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Resubmissions

02/09/2023, 14:51

230902-r8cxhaea23 10

02/09/2023, 14:49

230902-r65vhadf3s 10

Analysis

  • max time kernel
    118s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    02/09/2023, 14:49

General

  • Target

    Grammarly Promotional Launcher.exe

  • Size

    20.4MB

  • MD5

    9ed667ef1d116c0cb1051b8001b6ea0f

  • SHA1

    cbe4fdb8847ff9b5d0aa1e0a43bb3abd28f4a875

  • SHA256

    deba2be10d757679996d33d70d37b968088ba37e1d0f86d71beb8be38c34262f

  • SHA512

    4fc726f8f2ca7f024f5db1a660a3c9dff109014cc2f56097470b317950d05956c084f2e19fb9da3d14d589444c2bb0a7a370bce8b5dc049b5d3e774994bdd4e1

  • SSDEEP

    393216:onRZwqeWLCKhc+0Uz+JD8rY5Pobe7n/k8MoeTtqLiVc4GYbJQp:CN1hxX+QrY5PAe7/kHtsii4bbJG

Score
6/10

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Grammarly Promotional Launcher.exe
    "C:\Users\Admin\AppData\Local\Temp\Grammarly Promotional Launcher.exe"
    1⤵
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2244

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabB31B.tmp

    Filesize

    61KB

    MD5

    f3441b8572aae8801c04f3060b550443

    SHA1

    4ef0a35436125d6821831ef36c28ffaf196cda15

    SHA256

    6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

    SHA512

    5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

  • C:\Users\Admin\AppData\Local\Temp\TarB39B.tmp

    Filesize

    163KB

    MD5

    9441737383d21192400eca82fda910ec

    SHA1

    725e0d606a4fc9ba44aa8ffde65bed15e65367e4

    SHA256

    bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

    SHA512

    7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

  • memory/2244-0-0x0000000077DC0000-0x0000000077DC2000-memory.dmp

    Filesize

    8KB

  • memory/2244-3-0x0000000140000000-0x0000000141469000-memory.dmp

    Filesize

    20.4MB

  • memory/2244-2-0x0000000077DC0000-0x0000000077DC2000-memory.dmp

    Filesize

    8KB

  • memory/2244-6-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-5-0x0000000077DC0000-0x0000000077DC2000-memory.dmp

    Filesize

    8KB

  • memory/2244-7-0x0000000077DD0000-0x0000000077DD2000-memory.dmp

    Filesize

    8KB

  • memory/2244-9-0x0000000077DD0000-0x0000000077DD2000-memory.dmp

    Filesize

    8KB

  • memory/2244-12-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-11-0x0000000077DD0000-0x0000000077DD2000-memory.dmp

    Filesize

    8KB

  • memory/2244-13-0x0000000077DF0000-0x0000000077DF2000-memory.dmp

    Filesize

    8KB

  • memory/2244-15-0x0000000077DF0000-0x0000000077DF2000-memory.dmp

    Filesize

    8KB

  • memory/2244-17-0x0000000077DF0000-0x0000000077DF2000-memory.dmp

    Filesize

    8KB

  • memory/2244-18-0x0000000077E00000-0x0000000077E02000-memory.dmp

    Filesize

    8KB

  • memory/2244-20-0x0000000077E00000-0x0000000077E02000-memory.dmp

    Filesize

    8KB

  • memory/2244-23-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-22-0x0000000077E00000-0x0000000077E02000-memory.dmp

    Filesize

    8KB

  • memory/2244-24-0x0000000077E10000-0x0000000077E12000-memory.dmp

    Filesize

    8KB

  • memory/2244-26-0x0000000077E10000-0x0000000077E12000-memory.dmp

    Filesize

    8KB

  • memory/2244-29-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-28-0x0000000077E10000-0x0000000077E12000-memory.dmp

    Filesize

    8KB

  • memory/2244-30-0x0000000077E20000-0x0000000077E22000-memory.dmp

    Filesize

    8KB

  • memory/2244-32-0x0000000077E20000-0x0000000077E22000-memory.dmp

    Filesize

    8KB

  • memory/2244-35-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-34-0x0000000077E20000-0x0000000077E22000-memory.dmp

    Filesize

    8KB

  • memory/2244-36-0x0000000077E30000-0x0000000077E32000-memory.dmp

    Filesize

    8KB

  • memory/2244-38-0x0000000077E30000-0x0000000077E32000-memory.dmp

    Filesize

    8KB

  • memory/2244-41-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-40-0x0000000077E30000-0x0000000077E32000-memory.dmp

    Filesize

    8KB

  • memory/2244-42-0x0000000077E40000-0x0000000077E42000-memory.dmp

    Filesize

    8KB

  • memory/2244-44-0x0000000077E40000-0x0000000077E42000-memory.dmp

    Filesize

    8KB

  • memory/2244-46-0x0000000077E40000-0x0000000077E42000-memory.dmp

    Filesize

    8KB

  • memory/2244-50-0x0000000077E50000-0x0000000077E52000-memory.dmp

    Filesize

    8KB

  • memory/2244-49-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-47-0x0000000077E50000-0x0000000077E52000-memory.dmp

    Filesize

    8KB

  • memory/2244-52-0x0000000077E50000-0x0000000077E52000-memory.dmp

    Filesize

    8KB

  • memory/2244-53-0x0000000077E60000-0x0000000077E62000-memory.dmp

    Filesize

    8KB

  • memory/2244-55-0x0000000077E60000-0x0000000077E62000-memory.dmp

    Filesize

    8KB

  • memory/2244-57-0x0000000140000000-0x0000000141469000-memory.dmp

    Filesize

    20.4MB

  • memory/2244-61-0x0000000077E70000-0x0000000077E72000-memory.dmp

    Filesize

    8KB

  • memory/2244-60-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-59-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-58-0x0000000077E60000-0x0000000077E62000-memory.dmp

    Filesize

    8KB

  • memory/2244-63-0x0000000077E70000-0x0000000077E72000-memory.dmp

    Filesize

    8KB

  • memory/2244-67-0x0000000077E80000-0x0000000077E82000-memory.dmp

    Filesize

    8KB

  • memory/2244-66-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-65-0x0000000077E70000-0x0000000077E72000-memory.dmp

    Filesize

    8KB

  • memory/2244-69-0x0000000077E80000-0x0000000077E82000-memory.dmp

    Filesize

    8KB

  • memory/2244-72-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-71-0x0000000077E80000-0x0000000077E82000-memory.dmp

    Filesize

    8KB

  • memory/2244-73-0x0000000077E90000-0x0000000077E92000-memory.dmp

    Filesize

    8KB

  • memory/2244-75-0x0000000077E90000-0x0000000077E92000-memory.dmp

    Filesize

    8KB

  • memory/2244-78-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-85-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-91-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-96-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-103-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-104-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-132-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-214-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-215-0x0000000140000000-0x0000000141469000-memory.dmp

    Filesize

    20.4MB

  • memory/2244-216-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2244-217-0x0000000077C10000-0x0000000077DB9000-memory.dmp

    Filesize

    1.7MB