MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 717ab569e1a4743ce73546e57a7a1f875425747672b5f2d6fce34af35ab8c16f. 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


GuLoader


Vendor detections: 9


Intelligence 9 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 717ab569e1a4743ce73546e57a7a1f875425747672b5f2d6fce34af35ab8c16f
SHA3-384 hash: e267401c2ef8686958a6e32bb753936a945ee30938c6f8725bfc7c37ced51ea2dc867921817c6a043e92820b506075f4
SHA1 hash: 2ae6f2ea4b7ea2e3bb9afe1434cb514d4525adf8
MD5 hash: 0f0ea770d4c72ba678d510d91b86ab27
humanhash: ten-utah-mockingbird-vegan
File name:Orders.scr
Download: download sample
Signature GuLoader
Create hunting rule
File size:94'208 bytes
First seen:2020-08-13 14:02:04 UTC
Last seen:2020-08-13 14:54:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 86793d71272c007a8e8f8f67b7e48e2d (1 x GuLoader)
ssdeep 1536:S9K+UJfdr5Nexdz1/9FWEhs+ryc0RD2n:S9KHxe3hViayciD8
Threatray 467 similar samples on MalwareBazaar
TLSH A0934A11D9C5D9F1F218C2B42D3676F7097B6C3008625E0F6C2E7A5AA672D93A27231F
Reporter abuse_ch
Tags:GuLoader Hostwinds scr


Avatar
abuse_ch
Malspam distributing GuLoader:

HELO: hwsrv-761317.hostwindsdns.com
Sending IP: 104.168.173.112
From: info@ricksaezp.com
Reply-To: info@ricksaezp.com
Subject: Quote#CON-071720-EB
Attachment: Products_Order_pictures.rar (contains "Orders.scr")

GuLoader payload URL:
https://onedrive.live.com/download?cid=6A7B40A2BC530C6C&resid=6A7B40A2BC530C6C%21107&authkey=AImA0SeotHLbN2A

Intelligence

File Origin
# of uploads :
2
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/45216/
Detection(s):
SecuriteInfo.com.Variant.Graftor.816111.3409.28659.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
Creating a file
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Deleting a recently created file
Connection attempt
Using the Windows Management Instrumentation requests
Forced shutdown of a system process
Setting a single autorun event
Unauthorized injection to a system process
Result
Threat name:
AgentTesla GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/426513
Signature
Contains functionality to hide a thread from the debugger
Contains functionality to register a low level keyboard hook
Creates autostart registry keys with suspicious values (likely registry only malware)
Drops PE files to the user root directory
Drops PE files with a suspicious file extension
Found malware configuration
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
Machine Learning detection for dropped file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: RegAsm connects to smtp port
Tries to detect Any.run
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 265904 Sample: Orders.scr Startdate: 14/08/2020 Architecture: WINDOWS Score: 100 83 Found malware configuration 2->83 85 Sigma detected: RegAsm connects to smtp port 2->85 87 Yara detected GuLoader 2->87 89 3 other signatures 2->89 7 Orders.exe 1 2->7         started        10 Tode7.scr 1 2->10         started        12 Tode7.scr 1 2->12         started        14 OpenWith.exe 2->14         started        process3 signatures4 91 Writes to foreign memory regions 7->91 93 Tries to detect Any.run 7->93 95 Hides threads from debuggers 7->95 16 RegAsm.exe 7->16         started        19 RegAsm.exe 2 20 7->19         started        23 RegAsm.exe 10 10->23         started        25 RegAsm.exe 10->25         started        27 RegAsm.exe 10->27         started        33 2 other processes 10->33 29 RegAsm.exe 10 12->29         started        31 RegAsm.exe 12->31         started        35 2 other processes 12->35 process5 dnsIp6 61 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->61 63 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 16->63 65 Drops PE files to the user root directory 16->65 79 3 other signatures 16->79 47 smtp.yandex.ru 77.88.21.158, 49743, 49744, 587 YANDEXRU Russian Federation 19->47 49 onedrive.live.com 19->49 59 2 other IPs or domains 19->59 43 C:\Users\user\items list, PE32 19->43 dropped 45 C:\Users\user\Untriumphable\Tode7.scr, PE32 19->45 dropped 67 Creates autostart registry keys with suspicious values (likely registry only malware) 19->67 69 Tries to detect Any.run 19->69 71 Hides threads from debuggers 19->71 37 conhost.exe 19->37         started        51 onedrive.live.com 23->51 53 54j6lq.by.files.1drv.com 23->53 73 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 23->73 75 Tries to steal Mail credentials (via file access) 23->75 77 Tries to harvest and steal ftp login credentials 23->77 81 2 other signatures 23->81 39 conhost.exe 23->39         started        55 onedrive.live.com 29->55 57 54j6lq.by.files.1drv.com 29->57 41 conhost.exe 29->41         started        file7 signatures8 process9
Detection:
guloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/717ab569e1a4743ce73546e57a7a1f875425747672b5f2d6fce34af35ab8c16f/
Threat name:
Win32.Trojan.Vebzenpak
Create hunting rule
Status:
Malicious
First seen:
2020-08-13 13:47:04 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=of5lk2pbur2dzzzvi3sxu6q7q5kck5dwok27fvx44nfpgwvyyfxq._file
Verdict:
malicious
Label(s):
guloader
Create hunting rule
Similar samples:
859cc79621eca1e9b1bc85a569d0ddfcdf83440090e8e4ed7aa8054e2c9c460a
GuLoader
a0c9160c101b0eeaa3cc660fd1e22abbd54d566068acdc2968afbef1590548c2
GuLoader
b05998bc4d111c80719ab38c75918662f8151fd5e5e223cdc90f0d97caad3b6e
GuLoader
b267c228b488319e3514de6a929f16f55e18cf8ac9924f2989b199ebe6b51a59
GuLoader
bc0a3976025579d4a076226c8b5b237e81eb42b558ce68855694c5963722acbd
GuLoader
d2669f09cb9d457a0bb1ebc7db59cc0f53778ebf2fbd90f84b7c3fd587a109bb
GuLoader
dd7268284b041dafef56b6a8a4b565b3a0c54e1eaacc68121a1688e03798e72d
GuLoader
ddf6f04276c1d976e62e199e6c928fb7a3d7aaec455a1859f8d8f605c89ffc64
GuLoader
f02253cc15ef8590d38f2c623609c3d462c2352da4aab698b3959c8ba4ced4e7
GuLoader
fff7d8c78dd6f34509bde90ea015593f8e2fce0b0022899f96982f0772c6b9b2
GuLoader
+ 457 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
persistence spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200813-neqwgcntpx/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Cryptor
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/717ab569e1a4743ce73546e57a7a1f875425747672b5f2d6fce34af35ab8c16f

File information

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

Malspam

GuLoader

rar ef5bf38b533e6b5c650782d9c28bf142a97f99cf6748f3bbce576c448bfe2b0c

GuLoader

Executable exe 717ab569e1a4743ce73546e57a7a1f875425747672b5f2d6fce34af35ab8c16f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/431587/
  
Dropped by
MD5 91b962ebf4f334ca76fd3245f8a4607b
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/45216/
  
Dropped by
SHA256 ef5bf38b533e6b5c650782d9c28bf142a97f99cf6748f3bbce576c448bfe2b0c

Comments