Analysis

  • max time kernel
    145s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2022 14:41

General

  • Target

    76ecb006aea4715f5123280fb4f966f997166d2457c865e089fe97d5974ee224.exe

  • Size

    125KB

  • MD5

    8459457bab19323cf1a4e8623b24ab33

  • SHA1

    aa2cf6f4acc59587a124929c70276bf51bbd26df

  • SHA256

    76ecb006aea4715f5123280fb4f966f997166d2457c865e089fe97d5974ee224

  • SHA512

    42dfd0a5fbe18b286b68c936b018b6debac799d01bba3d4e15b414e5799509089fa721436e0e780fafa6bae9525379288d964fd3419a417726ca487c583785bb

  • SSDEEP

    3072:sr8JCbFmmoeVa6l2APUR/jNpz3tiZVBhXRRg/p:ktZvoeA+5IjtGBhX7op

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\76ecb006aea4715f5123280fb4f966f997166d2457c865e089fe97d5974ee224.exe
    "C:\Users\Admin\AppData\Local\Temp\76ecb006aea4715f5123280fb4f966f997166d2457c865e089fe97d5974ee224.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4636
    • C:\Users\Admin\AppData\Local\Temp\3582-490\76ecb006aea4715f5123280fb4f966f997166d2457c865e089fe97d5974ee224.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\76ecb006aea4715f5123280fb4f966f997166d2457c865e089fe97d5974ee224.exe"
      2⤵
      • Executes dropped EXE
      PID:3912

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Change Default File Association

1
T1042

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\76ecb006aea4715f5123280fb4f966f997166d2457c865e089fe97d5974ee224.exe
    Filesize

    85KB

    MD5

    a741ca0514d9ea7ac0568889a1b138f4

    SHA1

    aa85744278fb1a159d7dd23b8f83d5c699466d12

    SHA256

    f44a15cdbcb6a02b9eb246913542cec270633c9f06ed4db0f36cb2584222871a

    SHA512

    77ab93a2f585862bb0764a46f93324ae14497e4d5b0f9df44fab6c3ac29bb81cb66b8bf6acef1a14657d5db8342f2a57305019dc1d2978ab1b8934df1fdbcd34

  • C:\Users\Admin\AppData\Local\Temp\3582-490\76ecb006aea4715f5123280fb4f966f997166d2457c865e089fe97d5974ee224.exe
    Filesize

    85KB

    MD5

    a741ca0514d9ea7ac0568889a1b138f4

    SHA1

    aa85744278fb1a159d7dd23b8f83d5c699466d12

    SHA256

    f44a15cdbcb6a02b9eb246913542cec270633c9f06ed4db0f36cb2584222871a

    SHA512

    77ab93a2f585862bb0764a46f93324ae14497e4d5b0f9df44fab6c3ac29bb81cb66b8bf6acef1a14657d5db8342f2a57305019dc1d2978ab1b8934df1fdbcd34

  • memory/3912-132-0x0000000000000000-mapping.dmp