • SHA256

    d00184f7ae894b5bfd832771e9a920f9c399ba785e9a2f89382d499ec32e54a2

  • SHA512

    7443dd4992cdfdfec37dac2deca8bc85539bede8e1de792b64b8a88d6c4d6c81301ce43dfc28bb8839d03881a9a948a7f5da616540db97442685a2ed391cc4dd

Malware Config

Extracted

Family

fickerstealer

C2

truzen.site:80

Extracted

Family

cryptbot

C2

eosbej52.top

morwxi05.top

Extracted

Family

redline

Botnet

MIX 07.05

C2

xisolenoy.xyz:80

Signatures

  • CryptBot

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

  • CryptBot Payload 2 IoCs
  • RedLine

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

  • RedLine Payload 2 IoCs
  • fickerstealer

    Ficker is an infostealer written in Rust and ASM.

  • Downloads MZ/PE file
  • Executes dropped EXE 5 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • 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
  • 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 SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 6 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FB06EC887642C3C5C23FB43D9F81C93A.exe
    "C:\Users\Admin\AppData\Local\Temp\FB06EC887642C3C5C23FB43D9F81C93A.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:624
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\27641234609.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3996
      • C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\27641234609.exe
        "C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\27641234609.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2888
        • C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\27641234609.exe
          "C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\27641234609.exe"
          4⤵
          • Executes dropped EXE
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          PID:1376
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\61044119610.exe" /mix
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3176
      • C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\61044119610.exe
        "C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\61044119610.exe" /mix
        3⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:2092
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\CvbNMOdrsPgMJ & timeout 3 & del /f /q "C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\61044119610.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2888
          • C:\Windows\SysWOW64\timeout.exe
            timeout 3
            5⤵
            • Delays execution with timeout.exe
            PID:3400
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\02035250095.exe" /mix
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:636
      • C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\02035250095.exe
        "C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\02035250095.exe" /mix
        3⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Suspicious use of WriteProcessMemory
        PID:2312
        • C:\Users\Admin\AppData\Roaming\nailedp\edspolishpp.exe
          edspolishpp.exe
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:840
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "FB06EC887642C3C5C23FB43D9F81C93A.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\FB06EC887642C3C5C23FB43D9F81C93A.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4004
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "FB06EC887642C3C5C23FB43D9F81C93A.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3140

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CvbNMOdrsPgMJ\BPAWNQ~1.ZIP
    MD5

    dfeac72d7bc7fed5799ed0efad556ce5

    SHA1

    43634ae7a4bdc273adafdfcbdd767c329510c5cd

    SHA256

    19b166e917a1b0afe95cb623e3662fa1a23dfa851a8e90646b40bf7f7b2e290e

    SHA512

    01a3e0908f0a79d845b644e72e2992f941510ec31045cbb8e6f6fe8378b30ce7911679303b8c9b70ff4d8a4196dfabc19c773b29ce7aa76162e5a55304c58463

  • C:\Users\Admin\AppData\Local\Temp\CvbNMOdrsPgMJ\NQOCTK~1.ZIP
    MD5

    c40d9f11ebd907cde8f7e6fea2b06c9f

    SHA1

    b8fa0f7600c16ccbd234347c49b4778322a8a48c

    SHA256

    b3b56fe0a7bdee1bc4f5987f2c6749c97f590284a52eb8065dee1a5a4a1cda78

    SHA512

    019167234d874a23a29ab99e3244cd58f7df71bad88fa353edf5d4621ef0f4f1eebfde6eb6da7ab41cb8a64485f176567c82c8822f640129a201d1de2eefcf87

  • C:\Users\Admin\AppData\Local\Temp\CvbNMOdrsPgMJ\_Files\_INFOR~1.TXT
    MD5

    810e19968501643f8b2d31fa9d495ab1

    SHA1

    719a9a112fb9940e4c5193ee6c95615b187dc948

    SHA256

    275309b46a3fa5349f95c99bc3be60d062706f93eae45be5969b1af850b6daee

    SHA512

    a211bfe0548399a6b3398c365154d1bc74bd21b7abfc698a6eb97cfb3ea0246d3f90338ff2dec990c5e282b667726ae9c87719023f56506e9e871a0c4efaae8a

  • C:\Users\Admin\AppData\Local\Temp\CvbNMOdrsPgMJ\_Files\_SCREE~1.JPE
    MD5

    923d674a75d2d13fe15e18b5289315a4

    SHA1

    f8f56d325201be07aab8460194a356ace5ef93f5

    SHA256

    2710f5082b738170179c8e563f05b5b8f7625ae93e0960a55e4eac69ab0d7e17

    SHA512

    a975e17ec75d3b549f165311c812ad300ad8c6b1d6dfad07042c3e553927647b956b7bac7d55490a343879a45eda473d3d09b2b5504b77f0667eac07b7045c37

  • C:\Users\Admin\AppData\Local\Temp\CvbNMOdrsPgMJ\files_\SCREEN~1.JPG
    MD5

    923d674a75d2d13fe15e18b5289315a4

    SHA1

    f8f56d325201be07aab8460194a356ace5ef93f5

    SHA256

    2710f5082b738170179c8e563f05b5b8f7625ae93e0960a55e4eac69ab0d7e17

    SHA512

    a975e17ec75d3b549f165311c812ad300ad8c6b1d6dfad07042c3e553927647b956b7bac7d55490a343879a45eda473d3d09b2b5504b77f0667eac07b7045c37

  • C:\Users\Admin\AppData\Local\Temp\CvbNMOdrsPgMJ\files_\SYSTEM~1.TXT
    MD5

    d300b5e453b2bf8da1fa6f478d0c1357

    SHA1

    8d26de9e554b8c70d13b33582a7122dad9b90079

    SHA256

    efa428c20b4d73153a0e9d39252c5a38b0382ff67a0f4b6b8ce699e31b5aa612

    SHA512

    4fca506c5c5963ffb4f21214d5859b5b887c5b48cf82808ad58ba1d0760c70bf98da37a725cec4fb82107680709ea8237fba2e771a9c237249f7adb8cf4efbad

  • C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\02035250095.exe
    MD5

    9479a5596e62700d1972206df64ad7dc

    SHA1

    ba45ab9b18908f8fbafb1d372dba4b819363c5a5

    SHA256

    8286090596289d3f8c6d26e9f048776c61737da6256b0b3e3fb72fa52ae2f9f3

    SHA512

    238ffefb496a688515638aa8fc7840d7c1252d61271c4a075b8c98b3628ff67473d03f37fdd091311c57ed8160a85bd4b5a5cf656d45ed2b0196cf7947c46ce1

  • C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\27641234609.exe
    MD5

    9c23419a5813bde49026b7ffbb315e86

    SHA1

    9664a1d851e6a076228056dc3632b60917e78294

    SHA256

    e9edd89f115b9d7fdd48092e43df7d58b74402b92ce7edadd049ea4b2b57aa1a

    SHA512

    c695ee6ebd929287a407d9a2a36dfa9061ec3470c65690608be461f0dc62939461cf3e6405de82cb2daad96192b88d4e4dc8cae00e467516d6d0ec0c5b0c1023

  • C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\27641234609.exe
    MD5

    9c23419a5813bde49026b7ffbb315e86

    SHA1

    9664a1d851e6a076228056dc3632b60917e78294

    SHA256

    e9edd89f115b9d7fdd48092e43df7d58b74402b92ce7edadd049ea4b2b57aa1a

    SHA512

    c695ee6ebd929287a407d9a2a36dfa9061ec3470c65690608be461f0dc62939461cf3e6405de82cb2daad96192b88d4e4dc8cae00e467516d6d0ec0c5b0c1023

  • C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\27641234609.exe
    MD5

    9c23419a5813bde49026b7ffbb315e86

    SHA1

    9664a1d851e6a076228056dc3632b60917e78294

    SHA256

    e9edd89f115b9d7fdd48092e43df7d58b74402b92ce7edadd049ea4b2b57aa1a

    SHA512

    c695ee6ebd929287a407d9a2a36dfa9061ec3470c65690608be461f0dc62939461cf3e6405de82cb2daad96192b88d4e4dc8cae00e467516d6d0ec0c5b0c1023

  • C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\61044119610.exe
    MD5

    7cae3416822ec2fa1a83a32d64f8f62d

    SHA1

    64b02f9cd5ba4d407b470878abf6e20350eac4e1

    SHA256

    bae34b5431979a214eb8d112e79d305a8474eba7e46fb7470adc48f82010e5b7

    SHA512

    7e44467f071992b798b18cfc705eb4df89712b57af8f026dcc10a1d752f08d385f4e73a53546941b82343bcf50db5c53ffe72f6aa3927d0f110a826c9afa36e6

  • C:\Users\Admin\AppData\Local\Temp\{zKuz-n5Qhp-BxoU-TgJGw}\61044119610.exe
    MD5

    7cae3416822ec2fa1a83a32d64f8f62d

    SHA1

    64b02f9cd5ba4d407b470878abf6e20350eac4e1

    SHA256

    bae34b5431979a214eb8d112e79d305a8474eba7e46fb7470adc48f82010e5b7

    SHA512

    7e44467f071992b798b18cfc705eb4df89712b57af8f026dcc10a1d752f08d385f4e73a53546941b82343bcf50db5c53ffe72f6aa3927d0f110a826c9afa36e6

  • C:\Users\Admin\AppData\Roaming\nailedp\edspolishpp.exe
    MD5

    5f3b587b0213ba0bfadae562d34f51fb

    SHA1

    d2f879f6567c8d579f95f858185269d0f0879c63

    SHA256

    f218fead84ca8d1c5063f776759cc9627cf6baff25bce94641ce4057c800ae52

    SHA512

    a90368e0cf90bb2340de66ee29ab3aa686ca4362645dd336caa03123454d17a31b0bbabe117f443e655089ac2bd990204b8114964296fd351a6d86b8daf8e45d

  • C:\Users\Admin\AppData\Roaming\nailedp\edspolishpp.exe
    MD5

    5f3b587b0213ba0bfadae562d34f51fb

    SHA1

    d2f879f6567c8d579f95f858185269d0f0879c63

    SHA256

    f218fead84ca8d1c5063f776759cc9627cf6baff25bce94641ce4057c800ae52

    SHA512

    a90368e0cf90bb2340de66ee29ab3aa686ca4362645dd336caa03123454d17a31b0bbabe117f443e655089ac2bd990204b8114964296fd351a6d86b8daf8e45d

  • memory/624-114-0x00000000005F0000-0x000000000061F000-memory.dmp
    Filesize

    188KB

  • memory/624-115-0x0000000000400000-0x0000000000455000-memory.dmp
    Filesize

    340KB

  • memory/636-131-0x0000000000000000-mapping.dmp
  • memory/840-165-0x0000000006B10000-0x0000000006B11000-memory.dmp
    Filesize

    4KB

  • memory/840-144-0x00000000029A0000-0x00000000029BE000-memory.dmp
    Filesize

    120KB

  • memory/840-160-0x0000000004E14000-0x0000000004E16000-memory.dmp
    Filesize

    8KB

  • memory/840-164-0x0000000006900000-0x0000000006901000-memory.dmp
    Filesize

    4KB

  • memory/840-163-0x00000000064E0000-0x00000000064E1000-memory.dmp
    Filesize

    4KB

  • memory/840-161-0x00000000059F0000-0x00000000059F1000-memory.dmp
    Filesize

    4KB

  • memory/840-162-0x0000000005B80000-0x0000000005B81000-memory.dmp
    Filesize

    4KB

  • memory/840-138-0x0000000000000000-mapping.dmp
  • memory/840-151-0x0000000005990000-0x0000000005991000-memory.dmp
    Filesize

    4KB

  • memory/840-166-0x0000000007120000-0x0000000007121000-memory.dmp
    Filesize

    4KB

  • memory/840-142-0x0000000000400000-0x000000000085B000-memory.dmp
    Filesize

    4.4MB

  • memory/840-141-0x00000000008A0000-0x00000000008D0000-memory.dmp
    Filesize

    192KB

  • memory/840-143-0x0000000004E10000-0x0000000004E11000-memory.dmp
    Filesize

    4KB

  • memory/840-150-0x0000000005970000-0x0000000005971000-memory.dmp
    Filesize

    4KB

  • memory/840-145-0x0000000004E20000-0x0000000004E21000-memory.dmp
    Filesize

    4KB

  • memory/840-147-0x0000000004E13000-0x0000000004E14000-memory.dmp
    Filesize

    4KB

  • memory/840-146-0x0000000004E12000-0x0000000004E13000-memory.dmp
    Filesize

    4KB

  • memory/840-148-0x0000000004D90000-0x0000000004DAD000-memory.dmp
    Filesize

    116KB

  • memory/840-149-0x0000000005320000-0x0000000005321000-memory.dmp
    Filesize

    4KB

  • memory/1376-124-0x0000000000400000-0x0000000000447000-memory.dmp
    Filesize

    284KB

  • memory/1376-121-0x0000000000401480-mapping.dmp
  • memory/1376-120-0x0000000000400000-0x0000000000447000-memory.dmp
    Filesize

    284KB

  • memory/2092-129-0x0000000002550000-0x0000000002631000-memory.dmp
    Filesize

    900KB

  • memory/2092-126-0x0000000000000000-mapping.dmp
  • memory/2092-130-0x0000000000400000-0x00000000008AF000-memory.dmp
    Filesize

    4.7MB

  • memory/2312-136-0x00000000025F0000-0x00000000026BE000-memory.dmp
    Filesize

    824KB

  • memory/2312-137-0x0000000000400000-0x00000000008A4000-memory.dmp
    Filesize

    4.6MB

  • memory/2312-132-0x0000000000000000-mapping.dmp
  • memory/2888-117-0x0000000000000000-mapping.dmp
  • memory/2888-123-0x0000000000AE0000-0x0000000000B24000-memory.dmp
    Filesize

    272KB

  • memory/2888-152-0x0000000000000000-mapping.dmp
  • memory/3140-135-0x0000000000000000-mapping.dmp
  • memory/3176-125-0x0000000000000000-mapping.dmp
  • memory/3400-159-0x0000000000000000-mapping.dmp
  • memory/3996-116-0x0000000000000000-mapping.dmp
  • memory/4004-134-0x0000000000000000-mapping.dmp