MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2d9b5d16fcae146b34d3ed40bb6444d4b4bb497ed63e8f4d720af4d24cb5450. 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: 12


Intelligence 12 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a2d9b5d16fcae146b34d3ed40bb6444d4b4bb497ed63e8f4d720af4d24cb5450
SHA3-384 hash: 4764d8e83008f4e31ec385e04a52eabf6e9d97ee62f3a54255edf75215096e03938d2c80be199f91793a42de13b062bc
SHA1 hash: a4f6a236211877a1643e4e23b526a92783e95ec5
MD5 hash: 85cae42607ba1f967e4dbc6eb164b10c
humanhash: butter-nuts-pluto-zebra
File name:Confirm.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:838'656 bytes
First seen:2020-12-29 07:59:30 UTC
Last seen:2020-12-29 10:12:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:mMz2z/zCzUN//E03c99/nkK85YrJIcUBSS5PiMwVPXvWEQ9CpRXE7DSO:mB2W0J0PipV24R0
Threatray 4'437 similar samples on MalwareBazaar
TLSH 9C05BF1963501B83F43C2B79C5A92E0543F0687DF6A2EBF8BDA5718B99E1B814533237
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: mwsmtp03oc.mail2world.com
Sending IP: 74.202.142.130
From: Jane Liu<huynh.mai@mikazuki.com.vn>
Reply-To: <debora.pacini14@gmail.com>
Subject: Re: Bookings
Attachment: Confirm.rar (contains "Confirm.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
200
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Confirm.exe
Verdict:
Malicious activity
Analysis date:
2020-12-29 08:05:49 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/9c55c338-85ff-424e-bf6a-186ba87e38eb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/109728/
Detection(s):
SecuriteInfo.com.Variant.Barys.13746.23636.19300.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Result
Verdict:
MALICIOUS
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/571288
Signature
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 334706 Sample: Confirm.exe Startdate: 29/12/2020 Architecture: WINDOWS Score: 80 12 Malicious sample detected (through community Yara rule) 2->12 14 Multi AV Scanner detection for submitted file 2->14 16 Yara detected AntiVM_3 2->16 18 3 other signatures 2->18 6 Confirm.exe 2 2->6         started        process3 process4 8 Confirm.exe 6->8         started        10 Confirm.exe 6->10         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a2d9b5d16fcae146b34d3ed40bb6444d4b4bb497ed63e8f4d720af4d24cb5450/
Threat name:
ByteCode-MSIL.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2020-12-29 00:53:54 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ulm3lulpzlqunm2nh3kaxnsejvfuxnex5vr6r5gxecxu2jglkria._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
24a234c5f80a54172dd68022bc17dfaadb008e6c90dbac03991064860f20ea82
Formbook
50cb4a77f2df96f675c80dec26c475f843954677b7a44aefc2e4bfa313a4e63d
Formbook
598bcdbe4c3e21a17a48d44dc03640f90643d1a03549ec429c7f96fd48e6a7ea
Formbook
616c28fcce50820b53f2e7489697ceec0526c0e6005c25c4a2f312b2cc8822a3
Formbook
6c38cd22154fec33d60c57f97e3a4d09d481f30422c2d0b1a6a65ea65639dd69
Formbook
9ed73237c4de3ed96e8d90f4d94dcbb46bf7c947961e40601852b8bad6c03f52
Formbook
b1e02307e81e96b22e56e5ab30d8bbed318da83a077952449a2f832916d7c8d1
Formbook
d168997744867bbce4da90506b2182f4d015899bcddfd3924f234e739b9e7866
Formbook
d97aa63a43e409e490adc5b21a08313841565a76215278c37bcb411828a0a822
Formbook
f4674817122efc3526346a4de3f374c778b48d19f0d84bb13dd4199b0868357c
Formbook
+ 4'427 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/201229-wt7kyym432/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.deuxus.com/t052/
Unpacked files
SH256 hash:
a2d9b5d16fcae146b34d3ed40bb6444d4b4bb497ed63e8f4d720af4d24cb5450
MD5 hash:
85cae42607ba1f967e4dbc6eb164b10c
SHA1 hash:
a4f6a236211877a1643e4e23b526a92783e95ec5
Link:
https://www.unpac.me/results/8e4d3f54-09a9-4fd2-9e79-a01971ff4491/
SH256 hash:
44106a7753790a12c522849b3f7da238337bd0342e5664021e25f79b2705ae9a
MD5 hash:
d43e8dcc8f8b23c144f820eaa9bdbee4
SHA1 hash:
41faa61eb543ac1386e59ef1e3c485a19458ff68
Link:
https://www.unpac.me/results/8e4d3f54-09a9-4fd2-9e79-a01971ff4491/
SH256 hash:
63fcb18b3c090ccded9f351aae299a1835e59a01a9f0c9cb734de063290835cf
MD5 hash:
6ecff6ac375707838105f312161ea111
SHA1 hash:
5d5bc1240f41ef607e120d8f3db60ef5a07d3a90
Link:
https://www.unpac.me/results/8e4d3f54-09a9-4fd2-9e79-a01971ff4491/
SH256 hash:
3f94f64ccfb9f9c001895e544fa0cd9f131e2b2a98ee8a631afa379e3468650f
MD5 hash:
622c09a8b783861529d8bbc7e42770b7
SHA1 hash:
d6979e8ea81b6e389a2d0cdcda48833b8c2372d6
Link:
https://www.unpac.me/results/8e4d3f54-09a9-4fd2-9e79-a01971ff4491/
SH256 hash:
9231183674f234096d474027446c1803138f7b55d2e5fd616bd0f1cb12fecd37
MD5 hash:
1e95cc35de4a82e464f91fa77495d826
SHA1 hash:
9d48a0c66137f0e0575b80cff77a21d813acdb35
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/8e4d3f54-09a9-4fd2-9e79-a01971ff4491/
Parent samples :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 note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.85
Link:
https://yomi.yoroi.company/submissions/a2d9b5d16fcae146b34d3ed40bb6444d4b4bb497ed63e8f4d720af4d24cb5450

File information

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

Malspam

Formbook

rar e416ec8575a6eb6029885b8e9eefca6f76216094dd36b2913238192ea7f5a35a

Formbook

Executable exe a2d9b5d16fcae146b34d3ed40bb6444d4b4bb497ed63e8f4d720af4d24cb5450

(this sample)

  
Dropped by
MD5 512281481a6e9ca145421614ec7d3114
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 e416ec8575a6eb6029885b8e9eefca6f76216094dd36b2913238192ea7f5a35a
Cape
Cape
https://www.capesandbox.com/analysis/109728/

Comments