Analysis

  • max time kernel
    151s
  • max time network
    165s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    25-10-2021 06:16

General

  • Target

    78405ac19dbdcadaa27e24185f5ca4f0.exe

  • Size

    336KB

  • MD5

    78405ac19dbdcadaa27e24185f5ca4f0

  • SHA1

    92bf990d51a29e3578a05e76ec6a9851497d1f60

  • SHA256

    a499e99f2ec3aef0ed06f1d8c2c5b5752bdf1575cba0b2230ea49f810f2db7d4

  • SHA512

    43d09e6672a647215bc55485d605bdf183f759ee050537eecdc4e9021338c298f3e9c37c0f7196ede22580f212cc466565cceb4ee4efc064bfeb455410e6b31e

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 5 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Executes dropped EXE 6 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 4 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 38 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\78405ac19dbdcadaa27e24185f5ca4f0.exe
    "C:\Users\Admin\AppData\Local\Temp\78405ac19dbdcadaa27e24185f5ca4f0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1664
    • C:\Users\Admin\AppData\Local\Temp\78405ac19dbdcadaa27e24185f5ca4f0.exe
      "C:\Users\Admin\AppData\Local\Temp\78405ac19dbdcadaa27e24185f5ca4f0.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3216
  • C:\Users\Admin\AppData\Local\Temp\DAAC.exe
    C:\Users\Admin\AppData\Local\Temp\DAAC.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2684
    • C:\Users\Admin\AppData\Local\Temp\DAAC.exe
      C:\Users\Admin\AppData\Local\Temp\DAAC.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2912
  • C:\Users\Admin\AppData\Local\Temp\4677.exe
    C:\Users\Admin\AppData\Local\Temp\4677.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1292
    • C:\Users\Admin\AppData\Local\Temp\4677.exe
      C:\Users\Admin\AppData\Local\Temp\4677.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1172
  • C:\Users\Admin\AppData\Local\Temp\5983.exe
    C:\Users\Admin\AppData\Local\Temp\5983.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Users\Admin\AppData\Local\Temp\5983.exe
      C:\Users\Admin\AppData\Local\Temp\5983.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1812

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4677.exe.log

    MD5

    605f809fab8c19729d39d075f7ffdb53

    SHA1

    c546f877c9bd53563174a90312a8337fdfc5fdd9

    SHA256

    6904d540649e76c55f99530b81be17e099184bb4cad415aa9b9b39cc3677f556

    SHA512

    82cc12c3186ae23884b8d5c104638c8206272c4389ade56b926dfc1d437b03888159b3c790b188b54d277a262e731927e703e680ea642e1417faee27443fd5b3

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\5983.exe.log

    MD5

    41fbed686f5700fc29aaccf83e8ba7fd

    SHA1

    5271bc29538f11e42a3b600c8dc727186e912456

    SHA256

    df4e9d012687cdabd15e86bf37be15d6c822e1f50dde530a02468f0006586437

    SHA512

    234b2235c1ced25810a4121c5eabcbf9f269e82c126a1adc363ee34478173f8b462e90eb53f5f11533641663350b90ec1e2360fd805b10c041fab12f4da7a034

  • C:\Users\Admin\AppData\Local\Temp\4677.exe

    MD5

    4ae44e9cb5a3f3d5f40d52c71bdef439

    SHA1

    06d591028442b6e18e36f9495ee53d6be6d3a273

    SHA256

    153b903cf8c24a57937304fafc9c77e1abfa650244f29a141c57d1ba391dc1e0

    SHA512

    f42ab8cb503805282a03f6ecbb90d7db65fd057c3f4f9904fa814c488aeae6aa7105ca528c8a7b20d74ebceb4149c9f16c75f07a95db5f2bccbe3b5be2f1febf

  • C:\Users\Admin\AppData\Local\Temp\4677.exe

    MD5

    4ae44e9cb5a3f3d5f40d52c71bdef439

    SHA1

    06d591028442b6e18e36f9495ee53d6be6d3a273

    SHA256

    153b903cf8c24a57937304fafc9c77e1abfa650244f29a141c57d1ba391dc1e0

    SHA512

    f42ab8cb503805282a03f6ecbb90d7db65fd057c3f4f9904fa814c488aeae6aa7105ca528c8a7b20d74ebceb4149c9f16c75f07a95db5f2bccbe3b5be2f1febf

  • C:\Users\Admin\AppData\Local\Temp\4677.exe

    MD5

    4ae44e9cb5a3f3d5f40d52c71bdef439

    SHA1

    06d591028442b6e18e36f9495ee53d6be6d3a273

    SHA256

    153b903cf8c24a57937304fafc9c77e1abfa650244f29a141c57d1ba391dc1e0

    SHA512

    f42ab8cb503805282a03f6ecbb90d7db65fd057c3f4f9904fa814c488aeae6aa7105ca528c8a7b20d74ebceb4149c9f16c75f07a95db5f2bccbe3b5be2f1febf

  • C:\Users\Admin\AppData\Local\Temp\5983.exe

    MD5

    0cafd553a0f55d525a5ec0ec6c2c06bd

    SHA1

    621e411916749c72cdc4d97f46b843bb758659c1

    SHA256

    3acca9f2af679c0cba972e71c88871397132c5f389a5beffa7710204b0c81987

    SHA512

    b56e4a59cc314ba533cb0c2d763482de28320f7f2c8eb73d9209745f61b4e22b041756d5c20775a0afab67f86eb68c1267b76b5da1baffbadc75b6ffeda3fdb9

  • C:\Users\Admin\AppData\Local\Temp\5983.exe

    MD5

    0cafd553a0f55d525a5ec0ec6c2c06bd

    SHA1

    621e411916749c72cdc4d97f46b843bb758659c1

    SHA256

    3acca9f2af679c0cba972e71c88871397132c5f389a5beffa7710204b0c81987

    SHA512

    b56e4a59cc314ba533cb0c2d763482de28320f7f2c8eb73d9209745f61b4e22b041756d5c20775a0afab67f86eb68c1267b76b5da1baffbadc75b6ffeda3fdb9

  • C:\Users\Admin\AppData\Local\Temp\5983.exe

    MD5

    0cafd553a0f55d525a5ec0ec6c2c06bd

    SHA1

    621e411916749c72cdc4d97f46b843bb758659c1

    SHA256

    3acca9f2af679c0cba972e71c88871397132c5f389a5beffa7710204b0c81987

    SHA512

    b56e4a59cc314ba533cb0c2d763482de28320f7f2c8eb73d9209745f61b4e22b041756d5c20775a0afab67f86eb68c1267b76b5da1baffbadc75b6ffeda3fdb9

  • C:\Users\Admin\AppData\Local\Temp\DAAC.exe

    MD5

    3ba0b3a3b6d2a66d507acb1f10a24434

    SHA1

    644a4f467c21f8693f7f3c8788360ac3df0fa525

    SHA256

    3d054e3e93c3fccafea80b7e225da90d205282662800aec4624d0641631202b8

    SHA512

    dafa6f2a947598d690441bc418c06bc0c78b63787f189385c2e9b8d47ce4a3ccc7ae18c70c602c4582b15205ca8478ab88cdedcb344dc1ec3f5b0c22c3badc0d

  • C:\Users\Admin\AppData\Local\Temp\DAAC.exe

    MD5

    3ba0b3a3b6d2a66d507acb1f10a24434

    SHA1

    644a4f467c21f8693f7f3c8788360ac3df0fa525

    SHA256

    3d054e3e93c3fccafea80b7e225da90d205282662800aec4624d0641631202b8

    SHA512

    dafa6f2a947598d690441bc418c06bc0c78b63787f189385c2e9b8d47ce4a3ccc7ae18c70c602c4582b15205ca8478ab88cdedcb344dc1ec3f5b0c22c3badc0d

  • C:\Users\Admin\AppData\Local\Temp\DAAC.exe

    MD5

    3ba0b3a3b6d2a66d507acb1f10a24434

    SHA1

    644a4f467c21f8693f7f3c8788360ac3df0fa525

    SHA256

    3d054e3e93c3fccafea80b7e225da90d205282662800aec4624d0641631202b8

    SHA512

    dafa6f2a947598d690441bc418c06bc0c78b63787f189385c2e9b8d47ce4a3ccc7ae18c70c602c4582b15205ca8478ab88cdedcb344dc1ec3f5b0c22c3badc0d

  • memory/1172-144-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

    Filesize

    4KB

  • memory/1172-170-0x0000000005D90000-0x0000000005D91000-memory.dmp

    Filesize

    4KB

  • memory/1172-168-0x00000000050C0000-0x00000000050C1000-memory.dmp

    Filesize

    4KB

  • memory/1172-174-0x0000000006FE0000-0x0000000006FE1000-memory.dmp

    Filesize

    4KB

  • memory/1172-133-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1172-134-0x000000000043713E-mapping.dmp

  • memory/1172-172-0x00000000068E0000-0x00000000068E1000-memory.dmp

    Filesize

    4KB

  • memory/1172-145-0x0000000004DE0000-0x0000000004DE1000-memory.dmp

    Filesize

    4KB

  • memory/1172-139-0x0000000002750000-0x0000000002751000-memory.dmp

    Filesize

    4KB

  • memory/1172-140-0x00000000053C0000-0x00000000053C1000-memory.dmp

    Filesize

    4KB

  • memory/1172-141-0x0000000004D00000-0x0000000004D01000-memory.dmp

    Filesize

    4KB

  • memory/1172-142-0x0000000004EC0000-0x0000000004EC1000-memory.dmp

    Filesize

    4KB

  • memory/1172-143-0x0000000004D60000-0x0000000004D61000-memory.dmp

    Filesize

    4KB

  • memory/1292-128-0x0000000000000000-mapping.dmp

  • memory/1292-131-0x00000000000F0000-0x00000000000F1000-memory.dmp

    Filesize

    4KB

  • memory/1664-115-0x0000000001361000-0x0000000001371000-memory.dmp

    Filesize

    64KB

  • memory/1664-116-0x0000000000030000-0x0000000000039000-memory.dmp

    Filesize

    36KB

  • memory/1812-155-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/1812-166-0x0000000005490000-0x0000000005A96000-memory.dmp

    Filesize

    6.0MB

  • memory/1812-156-0x0000000000418D2A-mapping.dmp

  • memory/2684-120-0x0000000000000000-mapping.dmp

  • memory/2912-125-0x0000000000402E0C-mapping.dmp

  • memory/3008-151-0x00000000048A0000-0x00000000048A1000-memory.dmp

    Filesize

    4KB

  • memory/3008-154-0x0000000004A20000-0x0000000004A21000-memory.dmp

    Filesize

    4KB

  • memory/3008-153-0x0000000004F30000-0x0000000004F31000-memory.dmp

    Filesize

    4KB

  • memory/3008-152-0x0000000004850000-0x0000000004851000-memory.dmp

    Filesize

    4KB

  • memory/3008-149-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/3008-146-0x0000000000000000-mapping.dmp

  • memory/3040-127-0x00000000009D0000-0x00000000009E6000-memory.dmp

    Filesize

    88KB

  • memory/3040-119-0x00000000007A0000-0x00000000007B6000-memory.dmp

    Filesize

    88KB

  • memory/3216-118-0x0000000000402E0C-mapping.dmp

  • memory/3216-117-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB