MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c2a7767b9323fd3630a56a3fb09a7884bd7dfb0f7146d5caafff472205e1ebdc. 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: c2a7767b9323fd3630a56a3fb09a7884bd7dfb0f7146d5caafff472205e1ebdc
SHA3-384 hash: 929f1d82008e632b62db6fb9eeffed6e9790798c416bf98ddaa59720a54c71e660460c967d94763cab4736352675edf2
SHA1 hash: fd1f06a502d374711697015cc897fdb28e402e16
MD5 hash: 27816f5bbff9bb6d4cc2e1be225a435b
humanhash: beer-black-burger-undress
File name:PO LS632911DX.exe
Download: download sample
Signature Formbook
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File size:842'752 bytes
First seen:2021-07-26 11:37:29 UTC
Last seen:2021-07-26 12:44:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:cTnbyyPuTtU9buOyHpBvygTUxiJKSflB88J7AtowemcjL8DP:crbyyWJpBvygA8Uil7ktUjcP
Threatray 6'414 similar samples on MalwareBazaar
TLSH T188054A75320DBE5AD1320A328B4AE59703E1DC1F2261E2DF249972DD2C73B254EBE51B
dhash icon 78f0f0d4dcc8c8dc (3 x Formbook, 3 x AgentTesla, 3 x AsyncRAT)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
119
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO LS632911DX.exe
Verdict:
Malicious activity
Analysis date:
2021-07-26 11:44:08 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/8abee3e3-4ecb-46ee-a269-43160f98c85f

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/174102/
Detection(s):
SecuriteInfo.com.W32.MSIL_Kryptik.DSR.genEldorado.6830.20573.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
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
Setting browser functions hooks
DNS request
Connection attempt
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1044ae40-27ad-4977-b5ee-fd6a919e23b1
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/821729
Signature
.NET source code contains very large array initializations
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 454141 Sample: PO LS632911DX.exe Startdate: 26/07/2021 Architecture: WINDOWS Score: 100 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 7 other signatures 2->49 10 PO LS632911DX.exe 15 3 2->10         started        process3 dnsIp4 41 www.google.com 142.250.185.196, 443, 49715 GOOGLEUS United States 10->41 33 C:\Users\user\...\PO LS632911DX.exe.log, ASCII 10->33 dropped 59 Hides that the sample has been downloaded from the Internet (zone.identifier) 10->59 61 Injects a PE file into a foreign processes 10->61 15 PO LS632911DX.exe 10->15         started        file5 signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.guardiadeorixa.com 156.238.91.182, 49733, 80 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 18->35 37 tipsyalligator.com 184.168.131.241, 49734, 80 AS-26496-GO-DADDY-COM-LLCUS United States 18->37 39 3 other IPs or domains 18->39 51 System process connects to network (likely due to code injection or exploit) 18->51 22 msiexec.exe 18->22         started        25 autofmt.exe 18->25         started        27 autochk.exe 18->27         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 29 cmd.exe 1 22->29         started        process14 process15 31 conhost.exe 29->31         started       
Gathering data
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-07-26 11:38:05 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yktxm64tep6tmmffni73bgtyqs6x36ypofdnlsvp75dsebpb5poa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0482660453d954673e8737d1b72241f69344fddc7ad4288e94f544cc2c6c5130
Formbook
3612932b02e0e97ec1ddac955833b9e572ca1c2d93fdc12c47e4ac6021459bc9
Formbook
54469ace58ddcfdd6d834574d87003857b0cda05e27a0b8e31cb0b58e6ca105d
Formbook
7d46e9015525b4cc3c23cd864847208ec36bad8ddfadb56b672d8c0acbfeae6a
Formbook
ee8c208f53919c701500c2383d7f2fc28ace3493a4f4c354bfedae9cffe6950f
Formbook
f2dbb6d22033306507ed1ed49781edaa558374b79ac871276cdb33b343c8f7bc
Formbook
fe490c4509df78fb7305493edacde35bb3476ae8447e4104399220621a4db8dd
Formbook
+ 6'404 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook agilenet rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/210726-8r5m975kpx/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Deletes itself
Obfuscated with Agile.Net obfuscator
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.survivai.com/bsdd/
Unpacked files
SH256 hash:
c2a7767b9323fd3630a56a3fb09a7884bd7dfb0f7146d5caafff472205e1ebdc
MD5 hash:
27816f5bbff9bb6d4cc2e1be225a435b
SHA1 hash:
fd1f06a502d374711697015cc897fdb28e402e16
Link:
https://www.unpac.me/results/eedef8e5-57a9-4188-8894-28c4540dd2c7/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/c2a7767b9323fd3630a56a3fb09a7884bd7dfb0f7146d5caafff472205e1ebdc

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe c2a7767b9323fd3630a56a3fb09a7884bd7dfb0f7146d5caafff472205e1ebdc

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/174102/

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