MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c3337c223ba36106b034308f6e82bd90786bee9b2bf201e083e5f7c2060016d. 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: 11


Intelligence 11 IOCs 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8c3337c223ba36106b034308f6e82bd90786bee9b2bf201e083e5f7c2060016d
SHA3-384 hash: 65711e24d33e20d634d2e650e016803cb3e6c97fa68607b2ecc97bf36b1b928c75c25c7afe3a73f78309aba440df42d0
SHA1 hash: 5afc22713a0d6bddf06ea0e747b7376e147c8d6f
MD5 hash: fcd553ee1b376c6f8b6a44d433c7d8a3
humanhash: william-south-uncle-echo
File name:Doc151.pif.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:983'552 bytes
First seen:2022-08-02 12:26:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:PHz1y6C7UGDeYSNOwzrbUKGOmXQkCVOfpbMRsZ:71bC7C5rLGLXQh3Rs
TLSH T16A25492C3E413A76EE5E9535DD430A39BB270B03EB4BE9C267DB25C6836F1691D05C88
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
107.182.129.59:2000

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
107.182.129.59:2000 https://threatfox.abuse.ch/ioc/841128/

Intelligence

File Origin
# of uploads :
1
# of downloads :
339
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Doc151.pif.exe
Verdict:
Malicious activity
Analysis date:
2022-08-03 07:19:47 UTC
Tags:
trojan rat agenttesla opendir stealer
Link:
https://app.any.run/tasks/978a3094-923f-4867-87f2-c2ebcb24d983

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/295834/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.26551.14856.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62e91872bcf76fcb6cdc48a0/reports/43fca9bb-be86-41b8-a4b1-74bbb4a9aa3d/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ee1f24f3-b1ea-4b1c-9e78-295b54f5df2e
Result
Threat name:
Nanocore, AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1044836
Signature
.NET source code contains very large array initializations
Antivirus detection for URL or domain
Binary or sample is protected by dotNetProtector
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Document exploit detected (process start blacklist hit)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Injects files into Windows application
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Snort IDS alert for network traffic
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 677330 Sample: Doc151.pif.exe Startdate: 02/08/2022 Architecture: WINDOWS Score: 100 70 Snort IDS alert for network traffic 2->70 72 Multi AV Scanner detection for domain / URL 2->72 74 Malicious sample detected (through community Yara rule) 2->74 76 11 other signatures 2->76 8 Doc151.pif.exe 6 2->8         started        12 excel.exe 1 2->12         started        14 qmsq.exe 2 2->14         started        16 excel.exe 1 2->16         started        process3 file4 64 C:\Users\user\AppData\Local\...nq1610.exe, PE32 8->64 dropped 66 C:\Users\user\AppData\...\Doc151.pif.exe.log, ASCII 8->66 dropped 90 Writes to foreign memory regions 8->90 92 Tries to delay execution (extensive OutputDebugStringW loop) 8->92 94 Injects a PE file into a foreign processes 8->94 18 vbc.exe 17 4 8->18         started        23 Enq1610.exe 4 8->23         started        25 cmd.exe 3 8->25         started        31 2 other processes 8->31 96 Document exploit detected (process start blacklist hit) 12->96 98 Injects files into Windows application 12->98 27 conhost.exe 12->27         started        100 Machine Learning detection for dropped file 14->100 29 conhost.exe 16->29         started        signatures5 process6 dnsIp7 68 208.67.106.111, 49779, 80 GRAYSON-COLLIN-COMMUNICATIONSUS United States 18->68 58 C:\Users\user\AppData\Local\...\excel.exe, PE32 18->58 dropped 78 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->78 80 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->80 82 Tries to steal Mail credentials (via file / registry access) 18->82 88 5 other signatures 18->88 84 Machine Learning detection for dropped file 23->84 33 cmd.exe 2 23->33         started        36 cmd.exe 1 23->36         started        38 cmd.exe 2 23->38         started        60 C:\Users\user\AppData\Roaming\qmsq\qmsq.exe, PE32 25->60 dropped 62 C:\Users\user\...\qmsq.exe:Zone.Identifier, ASCII 25->62 dropped 40 conhost.exe 25->40         started        86 Uses schtasks.exe or at.exe to add and modify task schedules 31->86 42 conhost.exe 31->42         started        44 conhost.exe 31->44         started        46 schtasks.exe 1 31->46         started        file8 signatures9 process10 file11 56 C:\Users\user\AppData\Roaming\good\good.exe, PE32 33->56 dropped 48 conhost.exe 33->48         started        50 conhost.exe 36->50         started        52 schtasks.exe 1 36->52         started        54 conhost.exe 38->54         started        process12
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8c3337c223ba36106b034308f6e82bd90786bee9b2bf201e083e5f7c2060016d/
Threat name:
Win32.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2022-08-02 10:31:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rqztpqrdxi3ba2ydimepn2bl3edynpxjwk7sahqihzpxyidaafwq._file
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:nanocore collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220802-pmrgnafhfr/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: SetClipboardViewer
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Uses the VBS compiler for execution
Executes dropped EXE
AgentTesla
NanoCore
Malware Config
C2 Extraction:
http://208.67.106.111/flip/inc/302fd3be3ee791.php
prakashrao.hopto.org:2000
Unpacked files
SH256 hash:
a207d1388a322fc8e1979ca40585a7485031e9a531c3841492776315eb06ebc1
MD5 hash:
8c11eeb20abd1853eeab3eec5ef94e6f
SHA1 hash:
79a19a4a8e1abc2e1594784104081d89a79f36f3
Link:
https://www.unpac.me/results/f9342ef8-dbf7-4218-bbde-286a66f9d759/
SH256 hash:
4a1237696ce09de97a4daf37fc60413467d6b1abff0915d0000fa80152fbdaa3
MD5 hash:
2371f431739aa8f73b33dcd5f53ed5f2
SHA1 hash:
6377a803ab87e766d2ecf688bd07ae6f3bbbc145
Link:
https://www.unpac.me/results/f9342ef8-dbf7-4218-bbde-286a66f9d759/
SH256 hash:
8c3337c223ba36106b034308f6e82bd90786bee9b2bf201e083e5f7c2060016d
MD5 hash:
fcd553ee1b376c6f8b6a44d433c7d8a3
SHA1 hash:
5afc22713a0d6bddf06ea0e747b7376e147c8d6f
Link:
https://www.unpac.me/results/f9342ef8-dbf7-4218-bbde-286a66f9d759/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8c3337c223ba36106b034308f6e82bd90786bee9b2bf201e083e5f7c2060016d

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:INDICATOR_EXE_Packed_Babel
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Babel
Rule name:INDICATOR_EXE_Packed_Dotfuscator
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Dotfuscator
Rule name:INDICATOR_EXE_Packed_dotNetProtector
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with dotNetProtector
Rule name:INDICATOR_EXE_Packed_Goliath
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Goliath
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/295834/

Comments