MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 97b6532c228002e364a4bb3ad8efb13b1b13f9bbacfc93416b7b56f371e25983. 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 4 File information Comments

SHA256 hash: 97b6532c228002e364a4bb3ad8efb13b1b13f9bbacfc93416b7b56f371e25983
SHA3-384 hash: 722916c1d4e326d32a187a95c7b1fe695f6f9331b9a26335ece426d822ea64905cc3657d6f5cc08c54b1ff0bee98021e
SHA1 hash: a90c0bd93792bdd29b1ea2b5bf967672e16e28da
MD5 hash: 98eb274e5755b5c4ed216fd19e7243ba
humanhash: butter-yankee-six-yankee
File name:PURCHASE ORDER.exe
Download: download sample
Signature Formbook
File size:538'802 bytes
First seen:2022-02-21 04:18:17 UTC
Last seen:2022-02-21 13:53:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla)
ssdeep 12288:NP7r9r/+ppppppppppppppppppppppppppppp0YFIQsS27bycvnt1oIn96bxyyYr:N1MFIXZ7bF2In9is9
Threatray 9'474 similar samples on MalwareBazaar
TLSH T17BB49DC5E98455A0DD59AB306A37CC3592237EFDA834A41D29DE3E2B3FFB2936025053
File icon (PE):PE icon
dhash icon d4c4c4d8ccd4f0cc (241 x AgentTesla, 65 x Loki, 41 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
6
# of downloads :
215
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Sending a custom TCP request
Reading critical registry keys
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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)
Performs DNS queries to domains with low reputation
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 575448 Sample: PURCHASE ORDER.exe Startdate: 21/02/2022 Architecture: WINDOWS Score: 100 36 www.ngucocloisua.online 2->36 38 www.amelntl.net 2->38 40 2 other IPs or domains 2->40 56 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->56 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 6 other signatures 2->62 12 PURCHASE ORDER.exe 19 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\Local\Temp\flgpd.exe, PE32 12->34 dropped 15 flgpd.exe 1 12->15         started        process6 signatures7 74 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->74 76 Tries to detect virtualization through RDTSC time measurements 15->76 78 Injects a PE file into a foreign processes 15->78 18 flgpd.exe 15->18         started        21 conhost.exe 15->21         started        process8 signatures9 48 Modifies the context of a thread in another process (thread injection) 18->48 50 Maps a DLL or memory area into another process 18->50 52 Sample uses process hollowing technique 18->52 54 Queues an APC in another process (thread injection) 18->54 23 explorer.exe 18->23 injected process10 dnsIp11 42 www.rws3.xyz 23->42 44 www.onlinedon.net 154.204.208.158, 49787, 80 COMING-ASABCDEGROUPCOMPANYLIMITEDHK Seychelles 23->44 46 13 other IPs or domains 23->46 64 System process connects to network (likely due to code injection or exploit) 23->64 66 Performs DNS queries to domains with low reputation 23->66 27 raserver.exe 23->27         started        signatures12 process13 signatures14 68 Modifies the context of a thread in another process (thread injection) 27->68 70 Maps a DLL or memory area into another process 27->70 72 Tries to detect virtualization through RDTSC time measurements 27->72 30 cmd.exe 1 27->30         started        process15 process16 32 conhost.exe 30->32         started       
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2022-02-21 04:19:11 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:yrcy loader rat
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
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
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Blocklisted process makes network request
Executes dropped EXE
Xloader Payload
Xloader
Unpacked files
SH256 hash:
c65a6af5fa8719686bd9fb55055ee825ec87b5e4adf7e58baa5676b45600ea7e
MD5 hash:
152b5fcf2580b07523200858789d1abc
SHA1 hash:
db90e619c454ed44bc97bd0e057d572e82c67cf7
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
05378ac62f16cda46a5488cd90e82f6b3b8c2972271fccd279ab102f2ac07632
MD5 hash:
2bfb82a2fe3c72d4e3199dd372a44966
SHA1 hash:
7cab64b2acf6606780afaec1446cd45d0cf8bd8a
SH256 hash:
97b6532c228002e364a4bb3ad8efb13b1b13f9bbacfc93416b7b56f371e25983
MD5 hash:
98eb274e5755b5c4ed216fd19e7243ba
SHA1 hash:
a90c0bd93792bdd29b1ea2b5bf967672e16e28da
Detections:
win_cannon_auto
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:dridex_halo_generated
Author:Halogen Generated Rule, Corsin Camichel
Rule name:malware_Formbook_strings
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_cannon_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
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 97b6532c228002e364a4bb3ad8efb13b1b13f9bbacfc93416b7b56f371e25983

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

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