MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3eee37f03d307023521890718302eb2f9ba7d4ec465a1f10c7e9d408ceddc3b. 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: 5


Intelligence 5 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c3eee37f03d307023521890718302eb2f9ba7d4ec465a1f10c7e9d408ceddc3b
SHA3-384 hash: 07ab2ef766b505e8efe22851ef336d24a4da19321121372e83f4f102bd043617010e03d80b0f3ac19d5b3841b4f01d04
SHA1 hash: 652bfed4cef60a257812883130a9ecaeb52f7c4b
MD5 hash: 3c0c0ba52da81b9087b5e053f7ffb68b
humanhash: indigo-cup-maine-cold
File name:435543455434554_pdf.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:303'616 bytes
First seen:2020-06-12 08:34:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:Hu3NlBlV9qRfCGfv9d8ipJFCz/3MFz2awf+cN/efL4vLrVed:O3NbMfCGffbEv6z23+8/efL4vLrV
Threatray 5'102 similar samples on MalwareBazaar
TLSH FD54E09C339472EFC92BC9769DA45D24EB6179B7470B8307A41712ADAE0E697CF100F2
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: cofradias.altia.es
Sending IP: 176.58.12.79
From: Remei Gomez <r.gomez@hyva.com>
Subject: FACTURACION
Attachment: 435543455434554_pdf.gz (contains "435543455434554_pdf.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
86
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/10001/
Detection(s):
SecuriteInfo.com.BehavesLike.Win32.Generic.gc.931.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-06-12 08:12:46 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ypxog7yd2mdqenjbredrqmbowl43u7koyrs2d4imp2oubdhn3q5q._file
Verdict:
malicious
Similar samples:
3224b351afdfb9166bf37fde75a48e9d3212916a6584634600f90971ba3883ed
FormBook
3e98d7f59e495ddfa5140a50f70347bb4a56296ca2dcb6602f65ebb4e4a0373b
FormBook
4a6187dd467be22cbd3eab6807d368c37535c488af22442498423da8124f35fa
FormBook
5e5d88343393a5a1f98a66c8e5967023e200dcf3be81bc0a3c210396156d0fea
FormBook
5ea463243b051351c219469515fb9b39d01c5c3c4f4698bd6164e36070622d35
FormBook
688ac9fd686d48bc6fec56f27e814c48d7849f548ef14d763dd446b61140c388
FormBook
6f827b68129d30609057c2e6b36be05649fce91d6bc8ee3d3566ca5c6aba562b
FormBook
8155c967977dee334ccd8751bb30dbe3e2a134c387ac6d7e48ba5043e07441df
FormBook
85774cdd3163c5e259dafdf67b113fd69fa8f4f9ebd964ee91b099bd2f58ebfd
FormBook
9bf2e6afa0656c8129746c95784146ba85f15ecf46081644192e5bbfd5899144
FormBook
+ 5'092 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/201109-ms7t6c7pmx/
Behaviour
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
Suspicious use of UnmapMainImage
Drops file in Program Files directory
Suspicious use of SetThreadContext
Deletes itself
Reads user/profile data of web browsers
Adds policy Run key to start application
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.spatren.com/sr2/
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
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
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

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

Malspam

FormBook

gz b9257cb288b1451303f9fdd51721390f2b50fb04404e64c0ae8c34e83b5f68f7

FormBook

Executable exe c3eee37f03d307023521890718302eb2f9ba7d4ec465a1f10c7e9d408ceddc3b

(this sample)

  
Dropped by
MD5 6cb9e362193b6aa580ba98faecbb195c
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 b9257cb288b1451303f9fdd51721390f2b50fb04404e64c0ae8c34e83b5f68f7
Cape
Cape
https://www.capesandbox.com/analysis/10001/

Comments