MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 73bd80a020bfe9f24dcaff57cd3781d85f20f66ab8d6398263b6a94914ce6319. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments

SHA256 hash: 73bd80a020bfe9f24dcaff57cd3781d85f20f66ab8d6398263b6a94914ce6319
SHA3-384 hash: 0a0721dae0f7a210b40c9cbc47ab24004b6038c8d2fcd1e394e75ac83d45d4dd5a231315322c9e494f23afffc2be8be3
SHA1 hash: dd3d561592e4eae9f9c2463e2dde10ba091ce8f0
MD5 hash: c389632afc8542c6af913c1f054cfd9d
humanhash: jig-mirror-early-muppet
File name:Purchase Bill.exe
Download: download sample
Signature Formbook
File size:287'363 bytes
First seen:2021-11-02 08:33:34 UTC
Last seen:2021-11-03 08:41:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:wBlL/c7M25DOeCX5NSuBMldEGvxfc4SU9kQKn5dgCXKWV:Ce7MoDOeVuKliGvZS8k5OCXx
Threatray 11'213 similar samples on MalwareBazaar
TLSH T1B954129213E4D8E3D0F207F116BEA72ED6A1D91C0212AAAB43A16DFFA52B7D1150714F
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
116
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase Bill.exe
Verdict:
Malicious activity
Analysis date:
2021-11-02 08:37:51 UTC
Tags:
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
Unauthorized injection to a recently created process
Launching the process to change network settings
Launching cmd.exe command interpreter
DNS request
Connection attempt
Sending an HTTP GET request
Possible injection to a system process
Unauthorized injection to a system process
Deleting of the original file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed
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
Antivirus detection for URL or domain
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 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
Self deletion via cmd delete
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
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 513512 Sample: Purchase Bill.exe Startdate: 02/11/2021 Architecture: WINDOWS Score: 100 32 www.kouponati.com 2->32 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 7 other signatures 2->48 11 Purchase Bill.exe 17 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\Local\...\muult.dll, PE32 11->30 dropped 60 Injects a PE file into a foreign processes 11->60 15 Purchase Bill.exe 11->15         started        signatures6 process7 signatures8 62 Modifies the context of a thread in another process (thread injection) 15->62 64 Maps a DLL or memory area into another process 15->64 66 Sample uses process hollowing technique 15->66 68 Queues an APC in another process (thread injection) 15->68 18 explorer.exe 15->18 injected process9 dnsIp10 34 bullaestetica.com 192.185.129.44, 49855, 80 UNIFIEDLAYER-AS-1US United States 18->34 36 www.lpyan.com 154.80.133.121, 49854, 80 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 18->36 38 4 other IPs or domains 18->38 50 System process connects to network (likely due to code injection or exploit) 18->50 22 wlanext.exe 12 18->22         started        signatures11 process12 dnsIp13 40 www.jlcmdc.com 22->40 52 Self deletion via cmd delete 22->52 54 Modifies the context of a thread in another process (thread injection) 22->54 56 Maps a DLL or memory area into another process 22->56 58 Tries to detect virtualization through RDTSC time measurements 22->58 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Threat name:
Win32.Spyware.Noon
Status:
Malicious
First seen:
2021-11-02 06:46:30 UTC
AV detection:
14 of 44 (31.82%)
Threat level:
  2/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:s8n8 loader rat suricata
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
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.kleanikal.com/s8n8/
Unpacked files
SH256 hash:
73bd80a020bfe9f24dcaff57cd3781d85f20f66ab8d6398263b6a94914ce6319
MD5 hash:
c389632afc8542c6af913c1f054cfd9d
SHA1 hash:
dd3d561592e4eae9f9c2463e2dde10ba091ce8f0
Malware family:
XLoader
Verdict:
Malicious
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:Detects win.formbook.

File information


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

Malspam

Formbook

Executable exe 73bd80a020bfe9f24dcaff57cd3781d85f20f66ab8d6398263b6a94914ce6319

(this sample)

  
Delivery method
Distributed via e-mail attachment

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