Analysis

  • max time kernel
    115s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-03-2023 12:41

General

  • Target

    file.exe

  • Size

    206KB

  • MD5

    307ce80121e9db63857ffbcc6e6f413e

  • SHA1

    9721de97ac9d1ff4b6224fff96700acdc2a51984

  • SHA256

    70b1cf50a59c123dacf50e8f9356e0b65c850e05aa2511bb8d5556b87ce12f8e

  • SHA512

    fc3ec1a3c8acf148051d74bec02caf5ffdd7428d271ce7f56eed8a2b78ef7014c69300d1c704861370b255e361b35daade8fb3da0dcd914d462311e5ce171961

  • SSDEEP

    6144:PYa6O699YTGIehAlmP4+LOmt4qTGu9E2kw3mP:PYA6OpeK+LO2TT/91k/P

Malware Config

Signatures

  • RedLine

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

  • RedLine payload 6 IoCs
  • SectopRAT

    SectopRAT is a remote access trojan first seen in November 2019.

  • SectopRAT payload 6 IoCs
  • Executes dropped EXE 2 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3532
    • C:\Users\Admin\AppData\Local\Temp\rrgfoacgb.exe
      "C:\Users\Admin\AppData\Local\Temp\rrgfoacgb.exe" C:\Users\Admin\AppData\Local\Temp\sfrwbk.h
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1564
      • C:\Users\Admin\AppData\Local\Temp\rrgfoacgb.exe
        "C:\Users\Admin\AppData\Local\Temp\rrgfoacgb.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2244

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\rrgfoacgb.exe
    Filesize

    6KB

    MD5

    cbf7a3da7ae08e09c502c0c3d8f53341

    SHA1

    42b21a5e6b898adf8d3f7e6a86ef708528625d72

    SHA256

    8ec95a918373228d8ed14db19a1e4c546ebdb03245340036dd2b06214ee3185f

    SHA512

    4468dc1f1b67da1736cf6e9236c628f44ff7af025cb0364c734c55c6689ec2395c6c60efc89e67bd62e759e6f258515a5ce12703844779b2941fa22d98aff665

  • C:\Users\Admin\AppData\Local\Temp\rrgfoacgb.exe
    Filesize

    6KB

    MD5

    cbf7a3da7ae08e09c502c0c3d8f53341

    SHA1

    42b21a5e6b898adf8d3f7e6a86ef708528625d72

    SHA256

    8ec95a918373228d8ed14db19a1e4c546ebdb03245340036dd2b06214ee3185f

    SHA512

    4468dc1f1b67da1736cf6e9236c628f44ff7af025cb0364c734c55c6689ec2395c6c60efc89e67bd62e759e6f258515a5ce12703844779b2941fa22d98aff665

  • C:\Users\Admin\AppData\Local\Temp\rrgfoacgb.exe
    Filesize

    6KB

    MD5

    cbf7a3da7ae08e09c502c0c3d8f53341

    SHA1

    42b21a5e6b898adf8d3f7e6a86ef708528625d72

    SHA256

    8ec95a918373228d8ed14db19a1e4c546ebdb03245340036dd2b06214ee3185f

    SHA512

    4468dc1f1b67da1736cf6e9236c628f44ff7af025cb0364c734c55c6689ec2395c6c60efc89e67bd62e759e6f258515a5ce12703844779b2941fa22d98aff665

  • C:\Users\Admin\AppData\Local\Temp\sfrwbk.h
    Filesize

    5KB

    MD5

    539dc88b476d838ab32cffbbd7f33119

    SHA1

    7984f24b9f4c24227bd21d5f0f6229892baf5276

    SHA256

    7df8cd18e6c94fb288b7286bd857a72b1b871e6e37a3be89184bcc9ab5bc2f92

    SHA512

    14099ad263918e9c1af855668e1f5297c103959a90d6456206b0732c5d5800fd82f79a7cc634abaa6799754a2f759f030d254097fe68c72cdcb4a7919824ced0

  • C:\Users\Admin\AppData\Local\Temp\tmp9E6F.tmp
    Filesize

    46KB

    MD5

    02d2c46697e3714e49f46b680b9a6b83

    SHA1

    84f98b56d49f01e9b6b76a4e21accf64fd319140

    SHA256

    522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9

    SHA512

    60348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac

  • C:\Users\Admin\AppData\Local\Temp\tmp9E95.tmp
    Filesize

    92KB

    MD5

    4b609cebb20f08b79628408f4fa2ad42

    SHA1

    f725278c8bc0527c316e01827f195de5c9a8f934

    SHA256

    2802818c570f9da1ce2e2fe2ff12cd3190b4c287866a3e4dfe2ad3a7df4cecdf

    SHA512

    19111811722223521c8ef801290e2d5d8a49c0800363b9cf4232ca037dbcc515aa16ba6c043193f81388260db0e9a7cdb31b0da8c7ffa5bcad67ddbd842e2c60

  • C:\Users\Admin\AppData\Local\Temp\tmp9ED0.tmp
    Filesize

    48KB

    MD5

    349e6eb110e34a08924d92f6b334801d

    SHA1

    bdfb289daff51890cc71697b6322aa4b35ec9169

    SHA256

    c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

    SHA512

    2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

  • C:\Users\Admin\AppData\Local\Temp\tmp9EF5.tmp
    Filesize

    112KB

    MD5

    780853cddeaee8de70f28a4b255a600b

    SHA1

    ad7a5da33f7ad12946153c497e990720b09005ed

    SHA256

    1055ff62de3dea7645c732583242adf4164bdcfb9dd37d9b35bbb9510d59b0a3

    SHA512

    e422863112084bb8d11c682482e780cd63c2f20c8e3a93ed3b9efd1b04d53eb5d3c8081851ca89b74d66f3d9ab48eb5f6c74550484f46e7c6e460a8250c9b1d8

  • C:\Users\Admin\AppData\Local\Temp\tmp9F20.tmp
    Filesize

    96KB

    MD5

    d367ddfda80fdcf578726bc3b0bc3e3c

    SHA1

    23fcd5e4e0e5e296bee7e5224a8404ecd92cf671

    SHA256

    0b8607fdf72f3e651a2a8b0ac7be171b4cb44909d76bb8d6c47393b8ea3d84a0

    SHA512

    40e9239e3f084b4b981431817ca282feb986cf49227911bf3d68845baf2ee626b564c8fabe6e13b97e6eb214da1c02ca09a62bcf5e837900160cf479c104bf77

  • C:\Users\Admin\AppData\Local\Temp\ujpwrdckn.mu
    Filesize

    193KB

    MD5

    af97c7480ebf09c4f55bdfd2d151be6e

    SHA1

    24acb91a4245db415b380d68a2718c74496673cb

    SHA256

    b1f419510b5afd191caff80bcfd3d7df728e9ada37f173b10dcc0edfa61f5b9d

    SHA512

    673f308a3876aad3839046a37242bef07d9717ec941bbacf27c3b0000868a7ec88eb8964982d1dd79557ecb30d5a361558691ab25729660b8ceac77a0027ff8e

  • memory/2244-155-0x0000000005530000-0x0000000005540000-memory.dmp
    Filesize

    64KB

  • memory/2244-160-0x0000000006F30000-0x0000000006FA6000-memory.dmp
    Filesize

    472KB

  • memory/2244-150-0x0000000005530000-0x0000000005540000-memory.dmp
    Filesize

    64KB

  • memory/2244-152-0x0000000005530000-0x0000000005540000-memory.dmp
    Filesize

    64KB

  • memory/2244-153-0x0000000005580000-0x00000000055BC000-memory.dmp
    Filesize

    240KB

  • memory/2244-154-0x0000000005800000-0x000000000590A000-memory.dmp
    Filesize

    1.0MB

  • memory/2244-149-0x0000000000400000-0x000000000042F000-memory.dmp
    Filesize

    188KB

  • memory/2244-156-0x0000000006AE0000-0x0000000006CA2000-memory.dmp
    Filesize

    1.8MB

  • memory/2244-157-0x00000000071E0000-0x000000000770C000-memory.dmp
    Filesize

    5.2MB

  • memory/2244-158-0x0000000006A70000-0x0000000006AD6000-memory.dmp
    Filesize

    408KB

  • memory/2244-159-0x0000000006E90000-0x0000000006F22000-memory.dmp
    Filesize

    584KB

  • memory/2244-151-0x0000000005530000-0x0000000005540000-memory.dmp
    Filesize

    64KB

  • memory/2244-161-0x0000000007CC0000-0x0000000008264000-memory.dmp
    Filesize

    5.6MB

  • memory/2244-162-0x00000000070B0000-0x00000000070CE000-memory.dmp
    Filesize

    120KB

  • memory/2244-163-0x0000000005530000-0x0000000005540000-memory.dmp
    Filesize

    64KB

  • memory/2244-164-0x0000000005530000-0x0000000005540000-memory.dmp
    Filesize

    64KB

  • memory/2244-165-0x0000000005530000-0x0000000005540000-memory.dmp
    Filesize

    64KB

  • memory/2244-148-0x00000000054F0000-0x0000000005502000-memory.dmp
    Filesize

    72KB

  • memory/2244-147-0x0000000005B60000-0x0000000006178000-memory.dmp
    Filesize

    6.1MB

  • memory/2244-145-0x0000000000400000-0x000000000042F000-memory.dmp
    Filesize

    188KB

  • memory/2244-144-0x0000000000400000-0x000000000042F000-memory.dmp
    Filesize

    188KB

  • memory/2244-142-0x0000000000400000-0x000000000042F000-memory.dmp
    Filesize

    188KB

  • memory/2244-320-0x0000000005530000-0x0000000005540000-memory.dmp
    Filesize

    64KB

  • memory/2244-322-0x0000000000400000-0x000000000042F000-memory.dmp
    Filesize

    188KB