MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 34bb8ab4f4af2b2834e83d1cbab2bc16baa1a0c536d0721531b4072fb40629df. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



NanoCore


Vendor detections: 13


Intelligence 13 IOCs 1 YARA 2 File information Comments

SHA256 hash: 34bb8ab4f4af2b2834e83d1cbab2bc16baa1a0c536d0721531b4072fb40629df
SHA3-384 hash: f125a428deb5fb5e35b308650a8fdeb374329dc06586baab1cd847ff147b160421310aaaee427d91a3166c5c466d42f9
SHA1 hash: 29a4b433843c85da132da6ca5253bbe80b9e5320
MD5 hash: 7d18221fcd5ca3f58f37dfb05351ba32
humanhash: utah-hotel-zulu-utah
File name:7d18221fcd5ca3f58f37dfb05351ba32.exe
Download: download sample
Signature NanoCore
File size:1'027'072 bytes
First seen:2022-03-28 02:25:45 UTC
Last seen:2022-03-28 02:44:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:HxLjtXm3fo6WRm50l97RHGY7HEGpqP7BZ0lb:VBKAx7RL7HEGM0l
Threatray 4'162 similar samples on MalwareBazaar
TLSH T15D2523CA33E4931ADD786BB8E46085650F72D55B3442FB39EE84B4988B73781CE605B3
File icon (PE):PE icon
dhash icon dadadadaa6a6a6a6 (12 x Formbook, 8 x AgentTesla, 5 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
194.5.98.148:6776

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
194.5.98.148:6776 https://threatfox.abuse.ch/ioc/390269/

Intelligence


File Origin
# of uploads :
2
# of downloads :
291
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Nanocore
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 597934 Sample: gymSOk6I6N.exe Startdate: 28/03/2022 Architecture: WINDOWS Score: 100 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Multi AV Scanner detection for dropped file 2->48 50 9 other signatures 2->50 7 gymSOk6I6N.exe 7 2->7         started        11 dhcpmon.exe 5 2->11         started        process3 file4 32 C:\Users\user\AppData\...\HcQQRxHYbsLTrn.exe, PE32 7->32 dropped 34 C:\Users\user\AppData\Local\...\tmpD97B.tmp, XML 7->34 dropped 36 C:\Users\user\AppData\...\gymSOk6I6N.exe.log, ASCII 7->36 dropped 52 Uses schtasks.exe or at.exe to add and modify task schedules 7->52 54 Adds a directory exclusion to Windows Defender 7->54 13 gymSOk6I6N.exe 1 13 7->13         started        18 powershell.exe 25 7->18         started        20 schtasks.exe 1 7->20         started        22 schtasks.exe 11->22         started        24 dhcpmon.exe 11->24         started        signatures5 process6 dnsIp7 42 azuite1.ddns.net 194.5.98.148, 49771, 49774, 49775 DANILENKODE Netherlands 13->42 38 C:\Program Files (x86)\...\dhcpmon.exe, PE32 13->38 dropped 40 C:\Users\user\AppData\Roaming\...\run.dat, data 13->40 dropped 56 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->56 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        30 conhost.exe 22->30         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-03-24 01:59:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
27 of 42 (64.29%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer suricata trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Checks computer location settings
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
azuite1.ddns.net:6776
127.0.0.1:6776
Unpacked files
SH256 hash:
dc5c057b0ee1eb079cf189762aac69f0d86338ea18795dc4fbf7ed9b5a45c2eb
MD5 hash:
4103ed94f4747b30e166cf3c25416f47
SHA1 hash:
d553a67056e94f60d621ca42dcecd6d93f9ef1ad
SH256 hash:
dcd811e86ad16ff1788a79cce77940dc91074d8e558b8bf40bcaeabf9b848757
MD5 hash:
11986e5cac92d5dc7ad9aee04d428ef3
SHA1 hash:
c29d97a2eed398db2d826084e9a7fb754af86095
SH256 hash:
b559f645a30c2cd5261e97ecbe89a493d5d90790ce08eb4289ae25608e2924ea
MD5 hash:
608ee0438f06936f54c30f30c59d73e4
SHA1 hash:
47f1397edc7b0d9a30b3affbd0b63001f499b004
SH256 hash:
34bb8ab4f4af2b2834e83d1cbab2bc16baa1a0c536d0721531b4072fb40629df
MD5 hash:
7d18221fcd5ca3f58f37dfb05351ba32
SHA1 hash:
29a4b433843c85da132da6ca5253bbe80b9e5320
Malware family:
NanoCore
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments