MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 faa265a4262f8913da3fea01c9def0a666c0fd7630c35a63463af4a51b5de6e1. 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
| SHA256 hash: | faa265a4262f8913da3fea01c9def0a666c0fd7630c35a63463af4a51b5de6e1 |
|---|---|
| SHA3-384 hash: | 31f387d1dd54ae3fd9199df50f884c62bb487e0be40c19475f2f7038a8463fc6d03eb2a115bc49fed4da7c671d3677f5 |
| SHA1 hash: | fdfcb81127550ab50f75d4f7801c2d0ca22488f7 |
| MD5 hash: | 2d4e3779b7e781b1ef65963c1a2feb88 |
| humanhash: | artist-freddie-uniform-juliet |
| File name: | purchase order.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 32'768 bytes |
| First seen: | 2022-03-16 09:16:19 UTC |
| Last seen: | 2022-03-16 13:03:28 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 384:FnjRI5auUBtdCuHE3/Afi7B02PZpBvgOeHItoUtPx+0d:F6HUBHbHEvAfS/PZp92fOp+q |
| Threatray | 4'389 similar samples on MalwareBazaar |
| TLSH | T14AE24BC6F7868364ECEB163059379F000717FF16B852262969D57A0B3FB32429C6B61B |
| File icon (PE): |  |
| dhash icon | e0e4a3a6a4b8b8a8 (37 x Formbook, 9 x AZORult, 9 x Loki) |
| Reporter |  abuse_ch |
| Tags: | exe NanoCore RAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 194.5.97.17:5023 | https://threatfox.abuse.ch/ioc/395666/ |
Intelligence
File Origin
# of uploads :
2
# of downloads :
285
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
br.exe
Verdict:
Suspicious activity
Analysis date:
2022-03-16 10:06:23 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file
Creating a window
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
obfuscated packed
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.
Verdict:
Unknown
Result
Threat name:
Nanocore
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: NanoCore
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
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
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected MSILDownloaderGeneric
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Status:
Malicious
First seen:
2022-03-16 09:17:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
23 of 27 (85.19%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
nanocorerat
Similar samples:
+ 4'379 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
n/a
Behaviour
Delays execution with timeout.exe
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Unpacked files
SH256 hash:
faa265a4262f8913da3fea01c9def0a666c0fd7630c35a63463af4a51b5de6e1
MD5 hash:
2d4e3779b7e781b1ef65963c1a2feb88
SHA1 hash:
fdfcb81127550ab50f75d4f7801c2d0ca22488f7
Malware family:
NanoCore
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
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_SUSPICIOUS_EXE_DiscordURL |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables Discord URL observed in first stage droppers |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | SUSP_Discord_Attachments_URL |
|---|---|
| Author: | SECUINFRA Falcon Team |
| Description: | Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads |
| Rule name: | SUSP_PE_Discord_Attachment_Oct21_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN) |
| Reference: | Internal Research |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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