MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0523a910917e35ea987363881f619e7ffd9de72bdb2b24a1b109581b8273631f. 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: 8


Intelligence 8 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0523a910917e35ea987363881f619e7ffd9de72bdb2b24a1b109581b8273631f
SHA3-384 hash: db29c22d55df557d40976c328a63faf3c94632e076775388f784ae21091e7c120a6613a433266bac0d7ef836ad4828eb
SHA1 hash: 6ec3d2ee404b2ccbe2cd6f5e925ca5bbf5e00a3a
MD5 hash: adcd94e9182e38444cecac7df14f290b
humanhash: pip-november-tango-lamp
File name:PO Invoice DC210821Q.vbs
Download: download sample
Signature GuLoader
Create hunting rule
File size:80'669 bytes
First seen:2022-01-17 08:46:37 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 1536:3Eeq/AF39MX12WktTuW6VRp2bLQbKxnc/1vnVAhdgXwU:3EeT39Gk9zTwpyhdVU
Threatray 13'444 similar samples on MalwareBazaar
TLSH T1F5736FE7701276881DA871A3FD2F0D19815CEB3E63A010F7AF9150613662DDE97CEE98
Reporter abuse_ch
Tags:GuLoader vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
343
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/219764/
Detection(s):
SecuriteInfo.com.Trojan.Script.Wacatac.Bml.8772.19515.UNOFFICIAL
Create hunting rule

Result
Verdict:
MALICIOUS
Details
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/921673
Signature
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Detected FormBook malware
Encrypted powershell cmdline option found
Found malware configuration
Hides threads from debuggers
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Performs DNS queries to domains with low reputation
Potential evasive VBS script found (sleep loop)
Potential malicious VBS script found (has network functionality)
Potential malicious VBS script found (suspicious strings)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
VBScript performs obfuscated calls to suspicious functions
Very long command line found
Wscript starts Powershell (via cmd or directly)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 554151 Sample: PO Invoice DC210821Q.vbs Startdate: 17/01/2022 Architecture: WINDOWS Score: 100 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Yara detected FormBook 2->65 67 7 other signatures 2->67 11 wscript.exe 2 2->11         started        process3 signatures4 79 VBScript performs obfuscated calls to suspicious functions 11->79 81 Wscript starts Powershell (via cmd or directly) 11->81 83 Very long command line found 11->83 85 Encrypted powershell cmdline option found 11->85 14 powershell.exe 24 11->14         started        process5 signatures6 91 Tries to detect Any.run 14->91 93 Hides threads from debuggers 14->93 17 ieinstal.exe 6 14->17         started        21 csc.exe 3 14->21         started        24 conhost.exe 14->24         started        process7 dnsIp8 49 apadds.com 103.117.212.77, 443, 49843 WEBWERKS-ASWebWerksIndiaPvtLtdIN India 17->49 69 Modifies the context of a thread in another process (thread injection) 17->69 71 Tries to detect Any.run 17->71 73 Maps a DLL or memory area into another process 17->73 75 3 other signatures 17->75 26 explorer.exe 17->26 injected 47 C:\Users\user\AppData\Local\...\rxhhzmcf.dll, PE32 21->47 dropped 30 cvtres.exe 1 21->30         started        file9 signatures10 process11 dnsIp12 51 www.liningning.xyz 26->51 87 System process connects to network (likely due to code injection or exploit) 26->87 89 Performs DNS queries to domains with low reputation 26->89 32 control.exe 1 18 26->32         started        36 autochk.exe 26->36         started        signatures13 process14 file15 43 C:\Users\user\AppData\...\O3-logrv.ini, data 32->43 dropped 45 C:\Users\user\AppData\...\O3-logri.ini, data 32->45 dropped 53 Detected FormBook malware 32->53 55 Creates an undocumented autostart registry key 32->55 57 Tries to steal Mail credentials (via file / registry access) 32->57 59 4 other signatures 32->59 38 cmd.exe 2 32->38         started        signatures16 process17 signatures18 77 Tries to harvest and steal browser information (history, passwords, etc) 38->77 41 conhost.exe 38->41         started        process19
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0523a910917e35ea987363881f619e7ffd9de72bdb2b24a1b109581b8273631f/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=aur2seerpy26vgdtmoeb6ym6p76z3zzl3mvsjinrbfmbxattmmpq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1d5e0028a025d76c09fbf798a8a3311ed7477c985b16ae8078b110e762778154
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5e12314df61fd39cad151a41fb0d3188e437c591fa7498f09f103dea4a46f141
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6d1ae3278059d592ae7c4426df9456553b8abfbc3bd90ce0f8d1792e94ae95c2
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95e46ac69b189a47167d193f4d43756f9cf965deba4ae6608ea20115209090e2
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ace8d85c2f02bd3d531cd8d609d23c6d35588ecce52f40a8d129b39a6b1d7723
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c3e318eafb968f401d5165bb17e765613339ce25e4e48e99ea734580fae06d84
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ecc6439ff97e4b77f3af320e4c224f712478610fd28a1b6e6a03573c4b90f405
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ee529100b5fc7566711f13b97f573e81dccbb4a2b6713f35797b8c0d284b80b2
GuLoader
+ 13'434 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:guloader campaign:ty13 downloader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220117-kpwryahdbk/
Behaviour
Checks processor information in registry
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks QEMU agent file
Checks computer location settings
Adds policy Run key to start application
Formbook Payload
Formbook
Guloader,Cloudeye
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/0523a910917e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/0523a910917e35ea987363881f619e7ffd9de72bdb2b24a1b109581b8273631f

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/219764/

Comments