Analysis

  • max time kernel
    128s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    21-04-2021 16:02

General

  • Target

    TBF-21-52100456221SLIP.exe

  • Size

    1.2MB

  • MD5

    d8ecf82a9d13679435f31227b825891b

  • SHA1

    f356d02b5299e9a7d1af75bbf00fdb2be05e6561

  • SHA256

    734485ce04b70e2ee276cbb6cf188d7846daef58315e623d078e6fc5b40397b2

  • SHA512

    fa81c2cbdcfe9d9958bdc8963505b504709f506c14dd2aaa9396c21dcdaae6b1d4c28ef625edff856cb5ea681f4550bcb601a42cbf14daf4c890dbc84193eac9

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.222.57.152:4001

127.0.0.1:4001

Mutex

f9175a76-6792-4aec-8850-9880989a1db8

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-01-31T09:27:36.715855536Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4001

  • default_group

    testing1

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    f9175a76-6792-4aec-8850-9880989a1db8

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    185.222.57.152

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 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.

  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TBF-21-52100456221SLIP.exe
    "C:\Users\Admin\AppData\Local\Temp\TBF-21-52100456221SLIP.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\TBF-21-52100456221SLIP.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1768
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\cNkZWbheq.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1488
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cNkZWbheq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1F63.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:668
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\cNkZWbheq.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:348
    • C:\Users\Admin\AppData\Local\Temp\TBF-21-52100456221SLIP.exe
      "C:\Users\Admin\AppData\Local\Temp\TBF-21-52100456221SLIP.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1612

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_0112b54b-d396-496f-9d8c-c74f6b7a7409
    MD5

    d89968acfbd0cd60b51df04860d99896

    SHA1

    b3c29916ccb81ce98f95bbf3aa8a73de16298b29

    SHA256

    1020cc7c929cd5a4e68ccb40353ca76f427df363f0d95e456eb79db039bdb2b9

    SHA512

    b0e886cce598371b59131fed1535e220c798691bad93ef9474ba440066f5a6bd77a60966604b7a5ff6298b2e200c9dd0c8f9f04aff208b2af423480ead4e8842

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_10a2719f-ab19-452c-9537-375fecbe5f96
    MD5

    df44874327d79bd75e4264cb8dc01811

    SHA1

    1396b06debed65ea93c24998d244edebd3c0209d

    SHA256

    55de642c5c9e436ec01c57004dae797022442c3245daf7162d19a5585f221181

    SHA512

    95dc9298b8db059bbe746f67e6a7f8515781c7053cc60c01532e47623a996be7e1bd23d1bd8f5f2045adff27454f44930d503c15b695690088841cedbd2a06c3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_1abda922-9e0e-4200-89d0-60796083afcc
    MD5

    be4d72095faf84233ac17b94744f7084

    SHA1

    cc78ce5b9c57573bd214a8f423ee622b00ebb1ec

    SHA256

    b0d72c5c22e57913476ac8fc686a4593f137c6667d5094522c0a0685dabd7adc

    SHA512

    43856e9b1032b8690ceea810c931bed3655e9190414bb220fb6afc136f31b8335e07604dffb28405d4006f266a54cff424c527d29924b1b732c9647a3252b097

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_32b21970-4839-4ac5-a2ad-cc925aecc47c
    MD5

    a725bb9fafcf91f3c6b7861a2bde6db2

    SHA1

    8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

    SHA256

    51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

    SHA512

    1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_32b21970-4839-4ac5-a2ad-cc925aecc47c
    MD5

    a725bb9fafcf91f3c6b7861a2bde6db2

    SHA1

    8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

    SHA256

    51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

    SHA512

    1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_50a4ef91-6a4b-4c55-9cd9-581cdd4e77fc
    MD5

    a70ee38af4bb2b5ed3eeb7cbd1a12fa3

    SHA1

    81dbaeae4b0f9e1adc0a1e3d6d76a12396498ba9

    SHA256

    dd2f41f92f19c3fe031bdf5da68ab06768e26762d0077b290cd0094df1d5d58d

    SHA512

    8c69a5300c7545c5c4b25a0594e6813b6b7a85b5f3ae7fc5464b4074fe6f50b2f49d31cacf19bc20a02bb8e237656f1b9b2a3f6a3953e3a8478ca2adc154e0e3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_60554f64-a36e-4439-8748-76f202d7cb75
    MD5

    02ff38ac870de39782aeee04d7b48231

    SHA1

    0390d39fa216c9b0ecdb38238304e518fb2b5095

    SHA256

    fbd66a9baf753db31b8de23f2d51b67f8676687503653103080c45b16f1dc876

    SHA512

    24a1ff76ee42ff7a5ea42843928c4df07b06178f7781cd840e1e086e88735d81506eb67259ff1e6ce5aaa7c5baea03886da265eb7e025ff4dc4c4b5f8cd3e341

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6c904a64-329a-4425-add5-da3f31d26aed
    MD5

    354b8209f647a42e2ce36d8cf326cc92

    SHA1

    98c3117f797df69935f8b09fc9e95accfe3d8346

    SHA256

    feae405d288fdd38438f9d9b54f791f3ce3805f1bb88780da5aca402ad372239

    SHA512

    420be869b58e9a7a2c31f2550ac269df832935692a6431d455a10d9b426781e79d91e30ace2c465633b8a7ff2be1bf49734d8b99a390090dc4b36411d4391ff0

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6ccb18ff-7a22-469e-90e7-ccc861e1432b
    MD5

    b6d38f250ccc9003dd70efd3b778117f

    SHA1

    d5a17c02cac698d4f0a4a9b7d71db2aa19e3f18a

    SHA256

    4de9d7b5ccab7b67ca8efc83084c7ee6e5e872b7216ed4683bc5da950bf41265

    SHA512

    67d8195836b7f280d3f9219fd0f58276342e55d5dfdd8a4c54355030d96685d73f1b2b6da0eb39322ec7c3a1d1c5ef06b52d22646cea30a96f822de1800d31e9

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_7bc5ca8a-50eb-4a28-856a-31595e01418a
    MD5

    597009ea0430a463753e0f5b1d1a249e

    SHA1

    4e38b8bb65ecbd5c9f0d3d8c47f7caba33de6c62

    SHA256

    3fd2a8217a845c43dbc0dc206c28be81d2687aa9ba62019d905aef10cfaec45d

    SHA512

    5d722fa908e64575b2497c60d142e182011a10c6ed33813b3b4796b3147ece1bc96938518b4c8911a1bac3b7560528ebe3e8e754c11015516d335df5d7c6871d

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_bd47eb21-a96b-4ccd-99d7-0d9f3f6c10b6
    MD5

    75a8da7754349b38d64c87c938545b1b

    SHA1

    5c28c257d51f1c1587e29164cc03ea880c21b417

    SHA256

    bf08151c174b5d00c9dbc7907b2c6a01b4be76bfa3afce1e8bd98a04ad833c96

    SHA512

    798797bc74c56c874e9a5fdcb0157c04e37a1b3cce285ef064b01bceef8cec45f11a5198918c6c647220b62883606b5e12e3cca3ea369f3a66e69dea6e15f643

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_c9b427a0-6073-4eb8-9b09-f8e4712d7ab5
    MD5

    5e3c7184a75d42dda1a83606a45001d8

    SHA1

    94ca15637721d88f30eb4b6220b805c5be0360ed

    SHA256

    8278033a65d1ff48be4d86e11f87930d187692f59f8bf2f0a9d170de285afb59

    SHA512

    fae99b6e9b106e0f1c30aa4082b25ae1ad643455c1295c2c16ad534e3e611b9b08492353ffe1af1cfdddc9b2b7c330747a64012c45e62b8f4a4982dcc214e05b

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_f212610c-f039-47f1-95c2-59533edc9c8f
    MD5

    7f79b990cb5ed648f9e583fe35527aa7

    SHA1

    71b177b48c8bd745ef02c2affad79ca222da7c33

    SHA256

    080ec69d3f2abac629a0bdc314f150ad42a9a1b0a031b1d5c7b5b80051c48683

    SHA512

    20926edf7f0b990da4bd8d7ba91bd8bf7b952b75080f687afa7197a91777604688303d38b4a0a7240b558c23f2e0cd927d3590765109f8be0551f5eb050eafda

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
    MD5

    e1d3d87e01c56091f59f709439081c36

    SHA1

    3c249499b5bd113e544a01d2d74185eaf1d41c73

    SHA256

    9bb52611bd5315def0232d80591debe9f8a83bb1af4cff3b5a460168c920b09f

    SHA512

    7d576a8bc4e8f198f6fa4721fa71365a7d2d8b6caf56316bbfb82d89cd93b84b1307bf054325425fd0ff4b851bf1ade89d807c1f56c37132b42831354904051f

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
    MD5

    2f4d77f85925357f2361d6530ee03f85

    SHA1

    d8e7371d5e099c3921887997cfd8933c3cd61bcc

    SHA256

    036f4ce68ec4bdde73e71eb84313087e9300cb10748e6a5028b99b598a47af98

    SHA512

    8f84853b1966bb955f55d2f956329142ae49ad9cdab7100aa1bd8e3622e5f835249a7c9c5a0223f8a5ba1bdfd4beae0272fb5eb3ef6666184b32091031e06124

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
    MD5

    80eccda6e19763632bf67ef74c871110

    SHA1

    ffd8244546d1da4c678f49847acbb7dd95b11932

    SHA256

    3c49b1fee370a296e023ee855489eaa898ba89ff6dc2ac84f7ab6f7a12894115

    SHA512

    25e186752b37e9fd9385f1acdbe6e995b0412d58eeb0f408a8c6b97054803fd11809525081229fbf5ac770c3c9a818fe081e4b53960bfa4337913abeb00ab21e

  • C:\Users\Admin\AppData\Local\Temp\tmp1F63.tmp
    MD5

    803714a502ca861946af6129776ea602

    SHA1

    5c8bfa82c4c7f99033dbcd33b06205e096e81d53

    SHA256

    5b4cb4a214620d59e602ab2e7f6426d9d9103b27e94eded76681dc63eb615a73

    SHA512

    ec891975842f60bb90fd26f2f92264fef241fbd5cd7a87cea21c27874bbb631d5b24b0cbbd19b860b2ceaf7e22acd8363b8857ee3a01f54871b803975f708dd4

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
    MD5

    45504b2eefaaf16f953f0171372bed6d

    SHA1

    d83edd6a48f8157fd49e56755c792dda5354c932

    SHA256

    decffbb3025262e3634b97e11176dc8cf66a0853f00fd4f53299731ddbff16b8

    SHA512

    0430b690d12fd416ea0eb9a96c11b52437bca88a0b728fdb7c08816099369e98e15f7507a2db4f0ea327ce79455c26a1a9418fc392895c23bc7f22d9b75e4080

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
    MD5

    45504b2eefaaf16f953f0171372bed6d

    SHA1

    d83edd6a48f8157fd49e56755c792dda5354c932

    SHA256

    decffbb3025262e3634b97e11176dc8cf66a0853f00fd4f53299731ddbff16b8

    SHA512

    0430b690d12fd416ea0eb9a96c11b52437bca88a0b728fdb7c08816099369e98e15f7507a2db4f0ea327ce79455c26a1a9418fc392895c23bc7f22d9b75e4080

  • memory/348-81-0x0000000000000000-mapping.dmp
  • memory/348-92-0x0000000004B90000-0x0000000004B91000-memory.dmp
    Filesize

    4KB

  • memory/348-93-0x0000000004B92000-0x0000000004B93000-memory.dmp
    Filesize

    4KB

  • memory/348-94-0x0000000002580000-0x0000000002581000-memory.dmp
    Filesize

    4KB

  • memory/668-71-0x0000000000000000-mapping.dmp
  • memory/1304-63-0x0000000000660000-0x0000000000669000-memory.dmp
    Filesize

    36KB

  • memory/1304-64-0x000000007EF40000-0x000000007EF41000-memory.dmp
    Filesize

    4KB

  • memory/1304-66-0x0000000000A90000-0x0000000000AC8000-memory.dmp
    Filesize

    224KB

  • memory/1304-62-0x0000000000AE0000-0x0000000000AE1000-memory.dmp
    Filesize

    4KB

  • memory/1304-60-0x0000000000DC0000-0x0000000000DC1000-memory.dmp
    Filesize

    4KB

  • memory/1304-65-0x0000000005210000-0x000000000528E000-memory.dmp
    Filesize

    504KB

  • memory/1488-80-0x0000000001DF0000-0x0000000002A3A000-memory.dmp
    Filesize

    12.3MB

  • memory/1488-69-0x0000000000000000-mapping.dmp
  • memory/1612-101-0x00000000006B0000-0x00000000006C5000-memory.dmp
    Filesize

    84KB

  • memory/1612-103-0x0000000000730000-0x000000000073C000-memory.dmp
    Filesize

    48KB

  • memory/1612-105-0x0000000000C20000-0x0000000000C26000-memory.dmp
    Filesize

    24KB

  • memory/1612-106-0x0000000000C30000-0x0000000000C3D000-memory.dmp
    Filesize

    52KB

  • memory/1612-107-0x0000000000C50000-0x0000000000C59000-memory.dmp
    Filesize

    36KB

  • memory/1612-108-0x0000000000CE0000-0x0000000000CEF000-memory.dmp
    Filesize

    60KB

  • memory/1612-100-0x0000000000660000-0x000000000066D000-memory.dmp
    Filesize

    52KB

  • memory/1612-110-0x0000000000D10000-0x0000000000D39000-memory.dmp
    Filesize

    164KB

  • memory/1612-111-0x0000000000D80000-0x0000000000D8F000-memory.dmp
    Filesize

    60KB

  • memory/1612-102-0x00000000006E0000-0x00000000006E6000-memory.dmp
    Filesize

    24KB

  • memory/1612-83-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1612-84-0x000000000041E792-mapping.dmp
  • memory/1612-85-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1612-91-0x00000000050F0000-0x00000000050F1000-memory.dmp
    Filesize

    4KB

  • memory/1612-95-0x00000000005F0000-0x00000000005F5000-memory.dmp
    Filesize

    20KB

  • memory/1612-104-0x0000000000C10000-0x0000000000C17000-memory.dmp
    Filesize

    28KB

  • memory/1612-109-0x0000000000CF0000-0x0000000000CFA000-memory.dmp
    Filesize

    40KB

  • memory/1612-99-0x0000000000630000-0x0000000000633000-memory.dmp
    Filesize

    12KB

  • memory/1612-98-0x0000000000600000-0x0000000000619000-memory.dmp
    Filesize

    100KB

  • memory/1768-117-0x0000000005610000-0x0000000005611000-memory.dmp
    Filesize

    4KB

  • memory/1768-124-0x0000000005760000-0x0000000005761000-memory.dmp
    Filesize

    4KB

  • memory/1768-138-0x00000000055D0000-0x00000000055D1000-memory.dmp
    Filesize

    4KB

  • memory/1768-123-0x0000000005670000-0x0000000005671000-memory.dmp
    Filesize

    4KB

  • memory/1768-122-0x000000007EF30000-0x000000007EF31000-memory.dmp
    Filesize

    4KB

  • memory/1768-67-0x0000000000000000-mapping.dmp
  • memory/1768-78-0x0000000004900000-0x0000000004901000-memory.dmp
    Filesize

    4KB

  • memory/1768-74-0x00000000004D0000-0x00000000004D1000-memory.dmp
    Filesize

    4KB

  • memory/1768-75-0x0000000004940000-0x0000000004941000-memory.dmp
    Filesize

    4KB

  • memory/1768-79-0x0000000004902000-0x0000000004903000-memory.dmp
    Filesize

    4KB

  • memory/1768-112-0x0000000002710000-0x0000000002711000-memory.dmp
    Filesize

    4KB

  • memory/1768-68-0x0000000075AD1000-0x0000000075AD3000-memory.dmp
    Filesize

    8KB

  • memory/1768-131-0x00000000058F0000-0x00000000058F1000-memory.dmp
    Filesize

    4KB