MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 59c27aa1cff155341b66f050ccec3306700fdfe161f7446b17ae8e956296d0a4. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments

SHA256 hash: 59c27aa1cff155341b66f050ccec3306700fdfe161f7446b17ae8e956296d0a4
SHA3-384 hash: 9bc0205eb890a49345087004d6c10d4ef4995b4fef0fc997ee2778b4d54f3f64492861602c38095abe403b0d274f8162
SHA1 hash: a9273be35cbe0d0451a5ad288bbfa9e682231e8c
MD5 hash: 5c244c79d184132ea8c2e3ad9e1f506e
humanhash: carbon-six-wisconsin-carpet
File name:Payment_Invoice.exe
Download: download sample
Signature Formbook
File size:1'278'464 bytes
First seen:2022-04-12 05:25:57 UTC
Last seen:2022-04-12 05:38:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:qWNwTHYBdBqCebfeuXVgOnZTgUkqHfBjUk27JwuG:KTHSdBqCafeEVVZTgUkq/BIr
Threatray 14'932 similar samples on MalwareBazaar
TLSH T1ED458DAC366171DFC8A7D471DAA89CB4FA5135BB831B520BA01706ADEE4C887CF141F6
File icon (PE):PE icon
dhash icon 70ccb26969b2cc71 (35 x AgentTesla, 13 x Formbook, 2 x SnakeKeylogger)
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
4
# of downloads :
296
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Reading critical registry keys
Sending an HTTP GET request
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 607539 Sample: Payment_Invoice.exe Startdate: 12/04/2022 Architecture: WINDOWS Score: 100 31 www.yysh377.xyz 2->31 33 www.lohithapathlabs.com 2->33 35 3 other IPs or domains 2->35 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 11 other signatures 2->49 11 Payment_Invoice.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\Payment_Invoice.exe.log, ASCII 11->29 dropped 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Injects a PE file into a foreign processes 11->63 65 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->65 15 Payment_Invoice.exe 11->15         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 73 Queues an APC in another process (thread injection) 15->73 18 explorer.exe 15->18 injected process9 dnsIp10 37 www.dhwbx.com 45.39.240.200, 49798, 80 EGIHOSTINGUS United States 18->37 39 stoic-johnson-8fa98d.netlify.app 3.67.153.12, 49780, 80 AMAZON-02US United States 18->39 41 6 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 chkdsk.exe 18->22         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 22->53 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 59 Tries to detect virtualization through RDTSC time measurements 22->59 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-04-11 22:28:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
80
AV detection:
23 of 41 (56.10%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:ioxf loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Unpacked files
SH256 hash:
59789cc56003a85793bba181c0a58f2dfe052627673516ebdb955abdc448748a
MD5 hash:
779ff136c72964cdad1ec421181a06dc
SHA1 hash:
75da1e2ed82c0fc0cb5afda579ab26843468d775
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
SH256 hash:
59c27aa1cff155341b66f050ccec3306700fdfe161f7446b17ae8e956296d0a4
MD5 hash:
5c244c79d184132ea8c2e3ad9e1f506e
SHA1 hash:
a9273be35cbe0d0451a5ad288bbfa9e682231e8c
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:pe_imphash
Rule name:quakbot_halo_generated
Author:Halogen Generated Rule, Corsin Camichel
Rule name:silentbuilder_halo_generated
Author:Halogen Generated Rule, Corsin Camichel
Rule name:Skystars_Malware_Imphash
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 59c27aa1cff155341b66f050ccec3306700fdfe161f7446b17ae8e956296d0a4

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments