MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8733c16273b105edefcf2b239ff79a20c527f961096f0dad6adf1823bdbc081b. 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 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8733c16273b105edefcf2b239ff79a20c527f961096f0dad6adf1823bdbc081b
SHA3-384 hash: f1b9226933124f775289393759996975480efdae973f8b3c5b267822eb9e2c1933b9b550945d1a9d2b8c9b1e529044a4
SHA1 hash: ea124c7620654369c678934af5e502cf7a988d09
MD5 hash: e519d1b7e85c0b88c8838643a26f1687
humanhash: eleven-wyoming-romeo-nineteen
File name:e519d1b7e85c0b88c8838643a26f1687
Download: download sample
Signature Formbook
Create hunting rule
File size:1'319'424 bytes
First seen:2021-12-13 20:25:32 UTC
Last seen:2021-12-13 21:57:31 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:CFnHndxLn4NkT++PCEtJvWCjqiHynkmSRRuYbqo9wTDobXOHtEga:CFHdxD4aavEmhEMTSRRXbl2wDOyga
TLSH T1BD55122833E88964E47F13B9A071D1348735BD116926C32EAAD07CEF7E73B91890579B
File icon (PE):PE icon
dhash icon 60b2a2cc0796cc68 (8 x Formbook, 5 x Loki, 4 x SnakeKeylogger)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
196
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4d2bdbb88b155c4ac890f127ef69fbc511a4991d6bece1d3354932e27c2fae2e.xlsx
Verdict:
Malicious activity
Analysis date:
2021-12-13 07:54:18 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/b507cbec-3e32-4cae-97f9-2cc3d2198d2a

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/213752/
Detection(s):
SecuriteInfo.com.Trojan.Siggen16.5169.21854.3895.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61b7ac60db84542d41bd504e/reports/80314a23-1e5d-47a6-9f98-e9b9d383e75e/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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/8c4c8885-6213-473c-8bfe-8e0c924c271d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/906661
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 539143 Sample: zR4pRpluBH Startdate: 13/12/2021 Architecture: WINDOWS Score: 100 34 www.ascensionmemberszoom.com 2->34 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 7 other signatures 2->50 11 zR4pRpluBH.exe 3 2->11         started        signatures3 process4 file5 32 C:\Users\user\AppData\...\zR4pRpluBH.exe.log, ASCII 11->32 dropped 62 Tries to detect virtualization through RDTSC time measurements 11->62 64 Injects a PE file into a foreign processes 11->64 15 zR4pRpluBH.exe 11->15         started        signatures6 process7 signatures8 66 Modifies the context of a thread in another process (thread injection) 15->66 68 Maps a DLL or memory area into another process 15->68 70 Sample uses process hollowing technique 15->70 72 Queues an APC in another process (thread injection) 15->72 18 explorer.exe 15->18 injected process9 dnsIp10 36 www.chinagxsy.com 103.75.46.107, 49850, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Hong Kong 18->36 38 526854.rest 198.54.115.106, 49857, 80 NAMECHEAP-NETUS United States 18->38 40 6 other IPs or domains 18->40 52 System process connects to network (likely due to code injection or exploit) 18->52 22 help.exe 18->22         started        26 autoconv.exe 18->26         started        signatures11 process12 dnsIp13 42 192.168.2.1 unknown unknown 22->42 54 Self deletion via cmd delete 22->54 56 Modifies the context of a thread in another process (thread injection) 22->56 58 Maps a DLL or memory area into another process 22->58 60 Tries to detect virtualization through RDTSC time measurements 22->60 28 cmd.exe 1 22->28         started        signatures14 process15 process16 30 conhost.exe 28->30         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8733c16273b105edefcf2b239ff79a20c527f961096f0dad6adf1823bdbc081b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-13 10:38:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
36
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:hno0 loader rat
Link:
https://tria.ge/reports/211213-y7vjgsecb3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.heidecide.xyz/hno0/
Unpacked files
SH256 hash:
8733c16273b105edefcf2b239ff79a20c527f961096f0dad6adf1823bdbc081b
MD5 hash:
e519d1b7e85c0b88c8838643a26f1687
SHA1 hash:
ea124c7620654369c678934af5e502cf7a988d09
Link:
https://www.unpac.me/results/0d22bb49-ab6f-4671-a1bc-6c9a367ab2cd/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/8733c16273b1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8733c16273b105edefcf2b239ff79a20c527f961096f0dad6adf1823bdbc081b

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: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.

Web download

Formbook

Executable exe 8733c16273b105edefcf2b239ff79a20c527f961096f0dad6adf1823bdbc081b

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1881605/
Cape
Cape
https://www.capesandbox.com/analysis/213752/
  
URLhaus
https://urlhaus.abuse.ch/url/1882574/

Comments


Avatar
zbet commented on 2021-12-13 20:25:34 UTC

url : hxxp://3.112.194.196/31111/cce.exe