Analysis

  • max time kernel
    151s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    25-10-2021 03:29

General

  • Target

    ad35666e25c3db6923095b96f30dfa1768af186d4aa12f811f522e695198803c.exe

  • Size

    336KB

  • MD5

    cf087f0c96950b797ba3213d2383acaa

  • SHA1

    8c2b04a0c3868e16f0265bb6c3242e1c7a62c156

  • SHA256

    ad35666e25c3db6923095b96f30dfa1768af186d4aa12f811f522e695198803c

  • SHA512

    abba920aa0cdd379a76ae2b5b828696ad80dda9a3d75d8c6ed50246c100049f31a6796b0ac586ff9094d7b567754c95e8341c57d029f12693c0de4e3436c7230

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://xacokuo8.top/

http://hajezey1.top/

rc4.i32
rc4.i32

Signatures

  • 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.

  • Downloads MZ/PE file
  • Executes dropped EXE 8 IoCs
  • Deletes itself 1 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.

  • Suspicious use of SetThreadContext 5 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 31 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ad35666e25c3db6923095b96f30dfa1768af186d4aa12f811f522e695198803c.exe
    "C:\Users\Admin\AppData\Local\Temp\ad35666e25c3db6923095b96f30dfa1768af186d4aa12f811f522e695198803c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2708
    • C:\Users\Admin\AppData\Local\Temp\ad35666e25c3db6923095b96f30dfa1768af186d4aa12f811f522e695198803c.exe
      "C:\Users\Admin\AppData\Local\Temp\ad35666e25c3db6923095b96f30dfa1768af186d4aa12f811f522e695198803c.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3136
  • C:\Users\Admin\AppData\Roaming\frrawja
    C:\Users\Admin\AppData\Roaming\frrawja
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3988
    • C:\Users\Admin\AppData\Roaming\frrawja
      C:\Users\Admin\AppData\Roaming\frrawja
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2980
  • C:\Users\Admin\AppData\Local\Temp\8950.exe
    C:\Users\Admin\AppData\Local\Temp\8950.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3160
    • C:\Users\Admin\AppData\Local\Temp\8950.exe
      C:\Users\Admin\AppData\Local\Temp\8950.exe
      2⤵
      • Executes dropped EXE
      PID:64
  • C:\Users\Admin\AppData\Local\Temp\673E.exe
    C:\Users\Admin\AppData\Local\Temp\673E.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:708
    • C:\Users\Admin\AppData\Local\Temp\673E.exe
      C:\Users\Admin\AppData\Local\Temp\673E.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1460
  • C:\Users\Admin\AppData\Local\Temp\7A79.exe
    C:\Users\Admin\AppData\Local\Temp\7A79.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2904
    • C:\Users\Admin\AppData\Local\Temp\7A79.exe
      C:\Users\Admin\AppData\Local\Temp\7A79.exe
      2⤵
      • Executes dropped EXE
      PID:1828
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1828 -s 24
        3⤵
        • Program crash
        PID:3040

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\673E.exe.log
    MD5

    605f809fab8c19729d39d075f7ffdb53

    SHA1

    c546f877c9bd53563174a90312a8337fdfc5fdd9

    SHA256

    6904d540649e76c55f99530b81be17e099184bb4cad415aa9b9b39cc3677f556

    SHA512

    82cc12c3186ae23884b8d5c104638c8206272c4389ade56b926dfc1d437b03888159b3c790b188b54d277a262e731927e703e680ea642e1417faee27443fd5b3

  • C:\Users\Admin\AppData\Local\Temp\673E.exe
    MD5

    4ae44e9cb5a3f3d5f40d52c71bdef439

    SHA1

    06d591028442b6e18e36f9495ee53d6be6d3a273

    SHA256

    153b903cf8c24a57937304fafc9c77e1abfa650244f29a141c57d1ba391dc1e0

    SHA512

    f42ab8cb503805282a03f6ecbb90d7db65fd057c3f4f9904fa814c488aeae6aa7105ca528c8a7b20d74ebceb4149c9f16c75f07a95db5f2bccbe3b5be2f1febf

  • C:\Users\Admin\AppData\Local\Temp\673E.exe
    MD5

    4ae44e9cb5a3f3d5f40d52c71bdef439

    SHA1

    06d591028442b6e18e36f9495ee53d6be6d3a273

    SHA256

    153b903cf8c24a57937304fafc9c77e1abfa650244f29a141c57d1ba391dc1e0

    SHA512

    f42ab8cb503805282a03f6ecbb90d7db65fd057c3f4f9904fa814c488aeae6aa7105ca528c8a7b20d74ebceb4149c9f16c75f07a95db5f2bccbe3b5be2f1febf

  • C:\Users\Admin\AppData\Local\Temp\673E.exe
    MD5

    4ae44e9cb5a3f3d5f40d52c71bdef439

    SHA1

    06d591028442b6e18e36f9495ee53d6be6d3a273

    SHA256

    153b903cf8c24a57937304fafc9c77e1abfa650244f29a141c57d1ba391dc1e0

    SHA512

    f42ab8cb503805282a03f6ecbb90d7db65fd057c3f4f9904fa814c488aeae6aa7105ca528c8a7b20d74ebceb4149c9f16c75f07a95db5f2bccbe3b5be2f1febf

  • C:\Users\Admin\AppData\Local\Temp\7A79.exe
    MD5

    0cafd553a0f55d525a5ec0ec6c2c06bd

    SHA1

    621e411916749c72cdc4d97f46b843bb758659c1

    SHA256

    3acca9f2af679c0cba972e71c88871397132c5f389a5beffa7710204b0c81987

    SHA512

    b56e4a59cc314ba533cb0c2d763482de28320f7f2c8eb73d9209745f61b4e22b041756d5c20775a0afab67f86eb68c1267b76b5da1baffbadc75b6ffeda3fdb9

  • C:\Users\Admin\AppData\Local\Temp\7A79.exe
    MD5

    0cafd553a0f55d525a5ec0ec6c2c06bd

    SHA1

    621e411916749c72cdc4d97f46b843bb758659c1

    SHA256

    3acca9f2af679c0cba972e71c88871397132c5f389a5beffa7710204b0c81987

    SHA512

    b56e4a59cc314ba533cb0c2d763482de28320f7f2c8eb73d9209745f61b4e22b041756d5c20775a0afab67f86eb68c1267b76b5da1baffbadc75b6ffeda3fdb9

  • C:\Users\Admin\AppData\Local\Temp\7A79.exe
    MD5

    0cafd553a0f55d525a5ec0ec6c2c06bd

    SHA1

    621e411916749c72cdc4d97f46b843bb758659c1

    SHA256

    3acca9f2af679c0cba972e71c88871397132c5f389a5beffa7710204b0c81987

    SHA512

    b56e4a59cc314ba533cb0c2d763482de28320f7f2c8eb73d9209745f61b4e22b041756d5c20775a0afab67f86eb68c1267b76b5da1baffbadc75b6ffeda3fdb9

  • C:\Users\Admin\AppData\Local\Temp\8950.exe
    MD5

    cf087f0c96950b797ba3213d2383acaa

    SHA1

    8c2b04a0c3868e16f0265bb6c3242e1c7a62c156

    SHA256

    ad35666e25c3db6923095b96f30dfa1768af186d4aa12f811f522e695198803c

    SHA512

    abba920aa0cdd379a76ae2b5b828696ad80dda9a3d75d8c6ed50246c100049f31a6796b0ac586ff9094d7b567754c95e8341c57d029f12693c0de4e3436c7230

  • C:\Users\Admin\AppData\Local\Temp\8950.exe
    MD5

    cf087f0c96950b797ba3213d2383acaa

    SHA1

    8c2b04a0c3868e16f0265bb6c3242e1c7a62c156

    SHA256

    ad35666e25c3db6923095b96f30dfa1768af186d4aa12f811f522e695198803c

    SHA512

    abba920aa0cdd379a76ae2b5b828696ad80dda9a3d75d8c6ed50246c100049f31a6796b0ac586ff9094d7b567754c95e8341c57d029f12693c0de4e3436c7230

  • C:\Users\Admin\AppData\Local\Temp\8950.exe
    MD5

    cf087f0c96950b797ba3213d2383acaa

    SHA1

    8c2b04a0c3868e16f0265bb6c3242e1c7a62c156

    SHA256

    ad35666e25c3db6923095b96f30dfa1768af186d4aa12f811f522e695198803c

    SHA512

    abba920aa0cdd379a76ae2b5b828696ad80dda9a3d75d8c6ed50246c100049f31a6796b0ac586ff9094d7b567754c95e8341c57d029f12693c0de4e3436c7230

  • C:\Users\Admin\AppData\Roaming\frrawja
    MD5

    cf087f0c96950b797ba3213d2383acaa

    SHA1

    8c2b04a0c3868e16f0265bb6c3242e1c7a62c156

    SHA256

    ad35666e25c3db6923095b96f30dfa1768af186d4aa12f811f522e695198803c

    SHA512

    abba920aa0cdd379a76ae2b5b828696ad80dda9a3d75d8c6ed50246c100049f31a6796b0ac586ff9094d7b567754c95e8341c57d029f12693c0de4e3436c7230

  • C:\Users\Admin\AppData\Roaming\frrawja
    MD5

    cf087f0c96950b797ba3213d2383acaa

    SHA1

    8c2b04a0c3868e16f0265bb6c3242e1c7a62c156

    SHA256

    ad35666e25c3db6923095b96f30dfa1768af186d4aa12f811f522e695198803c

    SHA512

    abba920aa0cdd379a76ae2b5b828696ad80dda9a3d75d8c6ed50246c100049f31a6796b0ac586ff9094d7b567754c95e8341c57d029f12693c0de4e3436c7230

  • C:\Users\Admin\AppData\Roaming\frrawja
    MD5

    cf087f0c96950b797ba3213d2383acaa

    SHA1

    8c2b04a0c3868e16f0265bb6c3242e1c7a62c156

    SHA256

    ad35666e25c3db6923095b96f30dfa1768af186d4aa12f811f522e695198803c

    SHA512

    abba920aa0cdd379a76ae2b5b828696ad80dda9a3d75d8c6ed50246c100049f31a6796b0ac586ff9094d7b567754c95e8341c57d029f12693c0de4e3436c7230

  • memory/64-131-0x0000000000402E0C-mapping.dmp
  • memory/708-137-0x0000000000CB0000-0x0000000000CB1000-memory.dmp
    Filesize

    4KB

  • memory/708-134-0x0000000000000000-mapping.dmp
  • memory/1460-141-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1460-152-0x00000000058C0000-0x00000000058C1000-memory.dmp
    Filesize

    4KB

  • memory/1460-169-0x0000000007900000-0x0000000007901000-memory.dmp
    Filesize

    4KB

  • memory/1460-168-0x0000000007200000-0x0000000007201000-memory.dmp
    Filesize

    4KB

  • memory/1460-167-0x0000000006700000-0x0000000006701000-memory.dmp
    Filesize

    4KB

  • memory/1460-164-0x0000000005C40000-0x0000000005C41000-memory.dmp
    Filesize

    4KB

  • memory/1460-159-0x0000000005840000-0x0000000005841000-memory.dmp
    Filesize

    4KB

  • memory/1460-142-0x000000000043713E-mapping.dmp
  • memory/1460-158-0x00000000057E0000-0x00000000057E1000-memory.dmp
    Filesize

    4KB

  • memory/1460-156-0x00000000058D0000-0x00000000058D1000-memory.dmp
    Filesize

    4KB

  • memory/1460-155-0x0000000005780000-0x0000000005781000-memory.dmp
    Filesize

    4KB

  • memory/1460-154-0x0000000005EE0000-0x0000000005EE1000-memory.dmp
    Filesize

    4KB

  • memory/1460-150-0x0000000001610000-0x0000000001611000-memory.dmp
    Filesize

    4KB

  • memory/1828-161-0x0000000000418D2A-mapping.dmp
  • memory/1828-160-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/2708-116-0x0000000000030000-0x0000000000039000-memory.dmp
    Filesize

    36KB

  • memory/2708-115-0x00000000012C1000-0x00000000012D2000-memory.dmp
    Filesize

    68KB

  • memory/2904-151-0x0000000005690000-0x0000000005691000-memory.dmp
    Filesize

    4KB

  • memory/2904-149-0x00000000056F0000-0x00000000056F1000-memory.dmp
    Filesize

    4KB

  • memory/2904-145-0x0000000000EB0000-0x0000000000EB1000-memory.dmp
    Filesize

    4KB

  • memory/2904-157-0x0000000005E50000-0x0000000005E51000-memory.dmp
    Filesize

    4KB

  • memory/2904-139-0x0000000000000000-mapping.dmp
  • memory/2904-153-0x0000000005940000-0x0000000005941000-memory.dmp
    Filesize

    4KB

  • memory/2980-124-0x0000000000402E0C-mapping.dmp
  • memory/3004-133-0x00000000008C0000-0x00000000008D6000-memory.dmp
    Filesize

    88KB

  • memory/3004-119-0x0000000000650000-0x0000000000666000-memory.dmp
    Filesize

    88KB

  • memory/3136-118-0x0000000000402E0C-mapping.dmp
  • memory/3136-117-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

  • memory/3160-126-0x0000000000000000-mapping.dmp
  • memory/3160-129-0x0000000001191000-0x00000000011A1000-memory.dmp
    Filesize

    64KB