MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 1ffeb0811111c36b86f1ec119e8c7c919b4da8da4dfc6964f15155d218634a39. 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
njrat
Vendor detections: 10
| SHA256 hash: | 1ffeb0811111c36b86f1ec119e8c7c919b4da8da4dfc6964f15155d218634a39 |
|---|---|
| SHA3-384 hash: | 654eb1d2c498deb7c828a23e907e6613ee55c47a0835606113ad690cd1d692b128003d71fb53ca22ba8cf7cb00e46bb6 |
| SHA1 hash: | 1953144cf5568c46072f6c5bec095e5d7c09b652 |
| MD5 hash: | 7cd086a7fa0eb66d303615c317a373c6 |
| humanhash: | leopard-lake-blue-dakota |
| File name: | 1ffeb0811111c36b86f1ec119e8c7c919b4da8da4dfc6964f15155d218634a39 |
| Download: | download sample |
| Signature | njrat |
| File size: | 381'952 bytes |
| First seen: | 2021-02-28 07:06:44 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 6144:3JfMtoxiHv4FlsL0O6vs+TUAbxTOj0lfqsBLeEOOUUMxvze6S/N:3B5xigjEP8EeJfJBq3bxvzeB |
| Threatray | 433 similar samples on MalwareBazaar |
| TLSH | E784BD1526DDA61CF07E7A365AB0554F93FABE125223D96F2CE4318F0D72E408B2172B |
| Reporter |  JAMESWT_WT |
| Tags: | NjRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
112
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1ffeb0811111c36b86f1ec119e8c7c919b4da8da4dfc6964f15155d218634a39
Verdict:
Suspicious activity
Analysis date:
2021-02-28 09:43:06 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Njrat
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
Njrat
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Changes the view of files in windows explorer (hidden files and folders)
Contains functionality to log keystrokes (.Net Source)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
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 dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Njrat
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Spyware.FormBook
Status:
Malicious
First seen:
2021-02-27 11:34:59 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 423 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
9/10
Tags:
evasion
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Unpacked files
SH256 hash:
e624003658c4f8b349f567c82229fd15d1e63d3d20fe6f7b4388403038cd2a44
MD5 hash:
b6ce7c1d81b9271eab825ea63de154c3
SHA1 hash:
0e7b89555314f8908c1098b652c9bf50e5ecc27b
SH256 hash:
1ffeb0811111c36b86f1ec119e8c7c919b4da8da4dfc6964f15155d218634a39
MD5 hash:
7cd086a7fa0eb66d303615c317a373c6
SHA1 hash:
1953144cf5568c46072f6c5bec095e5d7c09b652
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
0.80
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: | CAP_HookExKeylogger |
|---|---|
| Author: | Brian C. Bell -- @biebsmalwareguy |
| Reference: | https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar |
| Rule name: | CN_disclosed_20180208_c |
|---|---|
| Author: | Florian Roth |
| Description: | Detects malware from disclosed CN malware set |
| Reference: | https://twitter.com/cyberintproject/status/961714165550342146 |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer |
|---|---|
| Author: | ditekSHen |
| Description: | detects Windows exceutables potentially bypassing UAC using eventvwr.exe |
| Rule name: | Njrat |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect njRAT in memory |
| Rule name: | Ping_Del_method_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | cmd ping IP nul del |
| Rule name: | Select_from_enumeration |
|---|---|
| Author: | James_inthe_box |
| Description: | IP and port combo |
| Rule name: | win_njrat_w1 |
|---|---|
| Author: | Brian Wallace @botnet_hunter <bwall@ballastsecurity.net> |
| Description: | Identify njRat |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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