MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a3c9386c12ded47cc0ee24c6f915de9ca5744e68573638aa4c533704bcfee31. 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


Formbook


Vendor detections: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3a3c9386c12ded47cc0ee24c6f915de9ca5744e68573638aa4c533704bcfee31
SHA3-384 hash: 1186ded614c3d8c3e2145890810cab7fcc6a99280c6c9aebbbddfd24a0e9275804252528b27fa438b52d6d086a27d3b7
SHA1 hash: 611917bf370e715c3092c697997a549f009eaa7d
MD5 hash: fb0421f4ec21ea6c6b67f8bc89b6ecc6
humanhash: golf-chicken-cardinal-lima
File name:Invoice__PDF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'887'744 bytes
First seen:2021-06-02 07:35:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'477 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:axG2TY1PK9rpZJQCJ2l02puRXrjp24t4TbYt1SLJRhJRPoTgI:uG205K9rJcl02UrVgPCARhTPokI
Threatray 30 similar samples on MalwareBazaar
TLSH 9995AEF8F56499A3C60DCB30C7E1ADB897713EFA1112491C0D98BB8D2B7379B4B6A405
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
123
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice__PDF.exe
Verdict:
Malicious activity
Analysis date:
2021-06-02 07:39:44 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/dc5c2035-f6ec-4a18-8cee-c952d0474c5a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/163947/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/795683
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Process Start Without DLL
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)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 428079 Sample: Invoice__PDF.exe Startdate: 02/06/2021 Architecture: WINDOWS Score: 100 50 www.kenziesboutique.com 2->50 52 kenziesboutique.com 2->52 64 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->64 66 Found malware configuration 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 13 other signatures 2->70 11 Invoice__PDF.exe 7 2->11         started        signatures3 process4 file5 40 C:\Users\user\AppData\...\hXpCiLrScthmJI.exe, PE32 11->40 dropped 42 C:\...\hXpCiLrScthmJI.exe:Zone.Identifier, ASCII 11->42 dropped 44 C:\Users\user\AppData\Local\...\tmpF92E.tmp, XML 11->44 dropped 46 C:\Users\user\...\Invoice__PDF.exe.log, ASCII 11->46 dropped 80 Uses schtasks.exe or at.exe to add and modify task schedules 11->80 82 Writes to foreign memory regions 11->82 84 Injects a PE file into a foreign processes 11->84 15 RegSvcs.exe 6 11->15         started        19 schtasks.exe 1 11->19         started        signatures6 process7 file8 48 C:\Users\user\AppData\Roaming\suSwVklf.exe, PE32 15->48 dropped 60 Tries to detect virtualization through RDTSC time measurements 15->60 62 Injects a PE file into a foreign processes 15->62 21 RegSvcs.exe 15->21         started        24 schtasks.exe 1 15->24         started        26 conhost.exe 19->26         started        signatures9 process10 signatures11 72 Modifies the context of a thread in another process (thread injection) 21->72 74 Maps a DLL or memory area into another process 21->74 76 Sample uses process hollowing technique 21->76 78 Queues an APC in another process (thread injection) 21->78 28 msiexec.exe 21->28         started        31 explorer.exe 21->31 injected 34 conhost.exe 24->34         started        process12 dnsIp13 86 Modifies the context of a thread in another process (thread injection) 28->86 88 Maps a DLL or memory area into another process 28->88 90 Tries to detect virtualization through RDTSC time measurements 28->90 36 cmd.exe 1 28->36         started        54 www.carnivalhotels.net 217.160.0.160, 49770, 80 ONEANDONE-ASBrauerstrasse48DE Germany 31->54 56 www.studentsafetysheild.store 31->56 58 studentsafetysheild.store 34.102.136.180, 49767, 80 GOOGLEUS United States 31->58 92 System process connects to network (likely due to code injection or exploit) 31->92 signatures14 process15 process16 38 conhost.exe 36->38         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3a3c9386c12ded47cc0ee24c6f915de9ca5744e68573638aa4c533704bcfee31/
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2021-06-02 03:23:00 UTC
AV detection:
13 of 29 (44.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hi6jhbwbfxwuptao4jgg7ek55hfforhgqvzwhcveyuzxas6p5yyq._file
Verdict:
unknown
Similar samples:
084b7a2a142edf5c3ebcd6bcafebe00a6953b36eff6ed7dafd54a490e657b1f5
Formbook
1d3e01fb6e4f61f482bf3bc2628b5141a896284973eaa50c35bdb929a5aa541b
Formbook
6d53b16faa7d57ada4a5c9a6db40d57bc992b1525f35e87dded4d9c80dc1c5d0
Formbook
88e4cafa9fe18c0b4f53f5e0d176d78bf9f81bb02328ec448fa644be018747a4
Formbook
8c8aa4a557e5c3d0d16bf6064bbe144c4e5319a8ea4897d52f6bcb7d89fc45e9
Formbook
a3bd048ef9380fada8db051e46d9ef46c8fb8d5c4780474f1667962dd682147a
Formbook
b5d8a24e97905a0333243481930777008b654c43dd04bbf995d75334183c8070
Formbook
c0a85e3d2a434a3d0fde56c52dc8bd8b2989e803e24250661762946f807a7fc2
Formbook
d7d2e1f3971983ade2d3d7728651354827c37b565eca280a72f1649bddbcdf41
Formbook
f73bd79fa45052bdee47d286e58107be584dd64d6cafb38362d494d9b388356f
Formbook
+ 20 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/210602-za2pb7vv8x/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
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/3a3c9386c12ded47cc0ee24c6f915de9ca5744e68573638aa4c533704bcfee31

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:pe_imphash
Create hunting rule
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe 3a3c9386c12ded47cc0ee24c6f915de9ca5744e68573638aa4c533704bcfee31

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/163947/

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