MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fdbca30c6db5b5bc5e1a954ce387deec23d7b77ff249ec916bcabb0a5faeb783. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fdbca30c6db5b5bc5e1a954ce387deec23d7b77ff249ec916bcabb0a5faeb783
SHA3-384 hash: 658cad78aeca342903e5597a8e44434b96a6f57bd5b25414ff9cb8fd019bea4357182f5484f9708ff79e1bc7aa05138b
SHA1 hash: 26d1a46bb29352bc0af5c8ac74b66ed25977bcca
MD5 hash: bbc10e39f7c1328e99abc36d3ce78c52
humanhash: enemy-snake-wyoming-stream
File name:81509562.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:382'464 bytes
First seen:2022-01-24 03:17:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:8bebbtyEO56LnkkFVEXE3zdrZn3Lupdh7cRbjtXFi/nJZ7ZSBOCBTHt16HfUavih:8bebbk76jkkF33ZtqibjyPD8BtBK8h
Threatray 9'521 similar samples on MalwareBazaar
TLSH T1AE840237E78D117FD68D1ABE6044165983B480781E63F7C62EAEA0A7274B7E449027F3
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
200
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
81509562.exe
Verdict:
Malicious activity
Analysis date:
2022-01-24 03:24:32 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/2a50eab7-3512-47e5-a4f0-e68f02d70388

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/221787/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61ee1a6ef81da814af9e8d09/reports/43699365-e0fb-42c9-921c-d3d35c13280b/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/59426976-c64b-469d-8e2c-6a923b7a30d2
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/925992
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 558470 Sample: 81509562.exe Startdate: 24/01/2022 Architecture: WINDOWS Score: 100 47 www.judoclubalbigny.com 2->47 49 ghs.googlehosted.com 2->49 57 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 13 other signatures 2->63 11 81509562.exe 7 2->11         started        signatures3 process4 file5 39 C:\Users\user\AppData\...\fyTZEzzhSh.exe, PE32 11->39 dropped 41 C:\Users\...\fyTZEzzhSh.exe:Zone.Identifier, ASCII 11->41 dropped 43 C:\Users\user\AppData\Local\...\tmp63C5.tmp, XML 11->43 dropped 45 C:\Users\user\AppData\...\81509562.exe.log, ASCII 11->45 dropped 69 Uses schtasks.exe or at.exe to add and modify task schedules 11->69 71 Adds a directory exclusion to Windows Defender 11->71 15 MSBuild.exe 11->15         started        18 powershell.exe 25 11->18         started        20 schtasks.exe 1 11->20         started        signatures6 process7 signatures8 79 Modifies the context of a thread in another process (thread injection) 15->79 81 Maps a DLL or memory area into another process 15->81 83 Sample uses process hollowing technique 15->83 85 2 other signatures 15->85 22 explorer.exe 15->22 injected 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        process9 dnsIp10 51 www.kalayeshi.com 185.78.22.55, 49824, 80 TEBYANIR Iran (ISLAMIC Republic Of) 22->51 53 best-free-soccer-academy.com 162.249.125.214, 49825, 80 STEADFASTUS United States 22->53 55 12 other IPs or domains 22->55 65 System process connects to network (likely due to code injection or exploit) 22->65 67 Performs DNS queries to domains with low reputation 22->67 30 raserver.exe 22->30         started        33 autofmt.exe 22->33         started        signatures11 process12 signatures13 73 Modifies the context of a thread in another process (thread injection) 30->73 75 Maps a DLL or memory area into another process 30->75 77 Tries to detect virtualization through RDTSC time measurements 30->77 35 cmd.exe 1 30->35         started        process14 process15 37 conhost.exe 35->37         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fdbca30c6db5b5bc5e1a954ce387deec23d7b77ff249ec916bcabb0a5faeb783/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-01-24 03:18:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7w6kgddnww23yxq2svgohb665qr5pn376je6zellzk5qux5ow6bq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
10ff5c8bac827b012bc5b6f789e7c23913b662453cd0bcc7f3f5192260d7a950
Formbook
1b63747868505bd36bda5292992b2ff09c371844379d7a180530e02186524627
Formbook
2ecba366860a44b8d6e0fa4e238d02ca9728e77a2ecd6ddda25a29c8c1a9cabf
Formbook
425f5003a91d1ecced29d4e5a5746806d0b7d5d4a3833c13b88677a3c27eb0de
Formbook
57037671020fbbcf7e45114c351297ed8ccf818410c36aa4030434bc41ce86b3
Formbook
719c2edea3c0aaa814d65c272598d8d64db5ac0d0cf0a9adb12fe7a0a1fc9f19
Formbook
a1d8420052bbdcaf3d318427bfe57edf5cc330fb14aaa5f4a597fac220c2a6de
Formbook
b4d5b93e0fcadfdffbaa261a8992cf3c5f9d5f4f49cebe85963b09d2bbaa225c
Formbook
e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f
Formbook
ef7a82234bc0a09983ef1f01f4947b3b16e896168ab7415110cbfa5a8c1a4126
Formbook
+ 9'511 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:m4ro loader rat suricata
Link:
https://tria.ge/reports/220124-dtmlhabahr/
Behaviour
Creates scheduled task(s)
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
1fef4f09c5eff52a13ebe7bd4b6684705c73e645286c9ed6f2462bc408c8cfea
MD5 hash:
7e92ce70400bffa7024660563f9a8b03
SHA1 hash:
234011eeb34023c7fd962fdd04b1fd004211dc28
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/c40d4a6e-a8fc-4349-a394-7bcc6ac8dea0/
Parent samples :
57037671020fbbcf7e45114c351297ed8ccf818410c36aa4030434bc41ce86b3
1b63747868505bd36bda5292992b2ff09c371844379d7a180530e02186524627
ce53a88fb28e7708bc7eae3494d020093cb81e1a15c57713db1d755b2fb7baf5
fdbca30c6db5b5bc5e1a954ce387deec23d7b77ff249ec916bcabb0a5faeb783
0be58a33d1ccbb74ef24592d2d16009bd56638aef6c294af7793e57588e04ef6
ba141be73e37f7df95cb9f9019720cb8e1ee1b8415ba1775ffda49b58400392c
07c848496720034afe83abe350943449fab047ad65d8f6ef72f841c94b409fb4
f15c18a5596a13ab928dbccd98de41e3501184cc04c1c194ce2c2d3d20e0cb55
6bce5505d894e874407ff0390d80def8b5c8dc707297ae13b896760ad1b76dd0
5da4b57909cb661822c8814842892c6ac54d9c259befd24241e16a8cb1d33ced
04be32d668503594c7ea4d919cbc77216f0353fba1c22d451c95150542c96bdf
dfbeb8125b12783be186e19392ac1f5a0dd449f826f50eceb786bd158a956dfd
894cebc6da151cbe64ab4094b2e779f433dc0865ba1cff8063747ca407454629
1e3d099137ab4d4c152e6605801b6a5ead9837cb142dca1f5e596b75181cb673
f53ef1e31efa0a5b6f391e4aef56afc3d8802e5f9ae224e59aaa7bb670458a6f
SH256 hash:
c2eb6babe505c8c2cdc627932db6f3933b2af8c8e844ee0c49f4f11870fb7090
MD5 hash:
882190da86f2f66cce38b747f7ad2d8f
SHA1 hash:
9079b4513e31c256a35b3fe1b2611b23c0fc0adc
Link:
https://www.unpac.me/results/c40d4a6e-a8fc-4349-a394-7bcc6ac8dea0/
SH256 hash:
8325a5cf7942bb46ac528c836b79180c05d71a4e7de108693d303d56bcc5def1
MD5 hash:
efdf2c54a74297c24bc73285376c432b
SHA1 hash:
564f25afb6c5599cdcd5fafaff32c1475e581af4
Link:
https://www.unpac.me/results/c40d4a6e-a8fc-4349-a394-7bcc6ac8dea0/
SH256 hash:
fdbca30c6db5b5bc5e1a954ce387deec23d7b77ff249ec916bcabb0a5faeb783
MD5 hash:
bbc10e39f7c1328e99abc36d3ce78c52
SHA1 hash:
26d1a46bb29352bc0af5c8ac74b66ed25977bcca
Link:
https://www.unpac.me/results/c40d4a6e-a8fc-4349-a394-7bcc6ac8dea0/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/fdbca30c6db5/report/overview.html
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/fdbca30c6db5b5bc5e1a954ce387deec23d7b77ff249ec916bcabb0a5faeb783

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
Create hunting rule
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 fdbca30c6db5b5bc5e1a954ce387deec23d7b77ff249ec916bcabb0a5faeb783

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/221787/

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