Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220718-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220718-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-07-2022 19:14

General

  • Target

    d54251187d34bf23efbd1aeb8863fa80.exe

  • Size

    88KB

  • MD5

    d54251187d34bf23efbd1aeb8863fa80

  • SHA1

    6d89ec633bf1fc506ba796846f1e108543b85756

  • SHA256

    e103c29f6e8365d4ca9f843839556faadbb907060dbd711fa3119fe12944a635

  • SHA512

    f3aa291302719ee8306cdaec43162e36c29a56a32ed3f78c081573a0a70dc22ad1ccdd8cdc74d9dfcd56f7fc41c0d149653b568bb771e65fa1a22e9c06979236

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

widda1.ddns.net:8848

widda1.ddns.net:8828

widda1.ddns.net:22

windda.ddns.net:8848

windda.ddns.net:8828

windda.ddns.net:22

runam.ddns.net:8848

runam.ddns.net:8828

runam.ddns.net:22

winam.ddns.net:8848

winam.ddns.net:8828

winam.ddns.net:22

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    true

  • install_file

    svchost.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

  • Detect Neshta payload 20 IoCs
  • 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.

  • Async RAT payload 5 IoCs
  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 2 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 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d54251187d34bf23efbd1aeb8863fa80.exe
    "C:\Users\Admin\AppData\Local\Temp\d54251187d34bf23efbd1aeb8863fa80.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:2832
    • C:\Users\Admin\AppData\Local\Temp\3582-490\d54251187d34bf23efbd1aeb8863fa80.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\d54251187d34bf23efbd1aeb8863fa80.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4864
      • C:\Windows\svchost.com
        "C:\Windows\svchost.com" "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:5028
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\System32\cmd.exe /c schtasks /create /f /sc onlogon /rl highest /tn svchost /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1464
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /f /sc onlogon /rl highest /tn svchost /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
            5⤵
            • Creates scheduled task(s)
            PID:4688
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC856.tmp.bat""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1132
        • C:\Windows\system32\timeout.exe
          timeout 3
          4⤵
          • Delays execution with timeout.exe
          PID:4464
        • C:\Users\Admin\AppData\Roaming\svchost.exe
          "C:\Users\Admin\AppData\Roaming\svchost.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:4164

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Change Default File Association

1
T1042

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

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:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe
    Filesize

    982KB

    MD5

    4e8c731e3175d6d2f5085fe55974e1db

    SHA1

    74604823bd1e5af86d66e4986c1203f2bf26e657

    SHA256

    8a8d0905d868bc8b3bbd3545de42b459b3b517bb874365f911ff05ae71f90325

    SHA512

    a058948f7a82ca4c14ea41527c66918e7737776f7af65b00888f3c39de416397821861ba4e77cdb8a738bc0136462d1256bc6447f0d105d929831a2b47c87485

  • C:\PROGRA~2\Google\Update\1336~1.71\GOBD5D~1.EXE
    Filesize

    217KB

    MD5

    ad0efa1df844814c2e8ddc188cb0e3b5

    SHA1

    b1a8a09f2223aab8b8e3e9bc0e58cc83d402f8ab

    SHA256

    c87fd5b223cb6dc716815b442b4964d4670a30b5c79f4fb9f1c3a65ec9072e5a

    SHA512

    532cc173d9ef27098ff10b6b652c64231b4a14f99df3b5de2eb1423370c19590e2a6032023d3ed02e2080f2f087b620ebbbd079e4a47a584ef11f3eaa0eb8520

  • C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~1.EXE
    Filesize

    191KB

    MD5

    dd5586c90fad3d0acb402c1aab8f6642

    SHA1

    3440cd9e78d4e4b3c2f5ba31435cedaa559e5c7f

    SHA256

    fba2b9270ade0ce80e8dfc5e3279db683324502f6103e451cd090c69da56415e

    SHA512

    e56f6d6b446411ba4ed24f0d113953d9c9e874b2ac4511d33e5c5b85dddd81216579695e35c34b6054c187b00ee214d5648594dad498297f487f2fd47f040a4d

  • C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~4.EXE
    Filesize

    445KB

    MD5

    018f65edabf8cad566cacd35da90eed7

    SHA1

    dda69ad75ec00e3fefffc39542a9b7f0fd21e942

    SHA256

    746119286fec5a58b16c606ec17652b3ccac611a898321c379be48e6d3be0252

    SHA512

    33a13b220a102826ed3e80af54965b2bf0cbe2e74c361520129363f354e0cfca905d4a56c33421b2cd9ecb0e4b21e399278c1abcaf3916c2b499c254ae8c18af

  • C:\PROGRA~2\Google\Update\DISABL~1.EXE
    Filesize

    191KB

    MD5

    dd5586c90fad3d0acb402c1aab8f6642

    SHA1

    3440cd9e78d4e4b3c2f5ba31435cedaa559e5c7f

    SHA256

    fba2b9270ade0ce80e8dfc5e3279db683324502f6103e451cd090c69da56415e

    SHA512

    e56f6d6b446411ba4ed24f0d113953d9c9e874b2ac4511d33e5c5b85dddd81216579695e35c34b6054c187b00ee214d5648594dad498297f487f2fd47f040a4d

  • C:\PROGRA~2\MICROS~1\EDGEUP~1\13163~1.19\MICROS~1.EXE
    Filesize

    241KB

    MD5

    b649cd807435fce8258350d24bd71d5a

    SHA1

    a2e9066a052ec376c173181a020ecaa96972d97a

    SHA256

    5ae70469e34f07f26371ceabbb919694de08f719b11333baa0af59744dbffcfe

    SHA512

    6d274893f03f7cc1bcb06f1a5eed274ad73c6373019c1ce5546901cb997ec5db4df70693551ce90bf3d2d871d0fd9f8fc63da85801ec379e477e5da1b96e2802

  • C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\BHO\IE_TO_~1.EXE
    Filesize

    509KB

    MD5

    7c73e01bd682dc67ef2fbb679be99866

    SHA1

    ad3834bd9f95f8bf64eb5be0a610427940407117

    SHA256

    da333c92fdfd2e8092f5b56686b94f713f8fa27ef8f333e7222259ad1eb08f5d

    SHA512

    b2f3398e486cde482cb6bea18f4e5312fa2db7382ca25cea17bcba5ab1ff0e891d59328bc567641a9da05caca4d7c61dc102289d46e7135f947ce6155e295711

  • C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\NOTIFI~1.EXE
    Filesize

    1.3MB

    MD5

    27543bab17420af611ccc3029db9465a

    SHA1

    f0f96fd53f9695737a3fa6145bc5a6ce58227966

    SHA256

    75530dc732f35cc796d19edd11ae6d6f6ef6499ddcf2e57307582b1c5299554c

    SHA512

    a62c2dd60e1df309ec1bb48ea85184914962ba83766f29d878569549ca20fca68f304f4494702d9e5f09adedc2166e48ee0bc1f4a5d9e245c5490daf15036bea

  • C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE
    Filesize

    1.1MB

    MD5

    5c78384d8eb1f6cb8cb23d515cfe7c98

    SHA1

    b732ab6c3fbf2ded8a4d6c8962554d119f59082e

    SHA256

    9abd7f0aa942ee6b263cdc4b32a4110ddb95e43ad411190f0ea48c0064884564

    SHA512

    99324af5f8fb70a9d01f97d845a4c6999053d6567ba5b80830a843a1634b02eaf3c0c04ced924cf1b1be9b4d1dbbcb95538385f7f85ad84d3eaaa6dcdebcc8a6

  • C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE
    Filesize

    485KB

    MD5

    87f15006aea3b4433e226882a56f188d

    SHA1

    e3ad6beb8229af62b0824151dbf546c0506d4f65

    SHA256

    8d0045c74270281c705009d49441167c8a51ac70b720f84ff941b39fad220919

    SHA512

    b01a8af6dc836044d2adc6828654fa7a187c3f7ffe2a4db4c73021be6d121f9c1c47b1643513c3f25c0e1b5123b8ce2dc78b2ca8ce638a09c2171f158762c7c1

  • C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE
    Filesize

    495KB

    MD5

    07e194ce831b1846111eb6c8b176c86e

    SHA1

    b9c83ec3b0949cb661878fb1a8b43a073e15baf1

    SHA256

    d882f673ddf40a7ea6d89ce25e4ee55d94a5ef0b5403aa8d86656fd960d0e4ac

    SHA512

    55f9b6d3199aa60d836b6792ae55731236fb2a99c79ce8522e07e579c64eabb88fa413c02632deb87a361dd8490361aa1424beed2e01ba28be220f8c676a1bb5

  • C:\Users\ALLUSE~1\Adobe\Setup\{AC76B~1\setup.exe
    Filesize

    494KB

    MD5

    05bdfd8a3128ab14d96818f43ebe9c0e

    SHA1

    495cbbd020391e05d11c52aa23bdae7b89532eb7

    SHA256

    7b945c7e6b8bfbb489f003ecd1d0dcd4803042003de4646d4206114361a0fbbb

    SHA512

    8d9b9fc407986bd53fe3b56c96b7371cc782b4bac705253bfb0a2b0b1e6883fdb022f1ac87b8bfd7005291991b6a3dfbaceab54f5d494e0af70f0435a0b8b0da

  • C:\Users\ALLUSE~1\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE
    Filesize

    6.7MB

    MD5

    63dc05e27a0b43bf25f151751b481b8c

    SHA1

    b20321483dac62bce0aa0cef1d193d247747e189

    SHA256

    7d607fb69c69a72a5bf4305599279f46318312ce1082b6a34ac9100b8c7762ce

    SHA512

    374d705704d456cc5f9f79b7f465f6ec7c775dc43001c840e9d6efbbdef20926ed1fa97f8a9b1e73161e17f72520b96c05fa58ac86b3945208b405f9166e7ba3

  • C:\Users\ALLUSE~1\PACKAG~1\{33D1F~1\VCREDI~1.EXE
    Filesize

    526KB

    MD5

    cc5020b193486a88f373bedca78e24c8

    SHA1

    61744a1675ce10ddd196129b49331d517d7da884

    SHA256

    e87936bb1f0794b7622f8ce5b88e4b57b2358c4e0d0fd87c5cd9fa03b8429e2a

    SHA512

    bc2c77a25ad9f25ac19d8216dafc5417513cb57b9984237a5589a0bb684fdac4540695fcfb0df150556823b191014c96b002e4234a779bd064d36166afeb09d2

  • C:\Users\ALLUSE~1\PACKAG~1\{4D8DC~1\VC_RED~1.EXE
    Filesize

    674KB

    MD5

    97510a7d9bf0811a6ea89fad85a9f3f3

    SHA1

    2ac0c49b66a92789be65580a38ae9798237711db

    SHA256

    c48abbc29405559e68cc9f8fc6d218aa317a9d0023839c7846ca509c1f563fea

    SHA512

    2a93e2a3bd187fdde160f87ef777ccd1d1c398d547b7c869e6b64469b9418ad04d887cdfe94af7407476377bf2d009f576de3935c025b7aefbab26fbcd8f90fb

  • C:\Users\ALLUSE~1\PACKAG~1\{57A73~1\VC_RED~1.EXE
    Filesize

    674KB

    MD5

    9c10a5ec52c145d340df7eafdb69c478

    SHA1

    57f3d99e41d123ad5f185fc21454367a7285db42

    SHA256

    ccf37e88447a7afdb0ba4351b8c5606dbb05b984fb133194d71bcc00d7be4e36

    SHA512

    2704cfd1a708bfca6db7c52467d3abf0b09313db0cdd1ea8e5d48504c8240c4bf24e677f17c5df9e3ac1f6a678e0328e73e951dc4481f35027cb03b2966dc38f

  • C:\Users\ALLUSE~1\PACKAG~1\{61087~1\VCREDI~1.EXE
    Filesize

    495KB

    MD5

    9597098cfbc45fae685d9480d135ed13

    SHA1

    84401f03a7942a7e4fcd26e4414b227edd9b0f09

    SHA256

    45966655baaed42df92cd6d8094b4172c0e7a0320528b59cf63fca7c25d66e9c

    SHA512

    16afbdffe4b4b2e54b4cc96fe74e49ca367dea50752321ddf334756519812ba8ce147ef5459e421dc42e103bc3456aab1d185588cc86b35fa2315ac86b2a0164

  • C:\Users\Admin\AppData\Local\Temp\3582-490\d54251187d34bf23efbd1aeb8863fa80.exe
    Filesize

    48KB

    MD5

    672d0fd139c2c831c9eded0bac25b473

    SHA1

    6ec05167aaaa3e6b57f1449e15a16efe10b54c51

    SHA256

    3ab78a05e9f01de728600883b9bb1bc193081c9b4da43bafe16e6c865903b5c3

    SHA512

    66438f5b4690cca1db7b7412ac1a5416b61a8097e89a3a04bc03f5f7a3c7d938364ed2c787c93c64775641096aa311ce56c2224f2db988abce2a1f05e53514be

  • C:\Users\Admin\AppData\Local\Temp\3582-490\d54251187d34bf23efbd1aeb8863fa80.exe
    Filesize

    48KB

    MD5

    672d0fd139c2c831c9eded0bac25b473

    SHA1

    6ec05167aaaa3e6b57f1449e15a16efe10b54c51

    SHA256

    3ab78a05e9f01de728600883b9bb1bc193081c9b4da43bafe16e6c865903b5c3

    SHA512

    66438f5b4690cca1db7b7412ac1a5416b61a8097e89a3a04bc03f5f7a3c7d938364ed2c787c93c64775641096aa311ce56c2224f2db988abce2a1f05e53514be

  • C:\Users\Admin\AppData\Local\Temp\tmpC856.tmp.bat
    Filesize

    151B

    MD5

    1da2cb1f8c1e93f18c60597e123b2ba7

    SHA1

    354c7421e32ce105af93ef7a2e73d72e28e52401

    SHA256

    68a006006c17a49839744a775bc3144de211498949a213309d901b0fd993b6ed

    SHA512

    f92344835d45ad05ca6e1d5a03bb342f10536b6f8fc796a89c536da121b5d98d3957a17a3aad51edcd77ef456ba954701d6590900a83ac7057d3f76334c9d05f

  • C:\Users\Admin\AppData\Roaming\svchost.exe
    Filesize

    48KB

    MD5

    672d0fd139c2c831c9eded0bac25b473

    SHA1

    6ec05167aaaa3e6b57f1449e15a16efe10b54c51

    SHA256

    3ab78a05e9f01de728600883b9bb1bc193081c9b4da43bafe16e6c865903b5c3

    SHA512

    66438f5b4690cca1db7b7412ac1a5416b61a8097e89a3a04bc03f5f7a3c7d938364ed2c787c93c64775641096aa311ce56c2224f2db988abce2a1f05e53514be

  • C:\Users\Admin\AppData\Roaming\svchost.exe
    Filesize

    48KB

    MD5

    672d0fd139c2c831c9eded0bac25b473

    SHA1

    6ec05167aaaa3e6b57f1449e15a16efe10b54c51

    SHA256

    3ab78a05e9f01de728600883b9bb1bc193081c9b4da43bafe16e6c865903b5c3

    SHA512

    66438f5b4690cca1db7b7412ac1a5416b61a8097e89a3a04bc03f5f7a3c7d938364ed2c787c93c64775641096aa311ce56c2224f2db988abce2a1f05e53514be

  • C:\Windows\svchost.com
    Filesize

    40KB

    MD5

    36fd5e09c417c767a952b4609d73a54b

    SHA1

    299399c5a2403080a5bf67fb46faec210025b36d

    SHA256

    980bac6c9afe8efc9c6fe459a5f77213b0d8524eb00de82437288eb96138b9a2

    SHA512

    1813a6a5b47a9b2cd3958cf4556714ae240f2aa19d0a241b596830f0f2b89a33ec864d00ce6a791d323a58dfbff42a0fded65eefbf980c92685e25c0ec415d92

  • C:\Windows\svchost.com
    Filesize

    40KB

    MD5

    36fd5e09c417c767a952b4609d73a54b

    SHA1

    299399c5a2403080a5bf67fb46faec210025b36d

    SHA256

    980bac6c9afe8efc9c6fe459a5f77213b0d8524eb00de82437288eb96138b9a2

    SHA512

    1813a6a5b47a9b2cd3958cf4556714ae240f2aa19d0a241b596830f0f2b89a33ec864d00ce6a791d323a58dfbff42a0fded65eefbf980c92685e25c0ec415d92

  • C:\odt\OFFICE~1.EXE
    Filesize

    5.1MB

    MD5

    02c3d242fe142b0eabec69211b34bc55

    SHA1

    ea0a4a6d6078b362f7b3a4ad1505ce49957dc16e

    SHA256

    2a1ed24be7e3859b46ec3ebc316789ead5f12055853f86a9656e04b4bb771842

    SHA512

    0efb08492eaaa2e923beddc21566e98fbbef3a102f9415ff310ec616f5c84fd2ba3a7025b05e01c0bdf37e5e2f64dfd845f9254a376144cc7d827e7577dbb099

  • memory/1132-139-0x0000000000000000-mapping.dmp
  • memory/1464-140-0x0000000000000000-mapping.dmp
  • memory/4164-167-0x00007FF816300000-0x00007FF816DC1000-memory.dmp
    Filesize

    10.8MB

  • memory/4164-146-0x0000000000000000-mapping.dmp
  • memory/4164-149-0x00007FF816300000-0x00007FF816DC1000-memory.dmp
    Filesize

    10.8MB

  • memory/4464-144-0x0000000000000000-mapping.dmp
  • memory/4688-145-0x0000000000000000-mapping.dmp
  • memory/4864-142-0x00007FF816300000-0x00007FF816DC1000-memory.dmp
    Filesize

    10.8MB

  • memory/4864-135-0x00007FF816300000-0x00007FF816DC1000-memory.dmp
    Filesize

    10.8MB

  • memory/4864-134-0x00007FF816300000-0x00007FF816DC1000-memory.dmp
    Filesize

    10.8MB

  • memory/4864-133-0x0000000000490000-0x00000000004A2000-memory.dmp
    Filesize

    72KB

  • memory/4864-130-0x0000000000000000-mapping.dmp
  • memory/5028-136-0x0000000000000000-mapping.dmp