MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2b55ffb492faeced1033c534e4f462d3c0ac9f914f991361ba67067538a05d1. 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


Intelligence 9 IOCs YARA File information Comments

SHA256 hash: a2b55ffb492faeced1033c534e4f462d3c0ac9f914f991361ba67067538a05d1
SHA3-384 hash: 4c4d0ef7377c225a302dd12a816b4c9c67f3c47e7a90a4ca2fc524ab20e2e58343754a225e1716af98dbb49d4ea2033f
SHA1 hash: 74c5e44d48b86414cbe8e604bb24fe03a5ced634
MD5 hash: d070bf6585deded9e331ae77de76fcc4
humanhash: quebec-sweet-four-oregon
File name:d070bf6585deded9e331ae77de76fcc4.exe
Download: download sample
Signature WSHRAT
File size:1'193'472 bytes
First seen:2021-02-05 19:46:11 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:Yma+QZG0nbLYR1yTb6h0BacWadNihTIvGn7Rk3w6hWNudTzIfAH:jcZnbLYXyTb6oacjosOu8O0G
Threatray 725 similar samples on MalwareBazaar
TLSH 0545DFAC366475DFC917DD76CAA86C68EA6064B7530BC20391131AEC9A0CADBCF145F3
Reporter abuse_ch
Tags:exe wshrat

Intelligence


File Origin
# of uploads :
1
# of downloads :
201
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
EU441789083.doc
Verdict:
Malicious activity
Analysis date:
2021-02-05 16:57:30 UTC
Tags:
trojan exploit CVE-2017-11882 loader evasion stealer wshrat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Connects to a pastebin service (likely for C&C)
Contains VNC / remote desktop functionality (version string found)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 349424 Sample: u6Wf8vCDUv.exe Startdate: 05/02/2021 Architecture: WINDOWS Score: 100 54 Sigma detected: Register Wscript In Run Key 2->54 56 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->56 58 Antivirus / Scanner detection for submitted sample 2->58 60 12 other signatures 2->60 8 u6Wf8vCDUv.exe 3 2->8         started        12 wscript.exe 2 1 2->12         started        15 wscript.exe 2->15         started        17 3 other processes 2->17 process3 dnsIp4 36 C:\Users\user\AppData\...\u6Wf8vCDUv.exe.log, ASCII 8->36 dropped 62 Detected unpacking (changes PE section rights) 8->62 64 Detected unpacking (overwrites its own PE header) 8->64 66 Potential malicious VBS script found (suspicious strings) 8->66 74 2 other signatures 8->74 19 u6Wf8vCDUv.exe 2 8->19         started        46 pastebin.com 12->46 68 System process connects to network (likely due to code injection or exploit) 12->68 70 Wscript called in batch mode (surpress errors) 12->70 22 wscript.exe 12->22         started        72 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 15->72 file5 signatures6 process7 file8 34 C:\Users\user\AppData\Roaming\fLOqD.vbs, assembler 19->34 dropped 24 wscript.exe 3 3 19->24         started        process9 dnsIp10 42 pastebin.com 104.23.99.190, 443, 49708, 49709 CLOUDFLARENETUS United States 24->42 44 192.168.2.1 unknown unknown 24->44 38 C:\Users\user\fLOqD.vbs, assembler 24->38 dropped 76 System process connects to network (likely due to code injection or exploit) 24->76 78 Potential malicious VBS script found (suspicious strings) 24->78 80 Potential malicious VBS script found (has network functionality) 24->80 82 5 other signatures 24->82 29 wscript.exe 15 24->29         started        file11 signatures12 process13 dnsIp14 48 mercedez.duckdns.org 185.19.85.172, 49713, 49714, 49715 DATAWIRE-ASCH Switzerland 29->48 50 104.23.98.190, 443, 49710, 49711 CLOUDFLARENETUS United States 29->50 52 2 other IPs or domains 29->52 40 C:\Users\user\AppData\Roaming\...\fLOqD.vbs, assembler 29->40 dropped 84 System process connects to network (likely due to code injection or exploit) 29->84 file15 signatures16
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-02-05 15:38:15 UTC
AV detection:
36 of 47 (76.60%)
Threat level:
  5/5
Result
Malware family:
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:
eff8d529767f0c74846106ff07888627b683689234097013960e5908d241fdb2
MD5 hash:
172e8215e1c587375bc546c257d4fff6
SHA1 hash:
25f53450ec8277753d352006d48a80dc9a5fc950
SH256 hash:
a2a0bbbe8c9ee88441356010f63455c50dfcafe663db757bbc453c815c51d720
MD5 hash:
11e80c54bfeff7f0c120dae46df0a8be
SHA1 hash:
d597b9b0dcac06f0aa00a931bb90de8eba564651
SH256 hash:
703a226fa50d681b7108254d6b2b1d197a8505916fac43e23699f7d951708e2b
MD5 hash:
de71a463ae247466ab0ac1a5c4ea4282
SHA1 hash:
f8055142da618f5fca6f06c2d461b549896df207
SH256 hash:
a2b55ffb492faeced1033c534e4f462d3c0ac9f914f991361ba67067538a05d1
MD5 hash:
d070bf6585deded9e331ae77de76fcc4
SHA1 hash:
74c5e44d48b86414cbe8e604bb24fe03a5ced634
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Web download

WSHRAT

Executable exe a2b55ffb492faeced1033c534e4f462d3c0ac9f914f991361ba67067538a05d1

(this sample)

  
Delivery method
Distributed via web download

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