Analysis

  • max time kernel
    79s
  • max time network
    144s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    02-11-2020 09:15

General

  • Target

    48a7b45d8b21337b1c63394fa34b2dfa.exe

  • Size

    667KB

  • MD5

    48a7b45d8b21337b1c63394fa34b2dfa

  • SHA1

    815c1c6e843a1c8b9ead4e78038792e731b0cedf

  • SHA256

    2224e77a950a10ddf527d06e3083641ef929afcf2eb7d195f749f404a511f4c2

  • SHA512

    280436837a57cb92b1f10b929828e94064f1df816cf6b9ffe77e8274f96a05e4d56d8ef1f7b56c0d84e0b1e2e603955adb55afa7257a6ab295d427eb2571eb7f

Score
10/10

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 43 IoCs
  • Executes dropped EXE 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 9 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\48a7b45d8b21337b1c63394fa34b2dfa.exe
    "C:\Users\Admin\AppData\Local\Temp\48a7b45d8b21337b1c63394fa34b2dfa.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4768
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 760
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3104
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 792
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4188
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 1212
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3176
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 1572
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:644
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 1580
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:428
    • C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe
      bestof.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1396
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4052
    • C:\Users\Admin\AppData\Roaming\gfersesurity\bestofd.exe
      bestofd.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4452
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4452 -s 532
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:4544
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4452 -s 700
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:4556
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4452 -s 1256
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:2596
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4452 -s 1304
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:2804

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe
    MD5

    b77a1d58626a5d4a77202afbf717accb

    SHA1

    1a37bf11e2b75384785d05780fe17fe1167bfbb1

    SHA256

    a0a1952f947eaea5f54da2c343da0dc0ef5cd7bc58fe27f1dbf4e7199e757a13

    SHA512

    d12789afcdf0b6dc4dfd5c944c56466c3305b1f87670a038401e22a27ee8980b11a6039e73c4729c731dfd241fdb84c7c850c6ee2cd04bdfac6d5f5b2c8fff26

  • C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe
    MD5

    b77a1d58626a5d4a77202afbf717accb

    SHA1

    1a37bf11e2b75384785d05780fe17fe1167bfbb1

    SHA256

    a0a1952f947eaea5f54da2c343da0dc0ef5cd7bc58fe27f1dbf4e7199e757a13

    SHA512

    d12789afcdf0b6dc4dfd5c944c56466c3305b1f87670a038401e22a27ee8980b11a6039e73c4729c731dfd241fdb84c7c850c6ee2cd04bdfac6d5f5b2c8fff26

  • C:\Users\Admin\AppData\Roaming\gfersesurity\bestofd.exe
    MD5

    72131adb0e2315281aae445db11e09a2

    SHA1

    712ca2ebaa7d9bc9bbe18f7843954cfb0d22b08e

    SHA256

    9ea7a66f0c3dc13ddfc6f05d95049dd7f641053a380578a12013db9f72367f65

    SHA512

    bbc68fa0c586aaa7227da59848407672e7629e8f1289384add8638c21bab69d41495bcfc7881446b527e5aa4db14e1babc4f71dfee32b69705e6d3b64bf46a22

  • C:\Users\Admin\AppData\Roaming\gfersesurity\bestofd.exe
    MD5

    72131adb0e2315281aae445db11e09a2

    SHA1

    712ca2ebaa7d9bc9bbe18f7843954cfb0d22b08e

    SHA256

    9ea7a66f0c3dc13ddfc6f05d95049dd7f641053a380578a12013db9f72367f65

    SHA512

    bbc68fa0c586aaa7227da59848407672e7629e8f1289384add8638c21bab69d41495bcfc7881446b527e5aa4db14e1babc4f71dfee32b69705e6d3b64bf46a22

  • memory/428-21-0x0000000005370000-0x0000000005371000-memory.dmp
    Filesize

    4KB

  • memory/428-18-0x0000000004D40000-0x0000000004D41000-memory.dmp
    Filesize

    4KB

  • memory/644-17-0x0000000004E30000-0x0000000004E31000-memory.dmp
    Filesize

    4KB

  • memory/644-14-0x0000000004700000-0x0000000004701000-memory.dmp
    Filesize

    4KB

  • memory/1396-25-0x0000000072480000-0x0000000072B6E000-memory.dmp
    Filesize

    6.9MB

  • memory/1396-22-0x0000000000000000-mapping.dmp
  • memory/1396-26-0x0000000000F70000-0x0000000000F71000-memory.dmp
    Filesize

    4KB

  • memory/2596-101-0x0000000005280000-0x0000000005281000-memory.dmp
    Filesize

    4KB

  • memory/2596-91-0x0000000004950000-0x0000000004951000-memory.dmp
    Filesize

    4KB

  • memory/2804-107-0x0000000004C40000-0x0000000004C41000-memory.dmp
    Filesize

    4KB

  • memory/2804-119-0x00000000054B0000-0x00000000054B1000-memory.dmp
    Filesize

    4KB

  • memory/3104-5-0x0000000005060000-0x0000000005061000-memory.dmp
    Filesize

    4KB

  • memory/3104-3-0x0000000004B30000-0x0000000004B31000-memory.dmp
    Filesize

    4KB

  • memory/3104-2-0x0000000004B30000-0x0000000004B31000-memory.dmp
    Filesize

    4KB

  • memory/3176-13-0x0000000005100000-0x0000000005101000-memory.dmp
    Filesize

    4KB

  • memory/3176-10-0x00000000048D0000-0x00000000048D1000-memory.dmp
    Filesize

    4KB

  • memory/4052-96-0x00000000074F0000-0x00000000074F1000-memory.dmp
    Filesize

    4KB

  • memory/4052-29-0x000000000040CD2F-mapping.dmp
  • memory/4052-32-0x0000000072480000-0x0000000072B6E000-memory.dmp
    Filesize

    6.9MB

  • memory/4052-33-0x0000000002FB0000-0x0000000002FD4000-memory.dmp
    Filesize

    144KB

  • memory/4052-34-0x0000000005A20000-0x0000000005A21000-memory.dmp
    Filesize

    4KB

  • memory/4052-35-0x0000000003150000-0x0000000003172000-memory.dmp
    Filesize

    136KB

  • memory/4052-36-0x0000000006530000-0x0000000006531000-memory.dmp
    Filesize

    4KB

  • memory/4052-37-0x0000000005580000-0x0000000005581000-memory.dmp
    Filesize

    4KB

  • memory/4052-82-0x0000000007510000-0x0000000007511000-memory.dmp
    Filesize

    4KB

  • memory/4052-30-0x0000000000400000-0x0000000000436000-memory.dmp
    Filesize

    216KB

  • memory/4052-40-0x0000000005560000-0x0000000005561000-memory.dmp
    Filesize

    4KB

  • memory/4052-80-0x0000000006E10000-0x0000000006E11000-memory.dmp
    Filesize

    4KB

  • memory/4052-42-0x00000000055D0000-0x00000000055D1000-memory.dmp
    Filesize

    4KB

  • memory/4052-86-0x0000000007080000-0x0000000007081000-memory.dmp
    Filesize

    4KB

  • memory/4052-31-0x0000000002CF0000-0x0000000002CF1000-memory.dmp
    Filesize

    4KB

  • memory/4052-28-0x0000000000400000-0x0000000000436000-memory.dmp
    Filesize

    216KB

  • memory/4052-47-0x0000000005860000-0x0000000005861000-memory.dmp
    Filesize

    4KB

  • memory/4052-89-0x00000000071A0000-0x00000000071A1000-memory.dmp
    Filesize

    4KB

  • memory/4052-87-0x0000000007120000-0x0000000007121000-memory.dmp
    Filesize

    4KB

  • memory/4188-9-0x0000000004890000-0x0000000004891000-memory.dmp
    Filesize

    4KB

  • memory/4188-6-0x0000000004360000-0x0000000004361000-memory.dmp
    Filesize

    4KB

  • memory/4452-99-0x0000000000000000-mapping.dmp
  • memory/4452-45-0x0000000004460000-0x0000000004461000-memory.dmp
    Filesize

    4KB

  • memory/4452-54-0x0000000000000000-mapping.dmp
  • memory/4452-55-0x0000000000000000-mapping.dmp
  • memory/4452-120-0x0000000000000000-mapping.dmp
  • memory/4452-57-0x0000000000000000-mapping.dmp
  • memory/4452-58-0x0000000000000000-mapping.dmp
  • memory/4452-59-0x0000000000000000-mapping.dmp
  • memory/4452-60-0x0000000000000000-mapping.dmp
  • memory/4452-116-0x0000000000000000-mapping.dmp
  • memory/4452-64-0x0000000000000000-mapping.dmp
  • memory/4452-65-0x0000000000000000-mapping.dmp
  • memory/4452-67-0x0000000000000000-mapping.dmp
  • memory/4452-66-0x0000000000000000-mapping.dmp
  • memory/4452-68-0x0000000000000000-mapping.dmp
  • memory/4452-118-0x0000000000000000-mapping.dmp
  • memory/4452-70-0x0000000000000000-mapping.dmp
  • memory/4452-71-0x0000000000000000-mapping.dmp
  • memory/4452-72-0x0000000000000000-mapping.dmp
  • memory/4452-73-0x0000000000000000-mapping.dmp
  • memory/4452-74-0x0000000003F50000-0x0000000003F74000-memory.dmp
    Filesize

    144KB

  • memory/4452-76-0x0000000004230000-0x0000000004252000-memory.dmp
    Filesize

    136KB

  • memory/4452-52-0x0000000000000000-mapping.dmp
  • memory/4452-51-0x0000000000000000-mapping.dmp
  • memory/4452-117-0x0000000000000000-mapping.dmp
  • memory/4452-115-0x0000000000000000-mapping.dmp
  • memory/4452-46-0x0000000072480000-0x0000000072B6E000-memory.dmp
    Filesize

    6.9MB

  • memory/4452-53-0x0000000000000000-mapping.dmp
  • memory/4452-94-0x0000000000000000-mapping.dmp
  • memory/4452-114-0x0000000000000000-mapping.dmp
  • memory/4452-97-0x0000000000000000-mapping.dmp
  • memory/4452-98-0x0000000000000000-mapping.dmp
  • memory/4452-95-0x0000000000000000-mapping.dmp
  • memory/4452-44-0x0000000004090000-0x0000000004091000-memory.dmp
    Filesize

    4KB

  • memory/4452-100-0x0000000000000000-mapping.dmp
  • memory/4452-43-0x0000000002554000-0x0000000002555000-memory.dmp
    Filesize

    4KB

  • memory/4452-102-0x0000000000000000-mapping.dmp
  • memory/4452-103-0x0000000000000000-mapping.dmp
  • memory/4452-104-0x0000000000000000-mapping.dmp
  • memory/4452-105-0x0000000000000000-mapping.dmp
  • memory/4452-106-0x0000000000000000-mapping.dmp
  • memory/4452-38-0x0000000000000000-mapping.dmp
  • memory/4452-111-0x0000000000000000-mapping.dmp
  • memory/4452-112-0x0000000000000000-mapping.dmp
  • memory/4452-110-0x0000000000000000-mapping.dmp
  • memory/4452-113-0x0000000000000000-mapping.dmp
  • memory/4544-48-0x00000000049C0000-0x00000000049C1000-memory.dmp
    Filesize

    4KB

  • memory/4544-49-0x00000000049C0000-0x00000000049C1000-memory.dmp
    Filesize

    4KB

  • memory/4544-56-0x0000000005200000-0x0000000005201000-memory.dmp
    Filesize

    4KB

  • memory/4556-69-0x0000000004930000-0x0000000004931000-memory.dmp
    Filesize

    4KB

  • memory/4556-61-0x0000000004300000-0x0000000004301000-memory.dmp
    Filesize

    4KB

  • memory/4768-0-0x00000000024B3000-0x00000000024B4000-memory.dmp
    Filesize

    4KB

  • memory/4768-1-0x0000000002870000-0x0000000002871000-memory.dmp
    Filesize

    4KB