MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2cccc56f00e67c1f5a329b4d4815f736f7c866cc2b50e590341ac2e5cd0a85be. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2cccc56f00e67c1f5a329b4d4815f736f7c866cc2b50e590341ac2e5cd0a85be
SHA3-384 hash: ce0cf5f2e8fdd0bb9142f9d324ff8aee0518962afee96e27cc53b26e8984af7cb1468f90c055922b9dacc8ba639f4197
SHA1 hash: c5aa419d8d5e9ff5b7bab305d59c044e3c49a47b
MD5 hash: 596b08cab4dec9f4c91112410b811c22
humanhash: south-carpet-nine-william
File name:630377.xls .scr
Download: download sample
Signature Formbook
Create hunting rule
File size:547'840 bytes
First seen:2020-08-13 12:06:52 UTC
Last seen:2020-08-13 13:22:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:DS1FFkBGs5bc5tHBonRQ11ORmIiZwFQ+nMRMa0him4Rt+:DS1zkkNtheQGmth4MhRc
Threatray 2'309 similar samples on MalwareBazaar
TLSH 5FC419F6384F8521C1A63CB0DC24DAC57F3C6B10F9465629F69A23F83EE126A77094D9
Reporter abuse_ch
Tags:FormBook scr


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: intek-hamburg.de
Sending IP: 45.143.223.111
From: Jing Lebrocher<s.bozkurt@intek-hamburg.de>
Subject: NEW ORDER
Attachment: NEW ORDER.img (contains "630377.xls .scr")

Intelligence

File Origin
# of uploads :
2
# of downloads :
87
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/45166/
Detection(s):
SecuriteInfo.com.Formbook.30492.24865.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Sending a UDP request
Creating a file
Running batch commands
Launching a process
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/426138
Signature
Allocates memory in foreign processes
Creates an autostart registry key pointing to binary in C:\Windows
Drops PE files to the user root directory
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 265720 Sample: .scr Startdate: 14/08/2020 Architecture: WINDOWS Score: 80 39 Malicious sample detected (through community Yara rule) 2->39 41 Yara detected FormBook 2->41 43 Drops PE files to the user root directory 2->43 45 Tries to detect virtualization through RDTSC time measurements 2->45 8        .exe 9 2->8         started        11 pcalua.exe 1 2->11         started        13 pcalua.exe 1 1 2->13         started        process3 file4 31 C:\Users\user\mbdx.exe, PE32 8->31 dropped 33 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 8->33 dropped 35 C:\Users\user\mbdx.exe:Zone.Identifier, ASCII 8->35 dropped 37 C:\Users\user\AppData\Local\Temp\...\l.dll, PE32 8->37 dropped 15 mbdx.exe 2 8->15         started        18 cmd.exe 1 8->18         started        20 mbdx.exe 3 11->20         started        process5 signatures6 49 Writes to foreign memory regions 15->49 51 Allocates memory in foreign processes 15->51 53 Injects a PE file into a foreign processes 15->53 22 AddInProcess32.exe 15->22         started        24 reg.exe 1 1 18->24         started        27 conhost.exe 18->27         started        55 Tries to detect virtualization through RDTSC time measurements 20->55 process7 signatures8 29 WerFault.exe 23 9 22->29         started        47 Creates an autostart registry key pointing to binary in C:\Windows 24->47 process9
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2cccc56f00e67c1f5a329b4d4815f736f7c866cc2b50e590341ac2e5cd0a85be/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-13 12:08:11 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ftgmk3ya4z6b6wrstnguqfpxg334qzwmfniolebudlboltikqw7a._file
Verdict:
malicious
Similar samples:
1a74c0f00eaafc71570dbbbedb04005c9ffa726be5d25a9662b084fe6cf330a0
Formbook
354edf67a7ef4bce7dc3b2c20641a5a84407d26b880b21296150aa141dc3089d
Formbook
630667a466b8fa4783cd9921551834f41a9e3a40712cda832dc2faf61503c00f
Formbook
6f8b5cad56d107434291b260c5483479d0ac1d02498d5bfad7468a02dc7fc19d
Formbook
834d1c44beb1b8c469300ca6378aa0b1283775867babb3d92fd0dae15ddd9dc7
Formbook
885179565290381c8e8e883f1e4c776507c1ddd3bfa8902f432ea31fbf01c683
Formbook
8d022dab121f77e8bc72f928612aa7d06f08f9e0726f509f28a4874f7b4cfe50
Formbook
b0c083472dee81acc9ce7dc31bd93bd358d15387dc797aef9ce4ff1f6dd8689c
Formbook
d44272fe83f10383b50e8268ffe5f7f70e1c2b355363ccde038172f6a9eb5479
Formbook
fbe07dca7476dba15e9dd639c2b5a71c6bbdf21b0f50ee1fde6aa5bc13e19243
Formbook
+ 2'299 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
agilenet rat persistence trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/200813-me4yqsghtx/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.magentos2.info/rcgc/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2cccc56f00e67c1f5a329b4d4815f736f7c866cc2b50e590341ac2e5cd0a85be

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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Malspam

Formbook

img a5e127b40d8ee4de136544f90b47723aee93def5d9e292d9976ff792052f717d

Formbook

Executable exe 2cccc56f00e67c1f5a329b4d4815f736f7c866cc2b50e590341ac2e5cd0a85be

(this sample)

  
Dropped by
MD5 80d84e12370330c4b1d40823dc1704ae
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/45166/
  
Dropped by
SHA256 a5e127b40d8ee4de136544f90b47723aee93def5d9e292d9976ff792052f717d

Comments