MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac8abd21ec11d62b86a0afe3c1ef2b250d4439cde34f46529968a77eb8bc0800. 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 4 File information Comments

SHA256 hash: ac8abd21ec11d62b86a0afe3c1ef2b250d4439cde34f46529968a77eb8bc0800
SHA3-384 hash: 5e64f8589b88dffe7be9d81c783acb8fc8ca360328517cacff5e2a88146e2bf6c8161446860610bbdec5a9af9aaf79ef
SHA1 hash: 1e97177e89421a41889ab70affbc65897638074b
MD5 hash: 8f9b983144d03012f54516466114da9b
humanhash: robert-florida-angel-ceiling
File name:OUTSTANDING PAYMENT REMINDER.exe
Download: download sample
Signature Formbook
File size:239'793 bytes
First seen:2021-05-28 08:05:58 UTC
Last seen:2021-06-02 20:55:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:cQq2U+EzeZ4VKF+/qpJxaaUBq+n63aKBd7dY8TcUOUD1cf:PU+Ezb8o/qXxrHVndFTci1cf
Threatray 5'449 similar samples on MalwareBazaar
TLSH 9B34122D75C710FFC4B3167178F7A7B1DAF6A7859621360B17202FBA29A56828C0DBC4
Reporter GovCERT_CH
Tags:FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
126
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
OUTSTANDING PAYMENT REMINDER.exe
Verdict:
Malicious activity
Analysis date:
2021-05-28 08:12:28 UTC
Tags:
installer trojan formbook stealer

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

Behaviour
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Sending a UDP request
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser 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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 submitted file
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 426109 Sample: OUTSTANDING PAYMENT REMINDER.exe Startdate: 28/05/2021 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 8 other signatures 2->42 10 OUTSTANDING PAYMENT REMINDER.exe 20 2->10         started        process3 file4 28 C:\Users\user\AppData\Local\...\System.dll, PE32 10->28 dropped 52 Maps a DLL or memory area into another process 10->52 14 OUTSTANDING PAYMENT REMINDER.exe 10->14         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.poacolors.com 213.186.33.5, 49744, 80 OVHFR France 17->30 32 www.e1536.com 204.11.56.48, 49734, 80 CONFLUENCE-NETWORK-INCVG Virgin Islands (BRITISH) 17->32 34 4 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 cscript.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2021-05-27 02:39:14 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.moneyhuntercom.info/ngvm/
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:Formbook
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_formbook_g0
Author:Slavo Greminger, SWITCH-CERT

File information


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

Malspam

Formbook

Executable exe ac8abd21ec11d62b86a0afe3c1ef2b250d4439cde34f46529968a77eb8bc0800

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments