MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 91f6fc2ae99e090dad56e53c7bf258dd4f43df79ac02a11f2620c31f045fc87f. 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: 10
| SHA256 hash: | 91f6fc2ae99e090dad56e53c7bf258dd4f43df79ac02a11f2620c31f045fc87f |
|---|---|
| SHA3-384 hash: | 799e3cec78d3a3a87ab0840e52a069aee844305f4eeeab503dd5eb225f82d9ec45293e8e1b399c8510ae6d2af6d2bbd7 |
| SHA1 hash: | 538871e91c9cac38af31bd09fe456843d841f586 |
| MD5 hash: | 0d50c8e7c3f044099056bfb318f108c6 |
| humanhash: | seven-cup-robert-early |
| File name: | fixxing.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 730'112 bytes |
| First seen: | 2021-05-03 17:19:25 UTC |
| Last seen: | 2021-05-03 18:11:36 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 12288:ctl3e+PHoCAQ1q5y/e2h3QFRiFD94KnBedBJmrRiD8pBf5rcrM:ctl3e+foC/q4oDiFJRBedOrQYpR5rm |
| Threatray | 1 similar samples on MalwareBazaar |
| TLSH | 9FF4C0F132784B87E6BE9F74EE58206023F2792DE3D1E24DBDA4329C12A1790065D776 |
| Reporter |  James_inthe_box |
| Tags: | exe NanoCore |
Intelligence
File Origin
# of uploads :
2
# of downloads :
91
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
purchase order confirmation.exe
Verdict:
Malicious activity
Analysis date:
2021-05-03 18:57:24 UTC
Tags:
trojan stealer vidar loader opendir nanocore rat
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
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
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Detection:
nanocore
Threat name:
ByteCode-MSIL.Trojan.Agentesla
Status:
Malicious
First seen:
2021-05-01 21:11:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
23 of 29 (79.31%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
unknown
Result
Malware family:
nanocore
Score:
10/10
Tags:
family:nanocore evasion keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
45.137.22.50:4557
127.0.0.1:4557
127.0.0.1:4557
Unpacked files
SH256 hash:
bdf79e57b5574f9bafb56f6d0592f5ee429df7eb0ad536fbdb4f2956aae36f87
MD5 hash:
826b29e2a141b055a5491c9d7dc6eea7
SHA1 hash:
af4201362b8603bf7e4b6e2ead1cfb610dd7c0a9
SH256 hash:
91f6fc2ae99e090dad56e53c7bf258dd4f43df79ac02a11f2620c31f045fc87f
MD5 hash:
0d50c8e7c3f044099056bfb318f108c6
SHA1 hash:
538871e91c9cac38af31bd09fe456843d841f586
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Delivery method
Other
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