MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8fe6d7fa624e8e96f71d3ff6375a012b44b51f06179feb7cef8c33fd6d38570. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8fe6d7fa624e8e96f71d3ff6375a012b44b51f06179feb7cef8c33fd6d38570
SHA3-384 hash: 53e29f938687d7725fb6a91ca19ff9fa31d18c91931c4a7d8b189e2f5f98485b1bbb4deb12bd07245923c4992286c842
SHA1 hash: a2bee1c142d50ef4f821e30eae5a1a30efa8f009
MD5 hash: 095d3e149a73c5daa7da04428ee3d561
humanhash: sink-music-avocado-edward
File name:PO#652.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:353'280 bytes
First seen:2021-02-18 07:40:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 6144:vv0M3Nkx/86kMUoM4fonNsK1UQR24dkyc1QCPBvHgy8DPlJB7F9GzypL1yO42s2b:vcM3H6kM7gnRBR24yRPBPgy8DNFwe7ya
Threatray 3'805 similar samples on MalwareBazaar
TLSH C374BE9CF994768ECC2BDC72CEB82D64AB9028B6737AE207B11315D9591C497CF1D0B2
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: curlze.site
Sending IP: 185.31.160.145
From: OVOL Sdn Bhd <A.zaki@aminternational.ae>
Subject: Purchased Order - victim-email - PO#652
Attachment: PO652.xls.z (contains "PO#652.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
103
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/117691/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Launching the process to change network settings
Sending a UDP request
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
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/611203
Signature
Allocates memory in foreign processes
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
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Svchost Process
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 virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 354619 Sample: PO#652.exe Startdate: 18/02/2021 Architecture: WINDOWS Score: 100 31 www.stagepins.com 2->31 33 www.rawvegangoods.com 2->33 35 3 other IPs or domains 2->35 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 4 other signatures 2->51 11 PO#652.exe 1 2->11         started        signatures3 process4 signatures5 63 Writes to foreign memory regions 11->63 65 Allocates memory in foreign processes 11->65 67 Injects a PE file into a foreign processes 11->67 14 svchost.exe 11->14         started        17 svchost.exe 11->17         started        process6 signatures7 69 Modifies the context of a thread in another process (thread injection) 14->69 71 Maps a DLL or memory area into another process 14->71 73 Sample uses process hollowing technique 14->73 75 Queues an APC in another process (thread injection) 14->75 19 explorer.exe 14->19 injected 77 Tries to detect virtualization through RDTSC time measurements 17->77 process8 dnsIp9 37 www.straitskids.com 195.149.84.101, 49727, 80 WORLD-NEWSGR United Kingdom 19->37 39 sunsfactory.net 5.79.87.207, 49743, 80 LEASEWEB-NL-AMS-01NetherlandsNL Netherlands 19->39 41 13 other IPs or domains 19->41 53 System process connects to network (likely due to code injection or exploit) 19->53 23 wscript.exe 12 19->23         started        signatures10 process11 dnsIp12 43 www.856379738.xyz 23->43 55 System process connects to network (likely due to code injection or exploit) 23->55 57 Modifies the context of a thread in another process (thread injection) 23->57 59 Maps a DLL or memory area into another process 23->59 61 Tries to detect virtualization through RDTSC time measurements 23->61 27 cmd.exe 1 23->27         started        signatures13 process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a8fe6d7fa624e8e96f71d3ff6375a012b44b51f06179feb7cef8c33fd6d38570/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-02-18 07:41:08 UTC
AV detection:
12 of 47 (25.53%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vd7g275getuos33r2p7wg5nack2ewupqmf475n6o7dbt7vwtqvya._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
+ 3'795 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Link:
https://tria.ge/reports/210218-rfzzmvyx8j/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.sunsfactory.net/m3de/
Unpacked files
SH256 hash:
a8fe6d7fa624e8e96f71d3ff6375a012b44b51f06179feb7cef8c33fd6d38570
MD5 hash:
095d3e149a73c5daa7da04428ee3d561
SHA1 hash:
a2bee1c142d50ef4f821e30eae5a1a30efa8f009
Link:
https://www.unpac.me/results/5032fbd6-8ef7-4b91-a6c1-cd154fba9ae4/
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/a8fe6d7fa624e8e96f71d3ff6375a012b44b51f06179feb7cef8c33fd6d38570

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_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

z 78dedc26287fad6627a271a8734ad7db7f590ffd8e6afdd4a760cbdc4f50592d

Formbook

Executable exe a8fe6d7fa624e8e96f71d3ff6375a012b44b51f06179feb7cef8c33fd6d38570

(this sample)

  
Dropped by
MD5 bcb92747983590699d39e4896dd8c4c0
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/117691/
  
Dropped by
SHA256 78dedc26287fad6627a271a8734ad7db7f590ffd8e6afdd4a760cbdc4f50592d

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