MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 3f73a4cc7c6caf091af3625073e39c6ec824bc2b6e879fc92e285673cbe0266c. 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
WSHRAT
Vendor detections: 9
| SHA256 hash: | 3f73a4cc7c6caf091af3625073e39c6ec824bc2b6e879fc92e285673cbe0266c |
|---|---|
| SHA3-384 hash: | 23d139b5168693564fadd7d13772077526bbeb04a5bd3f8fd095ce94c0e8c51ae8d719fb4e73c5a6a70c4b680addcaa2 |
| SHA1 hash: | 05dae78416a01d05d9c693a84847a846350e1356 |
| MD5 hash: | 479810613638f62f4d5f95473c0f0aed |
| humanhash: | montana-river-shade-fanta |
| File name: | Recept.scr |
| Download: | download sample |
| Signature | WSHRAT |
| File size: | 1'078'272 bytes |
| First seen: | 2021-02-04 17:24:24 UTC |
| Last seen: | 2021-02-10 18:51:08 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 24576:mZt/EQu7vK5SAjgWW/mUnBFAD+veMhXGo9NspTGmRafM:mZt/q7SEOMcSv3gJpT5cM |
| Threatray | 18 similar samples on MalwareBazaar |
| TLSH | 833502907564C75AC9742BF65DB4C45813BB7C0AAC35D70FBD823BCD2A72B910A89E83 |
| Reporter |  abuse_ch |
| Tags: | RAT scr wshrat |
Intelligence
File Origin
# of uploads :
3
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Creating a file in the %AppData% directory
Creating a process from a recently created file
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling the 'hidden' option for recently created files
Sending an HTTP POST request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Creating a file in the mass storage device
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices by creating a special LNK file
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:
WSHRAT
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Connects to a pastebin service (likely for C&C)
Contains VNC / remote desktop functionality (version string found)
Drops VBS files to the startup folder
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Potential evasive VBS script found (sleep loop)
Potential malicious VBS script found (has network functionality)
Potential malicious VBS script found (suspicious strings)
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Sigma detected: Drops script at startup location
Sigma detected: Register Wscript In Run Key
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses known network protocols on non-standard ports
Windows Shell Script Host drops VBS files
Wscript called in batch mode (surpress errors)
Yara detected AntiVM_3
Yara detected WSHRAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-02-04 06:05:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
34
AV detection:
36 of 48 (75.00%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 8 additional samples on MalwareBazaar
Result
Malware family:
wshrat
Score:
10/10
Tags:
family:wshrat persistence ransomware trojan
Behaviour
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Drops startup file
Blocklisted process makes network request
WSHRAT
WSHRAT Payload
Unpacked files
SH256 hash:
a2a0bbbe8c9ee88441356010f63455c50dfcafe663db757bbc453c815c51d720
MD5 hash:
11e80c54bfeff7f0c120dae46df0a8be
SHA1 hash:
d597b9b0dcac06f0aa00a931bb90de8eba564651
SH256 hash:
c3fe11ca8b4706c03ec9021d86b6d1c71be119bce33876c481cf65cd8f6fc85e
MD5 hash:
a6a43d5b8891d528dab385aec8ddae19
SHA1 hash:
4a2d8697e3a13cc12d894c383ab2d17cf7fc4505
SH256 hash:
eff8d529767f0c74846106ff07888627b683689234097013960e5908d241fdb2
MD5 hash:
172e8215e1c587375bc546c257d4fff6
SHA1 hash:
25f53450ec8277753d352006d48a80dc9a5fc950
SH256 hash:
3f73a4cc7c6caf091af3625073e39c6ec824bc2b6e879fc92e285673cbe0266c
MD5 hash:
479810613638f62f4d5f95473c0f0aed
SHA1 hash:
05dae78416a01d05d9c693a84847a846350e1356
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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