MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3324b658bb54b1934613b8fdecb2f12f7aabb815a4ca42b48dc7bdf4837026c9. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3324b658bb54b1934613b8fdecb2f12f7aabb815a4ca42b48dc7bdf4837026c9
SHA3-384 hash: 3eecd07e74b903e503696694f76dd3f6ba7df68bec2525b37fa58830efe275dc8a9743916112737ce2b8b16bdf1c515b
SHA1 hash: a603ebb8ce8ce4394a5b85002ec724889e65d2fa
MD5 hash: 6576835f02fd3e5ec9780d5d23126d9c
humanhash: don-mockingbird-two-carbon
File name:RR300912398.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:1'117'184 bytes
First seen:2020-10-26 15:14:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:E45JYrRaMRat9ltPDeRVJ0pkZ2qKpUUbUUphOKS8:
TLSH B7358C3D6E8825A35177E276A4F90687FEE8618673781C4F02C32B486D4AF163E9734D
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: srv20009.hosting.claranet.es
Sending IP: 92.54.18.66
From: commercial <commercial@polycuisines.com>
Reply-To: commercial <info@asguler.com.tr>
Subject: demande offre de prix
Attachment: PRIX4958.zip (contains "RR300912398.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79262/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
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.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/512074
Signature
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Creates an undocumented autostart registry key
Detected FormBook malware
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)
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
Sigma detected: Steal Google chrome login data
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 305233 Sample: RR300912398.exe Startdate: 26/10/2020 Architecture: WINDOWS Score: 100 40 www.bigrainbow.house 2->40 42 parkingpage.namecheap.com 2->42 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus / Scanner detection for submitted sample 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 5 other signatures 2->52 11 RR300912398.exe 1 2->11         started        signatures3 process4 signatures5 64 Tries to detect virtualization through RDTSC time measurements 11->64 66 Injects a PE file into a foreign processes 11->66 14 RR300912398.exe 11->14         started        process6 signatures7 68 Modifies the context of a thread in another process (thread injection) 14->68 70 Maps a DLL or memory area into another process 14->70 72 Sample uses process hollowing technique 14->72 74 Queues an APC in another process (thread injection) 14->74 17 explorer.exe 14->17 injected process8 dnsIp9 36 www.dialmeup.com 202.14.6.102, 49746, 80 HENGTONG-IDC-LLCUS Hong Kong 17->36 38 www.best20photapps.com 17->38 44 System process connects to network (likely due to code injection or exploit) 17->44 21 chkdsk.exe 1 18 17->21         started        signatures10 process11 signatures12 54 Detected FormBook malware 21->54 56 Creates an undocumented autostart registry key 21->56 58 Tries to steal Mail credentials (via file access) 21->58 60 4 other signatures 21->60 24 cmd.exe 2 21->24         started        28 cmd.exe 1 21->28         started        process13 file14 34 C:\Users\user\AppData\Local\Temp\DB1, SQLite 24->34 dropped 62 Tries to harvest and steal browser information (history, passwords, etc) 24->62 30 conhost.exe 24->30         started        32 conhost.exe 28->32         started        signatures15 process16
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3324b658bb54b1934613b8fdecb2f12f7aabb815a4ca42b48dc7bdf4837026c9/
Threat name:
ByteCode-MSIL.Trojan.Shelma
Create hunting rule
Status:
Malicious
First seen:
2020-10-26 12:57:15 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gmslmwf3ksyzgrqtxd66zmxrf55kxoavutfefneny667ja3qe3eq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook persistence
Link:
https://tria.ge/reports/201026-2fxfqb4b36/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Modifies Internet Explorer settings
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Reads user/profile data of web browsers
Formbook Payload
Formbook
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: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
Rule name:win_nymaim_g0
Create hunting rule
Author:mak, msm, CERT.pl

File information

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

Malspam

FormBook

zip 50df44784b447c6d531fac4b81bd44359e39ce41cceefc5228003333d705683b

FormBook

Executable exe 3324b658bb54b1934613b8fdecb2f12f7aabb815a4ca42b48dc7bdf4837026c9

(this sample)

  
Dropped by
MD5 2d28e0f0044bb9651edc3df845831a58
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 50df44784b447c6d531fac4b81bd44359e39ce41cceefc5228003333d705683b
Cape
Cape
https://www.capesandbox.com/analysis/79262/

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