MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2c26343342361efe4ada7dd077f832792eb77f184ec9a6c5b8c3a8ad35dd5aaa. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2c26343342361efe4ada7dd077f832792eb77f184ec9a6c5b8c3a8ad35dd5aaa
SHA3-384 hash: c59d6c5b41e3e430df5585d95f8b513931ab9a925c0f1ac87706af315ee9a0470b8f8190ab7736dd9ef2b38c1e0ea69b
SHA1 hash: 7dca5c03f55ab6cbebd6bb3a8203d5c1d7516567
MD5 hash: f943d9ee79559042bfff9b4e55270cfa
humanhash: network-wolfram-bravo-iowa
File name:TNT Documents.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:503'808 bytes
First seen:2021-12-02 16:25:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:dIzgxqzpbqi/RAu/jlYQpYRKz7OoDxI7pIHL0i:dew2Zqi/B/Jb+IX9I7pIr0
Threatray 12'296 similar samples on MalwareBazaar
TLSH T147B4CF2122C5D7A5F93FEBB91C20718113FBF1EAE611E5DDFE9510A948A2F804E70972
Reporter abuse_ch
Tags:exe FormBook TNT

Intelligence

File Origin
# of uploads :
1
# of downloads :
202
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
TNT Documents.exe
Verdict:
Malicious activity
Analysis date:
2021-12-02 16:59:34 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/c6d5d7de-2847-4853-96b2-11cae5def342

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/210809/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching the process to change network settings
Launching cmd.exe command interpreter
Searching for synchronization primitives
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61a8f39c86bf67e712202dba/reports/ee949d6b-28ae-49aa-87b7-8f6f69d0129a/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/a57bbe4e-0770-470b-810d-1aca79cb6487
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/900380
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
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: 532859 Sample: TNT Documents.exe Startdate: 02/12/2021 Architecture: WINDOWS Score: 100 33 www.viavelleiloes.online 2->33 35 www.projectcentered.com 2->35 37 5 other IPs or domains 2->37 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 11 other signatures 2->51 11 TNT Documents.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\...\TNT Documents.exe.log, ASCII 11->31 dropped 63 Injects a PE file into a foreign processes 11->63 15 TNT Documents.exe 11->15         started        18 TNT Documents.exe 11->18         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 20 explorer.exe 15->20 injected process9 dnsIp10 39 metronixmedical.com 119.18.54.99, 49820, 80 PUBLIC-DOMAIN-REGISTRYUS India 20->39 41 cortepuroiberico.com 51.255.30.106, 49794, 80 OVHFR France 20->41 43 5 other IPs or domains 20->43 53 System process connects to network (likely due to code injection or exploit) 20->53 24 mstsc.exe 20->24         started        signatures11 process12 signatures13 55 Self deletion via cmd delete 24->55 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2c26343342361efe4ada7dd077f832792eb77f184ec9a6c5b8c3a8ad35dd5aaa/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-02 16:26:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
24 of 27 (88.89%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fqtdim2cgypp4sw2pxihp6bspexlo7yyj3e2nrnyyouk2no5lkva._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
02770b935248ab8dc915413f9d9fc3090749bda9ed3185df7a8c253a76f8253f
Formbook
1bdc41058e53e885ccf81cf42ddac59733b6608f40719017dde98ac33ed8b8f5
Formbook
5f5195f363ef21135a5b5298c2a3576bd03125eec094d769b25296eb0a2605b9
Formbook
90995079eb10cbbc7da16c81c68775a46c65a2901eca1731d537192d8266fed0
Formbook
934615bde495d4cbbfd0178c6eea46804cb19a447db1a8781bb43c5986012cbb
Formbook
cd53040ec21c86fa58a23ef8a844b96b05454800c6aabe0e9d5772e3ab07bce6
Formbook
d079479dd85fb94fe08f6cd70cfff35e39c14294174a8ed6f9b480ffc1cbc9b2
Formbook
d559f37dbda95ac2f2e50388cae80a4ee30c81216b644f65ecf4c1ceb87a0b5a
Formbook
ede0725557e08c21c523681648ace4a5b9d7b3dcfc29f4cda7db92c80b61f038
Formbook
+ 12'286 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:how6 loader rat suricata
Link:
https://tria.ge/reports/211202-txhdysadfk/
Behaviour
Enumerates system info in registry
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
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.floridanratraining.com/how6/
Unpacked files
SH256 hash:
1fc40766b89855ea63ffaf0f87950c8e2f475e760147315931fc63398e92b5be
MD5 hash:
14d8e65d89362eaf13433c91558d97ce
SHA1 hash:
af2ea108699738bd1e10b88f7b9cd804fe75a3a8
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/9b49a84f-b9fd-47f0-bea3-8a670f4e59ed/
Parent samples :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 hash:
c294b97add9fe48492da685de80d3cb0f458227715ba0d39c29e649ecaad7946
MD5 hash:
a4fcefc0b55739a485500b3879234d27
SHA1 hash:
ca3d831bea10f6d81ce436f90303b8c1f990200a
Link:
https://www.unpac.me/results/9b49a84f-b9fd-47f0-bea3-8a670f4e59ed/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/9b49a84f-b9fd-47f0-bea3-8a670f4e59ed/
SH256 hash:
2c26343342361efe4ada7dd077f832792eb77f184ec9a6c5b8c3a8ad35dd5aaa
MD5 hash:
f943d9ee79559042bfff9b4e55270cfa
SHA1 hash:
7dca5c03f55ab6cbebd6bb3a8203d5c1d7516567
Link:
https://www.unpac.me/results/9b49a84f-b9fd-47f0-bea3-8a670f4e59ed/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/2c2634334236/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2c26343342361efe4ada7dd077f832792eb77f184ec9a6c5b8c3a8ad35dd5aaa

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
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 2c26343342361efe4ada7dd077f832792eb77f184ec9a6c5b8c3a8ad35dd5aaa

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/210809/

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