MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4917a12fce46a55c99e102daf9b78b0a121dfad821abfe6a43d60e6dfde4c488. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments 1

SHA256 hash: 4917a12fce46a55c99e102daf9b78b0a121dfad821abfe6a43d60e6dfde4c488
SHA3-384 hash: 7f42ea8930625ede2ec55f4be18c83e9994cade30f28b299f58820b69df09119f84916781aa676dffb0b866aa1814b86
SHA1 hash: 1e77172b6474bed24831b97e4bd42828f0cce91e
MD5 hash: b0053ddc80b4aa7b07029f94c4d3f063
humanhash: october-kansas-diet-oklahoma
File name:b0053ddc80b4aa7b07029f94c4d3f063.exe
Download: download sample
Signature Formbook
File size:875'008 bytes
First seen:2021-05-11 17:11:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:YHAu7e/MGdDv4RnFBnhWqaCByHQ6tW8K3SjTmB73Z:Y0/NEnFBIqbyHQ6tTmB7Z
Threatray 5'113 similar samples on MalwareBazaar
TLSH AD150135376C6FE2E67ED77D6820004853F6F80AE722E65E7EA504DC0865F8246A2F53
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
244
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
http://cloudstroageofofficedocumenttransfer.mangospot.net/svch/s.doc
Verdict:
Malicious activity
Analysis date:
2021-05-11 12:54:09 UTC
Tags:
opendir exploit CVE-2017-11882

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a UDP request
Creating a window
Result
Verdict:
UNKNOWN
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 411309 Sample: 4si5VtPNTe.exe Startdate: 11/05/2021 Architecture: WINDOWS Score: 100 33 www.epfinances.com 2->33 35 www.clearidealsituation.info 2->35 37 4 other IPs or domains 2->37 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 6 other signatures 2->51 11 4si5VtPNTe.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\4si5VtPNTe.exe.log, ASCII 11->31 dropped 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Injects a PE file into a foreign processes 11->63 15 4si5VtPNTe.exe 11->15         started        18 4si5VtPNTe.exe 11->18         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 20 explorer.exe 15->20 injected process9 dnsIp10 39 www.peerhits.com 164.155.146.193, 49758, 80 IKGUL-26484US South Africa 20->39 41 brlnathletics.com 184.168.131.241, 49759, 80 AS-26496-GO-DADDY-COM-LLCUS United States 20->41 43 19 other IPs or domains 20->43 53 System process connects to network (likely due to code injection or exploit) 20->53 24 control.exe 20->24         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 24->55 57 Maps a DLL or memory area into another process 24->57 59 Tries to detect virtualization through RDTSC time measurements 24->59 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-05-11 15:41:13 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.drpratimakanade.com/bucw/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Web download

Formbook

Executable exe 4917a12fce46a55c99e102daf9b78b0a121dfad821abfe6a43d60e6dfde4c488

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-11 18:02:34 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0009] Anti-Behavioral Analysis::Virtual Machine Detection