Analysis

  • max time kernel
    42s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    07-05-2021 15:17

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
  • Deletes itself 1 IoCs
  • Loads dropped DLL 7 IoCs
  • 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.

  • Kills process with taskkill 1 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FB06EC887642C3C5C23FB43D9F81C93A.exe
    "C:\Users\Admin\AppData\Local\Temp\FB06EC887642C3C5C23FB43D9F81C93A.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:788
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\00076430329.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:396
      • C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\00076430329.exe
        "C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\00076430329.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:572
        • C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\00076430329.exe
          "C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\00076430329.exe"
          4⤵
          • Executes dropped EXE
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          PID:320
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\18695522343.exe" /mix
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1028
      • C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\18695522343.exe
        "C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\18695522343.exe" /mix
        3⤵
        • Executes dropped EXE
        • Checks processor information in registry
        PID:736
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\16756878951.exe" /mix
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1576
      • C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\16756878951.exe
        "C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\16756878951.exe" /mix
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        • Modifies system certificate store
        • Suspicious use of WriteProcessMemory
        PID:1612
        • C:\Users\Admin\AppData\Roaming\nailedp\edspolishpp.exe
          edspolishpp.exe
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1940
    • 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⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:824
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "FB06EC887642C3C5C23FB43D9F81C93A.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:564

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\00076430329.exe
    MD5

    9c23419a5813bde49026b7ffbb315e86

    SHA1

    9664a1d851e6a076228056dc3632b60917e78294

    SHA256

    e9edd89f115b9d7fdd48092e43df7d58b74402b92ce7edadd049ea4b2b57aa1a

    SHA512

    c695ee6ebd929287a407d9a2a36dfa9061ec3470c65690608be461f0dc62939461cf3e6405de82cb2daad96192b88d4e4dc8cae00e467516d6d0ec0c5b0c1023

  • C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\00076430329.exe
    MD5

    9c23419a5813bde49026b7ffbb315e86

    SHA1

    9664a1d851e6a076228056dc3632b60917e78294

    SHA256

    e9edd89f115b9d7fdd48092e43df7d58b74402b92ce7edadd049ea4b2b57aa1a

    SHA512

    c695ee6ebd929287a407d9a2a36dfa9061ec3470c65690608be461f0dc62939461cf3e6405de82cb2daad96192b88d4e4dc8cae00e467516d6d0ec0c5b0c1023

  • C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\00076430329.exe
    MD5

    9c23419a5813bde49026b7ffbb315e86

    SHA1

    9664a1d851e6a076228056dc3632b60917e78294

    SHA256

    e9edd89f115b9d7fdd48092e43df7d58b74402b92ce7edadd049ea4b2b57aa1a

    SHA512

    c695ee6ebd929287a407d9a2a36dfa9061ec3470c65690608be461f0dc62939461cf3e6405de82cb2daad96192b88d4e4dc8cae00e467516d6d0ec0c5b0c1023

  • C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\16756878951.exe
    MD5

    9479a5596e62700d1972206df64ad7dc

    SHA1

    ba45ab9b18908f8fbafb1d372dba4b819363c5a5

    SHA256

    8286090596289d3f8c6d26e9f048776c61737da6256b0b3e3fb72fa52ae2f9f3

    SHA512

    238ffefb496a688515638aa8fc7840d7c1252d61271c4a075b8c98b3628ff67473d03f37fdd091311c57ed8160a85bd4b5a5cf656d45ed2b0196cf7947c46ce1

  • C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\16756878951.exe
    MD5

    9479a5596e62700d1972206df64ad7dc

    SHA1

    ba45ab9b18908f8fbafb1d372dba4b819363c5a5

    SHA256

    8286090596289d3f8c6d26e9f048776c61737da6256b0b3e3fb72fa52ae2f9f3

    SHA512

    238ffefb496a688515638aa8fc7840d7c1252d61271c4a075b8c98b3628ff67473d03f37fdd091311c57ed8160a85bd4b5a5cf656d45ed2b0196cf7947c46ce1

  • C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\18695522343.exe
    MD5

    7cae3416822ec2fa1a83a32d64f8f62d

    SHA1

    64b02f9cd5ba4d407b470878abf6e20350eac4e1

    SHA256

    bae34b5431979a214eb8d112e79d305a8474eba7e46fb7470adc48f82010e5b7

    SHA512

    7e44467f071992b798b18cfc705eb4df89712b57af8f026dcc10a1d752f08d385f4e73a53546941b82343bcf50db5c53ffe72f6aa3927d0f110a826c9afa36e6

  • C:\Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\18695522343.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

  • \Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\00076430329.exe
    MD5

    9c23419a5813bde49026b7ffbb315e86

    SHA1

    9664a1d851e6a076228056dc3632b60917e78294

    SHA256

    e9edd89f115b9d7fdd48092e43df7d58b74402b92ce7edadd049ea4b2b57aa1a

    SHA512

    c695ee6ebd929287a407d9a2a36dfa9061ec3470c65690608be461f0dc62939461cf3e6405de82cb2daad96192b88d4e4dc8cae00e467516d6d0ec0c5b0c1023

  • \Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\00076430329.exe
    MD5

    9c23419a5813bde49026b7ffbb315e86

    SHA1

    9664a1d851e6a076228056dc3632b60917e78294

    SHA256

    e9edd89f115b9d7fdd48092e43df7d58b74402b92ce7edadd049ea4b2b57aa1a

    SHA512

    c695ee6ebd929287a407d9a2a36dfa9061ec3470c65690608be461f0dc62939461cf3e6405de82cb2daad96192b88d4e4dc8cae00e467516d6d0ec0c5b0c1023

  • \Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\00076430329.exe
    MD5

    9c23419a5813bde49026b7ffbb315e86

    SHA1

    9664a1d851e6a076228056dc3632b60917e78294

    SHA256

    e9edd89f115b9d7fdd48092e43df7d58b74402b92ce7edadd049ea4b2b57aa1a

    SHA512

    c695ee6ebd929287a407d9a2a36dfa9061ec3470c65690608be461f0dc62939461cf3e6405de82cb2daad96192b88d4e4dc8cae00e467516d6d0ec0c5b0c1023

  • \Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\16756878951.exe
    MD5

    9479a5596e62700d1972206df64ad7dc

    SHA1

    ba45ab9b18908f8fbafb1d372dba4b819363c5a5

    SHA256

    8286090596289d3f8c6d26e9f048776c61737da6256b0b3e3fb72fa52ae2f9f3

    SHA512

    238ffefb496a688515638aa8fc7840d7c1252d61271c4a075b8c98b3628ff67473d03f37fdd091311c57ed8160a85bd4b5a5cf656d45ed2b0196cf7947c46ce1

  • \Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\18695522343.exe
    MD5

    7cae3416822ec2fa1a83a32d64f8f62d

    SHA1

    64b02f9cd5ba4d407b470878abf6e20350eac4e1

    SHA256

    bae34b5431979a214eb8d112e79d305a8474eba7e46fb7470adc48f82010e5b7

    SHA512

    7e44467f071992b798b18cfc705eb4df89712b57af8f026dcc10a1d752f08d385f4e73a53546941b82343bcf50db5c53ffe72f6aa3927d0f110a826c9afa36e6

  • \Users\Admin\AppData\Local\Temp\{PJBd-VIotN-FGCJ-sm21q}\18695522343.exe
    MD5

    7cae3416822ec2fa1a83a32d64f8f62d

    SHA1

    64b02f9cd5ba4d407b470878abf6e20350eac4e1

    SHA256

    bae34b5431979a214eb8d112e79d305a8474eba7e46fb7470adc48f82010e5b7

    SHA512

    7e44467f071992b798b18cfc705eb4df89712b57af8f026dcc10a1d752f08d385f4e73a53546941b82343bcf50db5c53ffe72f6aa3927d0f110a826c9afa36e6

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

    5f3b587b0213ba0bfadae562d34f51fb

    SHA1

    d2f879f6567c8d579f95f858185269d0f0879c63

    SHA256

    f218fead84ca8d1c5063f776759cc9627cf6baff25bce94641ce4057c800ae52

    SHA512

    a90368e0cf90bb2340de66ee29ab3aa686ca4362645dd336caa03123454d17a31b0bbabe117f443e655089ac2bd990204b8114964296fd351a6d86b8daf8e45d

  • memory/320-69-0x0000000000400000-0x0000000000447000-memory.dmp
    Filesize

    284KB

  • memory/320-74-0x0000000000400000-0x0000000000447000-memory.dmp
    Filesize

    284KB

  • memory/320-70-0x0000000000401480-mapping.dmp
  • memory/396-62-0x0000000000000000-mapping.dmp
  • memory/564-90-0x0000000000000000-mapping.dmp
  • memory/572-66-0x0000000000000000-mapping.dmp
  • memory/572-73-0x0000000000220000-0x0000000000264000-memory.dmp
    Filesize

    272KB

  • memory/736-79-0x0000000000000000-mapping.dmp
  • memory/736-82-0x0000000000220000-0x0000000000301000-memory.dmp
    Filesize

    900KB

  • memory/736-83-0x0000000000400000-0x00000000008AF000-memory.dmp
    Filesize

    4.7MB

  • memory/788-60-0x0000000000220000-0x000000000024F000-memory.dmp
    Filesize

    188KB

  • memory/788-61-0x0000000000400000-0x0000000000455000-memory.dmp
    Filesize

    340KB

  • memory/788-59-0x0000000075A71000-0x0000000075A73000-memory.dmp
    Filesize

    8KB

  • memory/824-89-0x0000000000000000-mapping.dmp
  • memory/1028-75-0x0000000000000000-mapping.dmp
  • memory/1576-84-0x0000000000000000-mapping.dmp
  • memory/1612-92-0x0000000000920000-0x00000000009EE000-memory.dmp
    Filesize

    824KB

  • memory/1612-93-0x0000000000400000-0x00000000008A4000-memory.dmp
    Filesize

    4.6MB

  • memory/1612-87-0x0000000000000000-mapping.dmp
  • memory/1940-95-0x0000000000000000-mapping.dmp
  • memory/1940-97-0x00000000002C0000-0x00000000002F0000-memory.dmp
    Filesize

    192KB

  • memory/1940-98-0x0000000000400000-0x000000000085B000-memory.dmp
    Filesize

    4.4MB

  • memory/1940-99-0x00000000022C0000-0x00000000022DE000-memory.dmp
    Filesize

    120KB

  • memory/1940-100-0x0000000002390000-0x00000000023AD000-memory.dmp
    Filesize

    116KB

  • memory/1940-103-0x0000000004D13000-0x0000000004D14000-memory.dmp
    Filesize

    4KB

  • memory/1940-102-0x0000000004D12000-0x0000000004D13000-memory.dmp
    Filesize

    4KB

  • memory/1940-101-0x0000000004D11000-0x0000000004D12000-memory.dmp
    Filesize

    4KB

  • memory/1940-104-0x0000000004D14000-0x0000000004D16000-memory.dmp
    Filesize

    8KB