MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e3a859708d3e54210dbd7aaf0a2a78e1a11e8e2b3dcd358f91c3aa5091b94bf0. 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: 9


Intelligence 9 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e3a859708d3e54210dbd7aaf0a2a78e1a11e8e2b3dcd358f91c3aa5091b94bf0
SHA3-384 hash: 9f3d27e6af8cd843adc8d937daaed7a74b818916c1d8e7e3fe9b175e677cb4bf979635c71e4000ed1169b27ac0f86da5
SHA1 hash: 821bd32f666f778e22c395def5d7bda97a4247f5
MD5 hash: 5d3d308f1c8fe82e0184f40d5ff80d4b
humanhash: one-tennis-friend-eight
File name:Purchase Order.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:495'616 bytes
First seen:2020-07-29 12:44:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:PhS43DO9vGR91Od5NJHbAFw1nNWT/JMMA905y8:XbwdX9YY4LP
Threatray 5'087 similar samples on MalwareBazaar
TLSH 31B429C227817B92E9C2FC72AB5144172327DCF8A3861B7740D8D7512CD0AE9FE5EA52
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: tiep23.localdomain
Sending IP: 45.127.62.178
From: Mr. Wales <gislason@peggyjhuling.cf>
Subject: Purchase Order
Attachment: Purchase Order.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/34887/
Detection(s):
Win.Packed.Zusy-7171717-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Creating a file
Creating a window
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/402553
Signature
Allocates memory in foreign processes
Detected unpacking (changes PE section rights)
Executable has a suspicious name (potential lure to open the executable)
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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: 253642 Sample: Purchase Order.exe Startdate: 29/07/2020 Architecture: WINDOWS Score: 100 34 g.msn.com 2->34 36 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->36 44 Malicious sample detected (through community Yara rule) 2->44 46 Yara detected FormBook 2->46 48 Executable has a suspicious name (potential lure to open the executable) 2->48 50 3 other signatures 2->50 11 Purchase Order.exe 3 6 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\Local\Temp\WinSec.exe, PE32 11->30 dropped 32 C:\Users\user\...\Purchase Order.exe.log, ASCII 11->32 dropped 58 Writes to foreign memory regions 11->58 60 Allocates memory in foreign processes 11->60 62 Sample uses process hollowing technique 11->62 64 Injects a PE file into a foreign processes 11->64 15 WinSec.exe 11->15         started        18 notepad.exe 11->18         started        signatures6 process7 signatures8 66 Detected unpacking (changes PE section rights) 15->66 68 Modifies the context of a thread in another process (thread injection) 15->68 70 Maps a DLL or memory area into another process 15->70 72 3 other signatures 15->72 20 explorer.exe 15->20 injected process9 dnsIp10 38 www.thecookietablebakery.com 20->38 40 www.lsee.ltd 20->40 42 2 other IPs or domains 20->42 23 explorer.exe 20->23         started        process11 signatures12 52 Modifies the context of a thread in another process (thread injection) 23->52 54 Maps a DLL or memory area into another process 23->54 56 Tries to detect virtualization through RDTSC time measurements 23->56 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e3a859708d3e54210dbd7aaf0a2a78e1a11e8e2b3dcd358f91c3aa5091b94bf0/
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2020-07-29 12:46:06 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4oufs4enhzkccdn5pkxqukty4gqr5drlhxgtld4ryovfbenzjpya._file
Verdict:
malicious
Label(s):
netwirerc
Create hunting rule
Similar samples:
141db63f511b843acf5d8a10f095333482850ed727da867bf39b83694b963ae6
FormBook
2a267254b993ac07447ffa6e2085d2e93f6dafa334c53f65d109d92082d1c350
FormBook
399b70d269ec0e84b66d7de2183866331bff3dd2eff8f32b851927d5944c963a
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49a63eb1c6fd5d4b22396bb8a8397c3bf124c3f94d104bc2a7a304f4457b4526
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590fde182a154cd89b15d88546d60351b9fecb51e04fbbf4affd8d49a618bd23
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6612e640d15ed26414fc5c288b9bb7050db90517febb11d4b5145fb8d84441b9
FormBook
6678b91ffc7bf3cd0b4624d6f8a3a500d666fd023e43d79727ddd29bd5a7ac19
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83ef26bdf4b6b513417a97c8997aa2152bc0fb0f0af9d0b30cf6a46d4959ce38
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8c2d2663a4c8cf961eb6e47123054f1dd40a7c23bf663762b0f0fc827b6b44f7
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dbdfc4a9100fa08d0bb6ca2879febbc5e0db4eca85168dfefb526b584976efaf
FormBook
+ 5'077 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
evasion trojan persistence spyware stealer family:formbook
Link:
https://tria.ge/reports/200729-syexytb5ss/
Behaviour
Opens file in notepad (likely ransom note)
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of AdjustPrivilegeToken
Drops file in Program Files directory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Avkill
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/e3a859708d3e54210dbd7aaf0a2a78e1a11e8e2b3dcd358f91c3aa5091b94bf0

File information

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

Malspam

FormBook

Executable exe e3a859708d3e54210dbd7aaf0a2a78e1a11e8e2b3dcd358f91c3aa5091b94bf0

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/34887/

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