MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a536da54a1cdf554d1fe3301c4a7936f889a7c86e166cb081429450e97cd4f6. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3a536da54a1cdf554d1fe3301c4a7936f889a7c86e166cb081429450e97cd4f6
SHA3-384 hash: eb89ead9426e49a9258a49dd4086ae398ce9925f0ac6b5e9c54a517ccb3b3900077c829b5cca4a287d368f16fe1a03da
SHA1 hash: d554a57ae4a7a500ae72deb7cd82df2a3efcb611
MD5 hash: ce38337d7ca0611374bfae6ed9edc702
humanhash: louisiana-neptune-robert-pizza
File name:ce38337d7ca0611374bfae6ed9edc702.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'389'568 bytes
First seen:2021-12-14 16:47:16 UTC
Last seen:2021-12-14 18:45:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:ocbVBflnV0J95qEXBriFpnse1sYfc+ev6NmyTjrMuQYDDmPraHboUbwKz1bzG0Ua:oQ/IJVBuXf1bU+u6+HYDKDUt1HrUaZGG
Threatray 12'191 similar samples on MalwareBazaar
TLSH T12055222C3A5397CFC52503F833A9A07853A11C7A6507E24AEE8972EF29377097937617
File icon (PE):PE icon
dhash icon b3b3333969693b3b (69 x Formbook, 63 x AgentTesla, 26 x Loki)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
183
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ce38337d7ca0611374bfae6ed9edc702.exe
Verdict:
Suspicious activity
Analysis date:
2021-12-14 17:17:10 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9a027771-c8de-43e7-a439-caf263596f74

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/214051/
Detection(s):
SecuriteInfo.com.Trojan.MulDrop19.15251.14277.30552.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware obfuscated packed
Link:
https://www.filescan.io/uploads/61b8cac9db84542d41bec1a5/reports/69633f2e-25b5-4a39-8c63-fd2625b39a7a/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/c5f9b3a9-f744-4213-bf78-e331c4b95d0a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/907272
Signature
.NET source code contains potential unpacker
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 539746 Sample: 34CvwKI9gd.exe Startdate: 14/12/2021 Architecture: WINDOWS Score: 100 32 www.sdg-65sd.com 2->32 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 5 other signatures 2->42 11 34CvwKI9gd.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\34CvwKI9gd.exe.log, ASCII 11->30 dropped 52 Tries to detect virtualization through RDTSC time measurements 11->52 54 Injects a PE file into a foreign processes 11->54 15 34CvwKI9gd.exe 11->15         started        signatures6 process7 signatures8 56 Modifies the context of a thread in another process (thread injection) 15->56 58 Maps a DLL or memory area into another process 15->58 60 Sample uses process hollowing technique 15->60 62 Queues an APC in another process (thread injection) 15->62 18 explorer.exe 15->18 injected process9 signatures10 34 Uses netstat to query active network connections and open ports 18->34 21 NETSTAT.EXE 18->21         started        process11 signatures12 44 Self deletion via cmd delete 21->44 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        26 explorer.exe 2 147 21->26         started        process13 process14 28 conhost.exe 24->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3a536da54a1cdf554d1fe3301c4a7936f889a7c86e166cb081429450e97cd4f6/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-14 16:48:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hjjw3jkkdtpvkti74mybystzg34itj6inylgzmebikkfb2l42t3a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2c797f8b23257f74c2dd577dad2c2c6cdab90dfa57a57f2f89a8a54036c6852c
Formbook
5aad7a3f3d55c4741d8a79b59e0e9f922d375adab9f998ababc03a88a2feb27c
Formbook
6876e8698f67c2b477c89b891199d3485051a14f52284f39e35a8e8057f53fae
Formbook
84c2b9e7449d2cf1ec1d43b13a9163e6fe355e3f8d301b34b7930d24f916725a
Formbook
a75c86c3baabf9dea3dd33fde9e53eb91608ba0466d947ac6f9506de45d099ea
Formbook
da9e890626946b96039a20cc107a0f7f0bc13440d9ede74799b6f9a2514e3759
Formbook
ed2f68ce6d715976cfad3c41991685f1a190713626aea55c454da90682aa7ccb
Formbook
f1767a23201e1d5d234ead79f84de4a76f789aaa83f920b8cf4e0783f125d17c
Formbook
fd7d542aa6e922020e6fb15fc151be03a967ca01b09c75cd267302b873f1a79c
Formbook
+ 12'181 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:fa83 rat spyware stealer trojan
Link:
https://tria.ge/reports/211214-va4jcagbb8/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.nshocam.com/fa83/
Unpacked files
SH256 hash:
180b50344d1b6b506d9832816f7a88ec8a04afe44cc114c1aff99bffe3868bf8
MD5 hash:
85425e1cd507aaf0dd799778f8fe432d
SHA1 hash:
1a26201e8f44fa3efa8b4e78b843445f40616447
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/63fb77c9-c028-43e9-b976-6c6d8f1a5de2/
Parent samples :
a75c86c3baabf9dea3dd33fde9e53eb91608ba0466d947ac6f9506de45d099ea
84c2b9e7449d2cf1ec1d43b13a9163e6fe355e3f8d301b34b7930d24f916725a
f1767a23201e1d5d234ead79f84de4a76f789aaa83f920b8cf4e0783f125d17c
ed2f68ce6d715976cfad3c41991685f1a190713626aea55c454da90682aa7ccb
6876e8698f67c2b477c89b891199d3485051a14f52284f39e35a8e8057f53fae
fd7d542aa6e922020e6fb15fc151be03a967ca01b09c75cd267302b873f1a79c
1409ef2f3a8f71bcac7c0e335380f5a804535dba5dca598429298a53aaec9e04
039cb9fe74c15a9ef07f795f41f1a05bf2adad49566c866f94befed5815503e4
54562896613b429de9564f501b6d277537a57dc5d0a9bbaa5260e3ffc055a543
84f01d9761a5e76774cac6a3a21c50e3b653f725276d32ea3a10d7ec00e14c99
4ae2cc851969d2bf66879df62acb3860edf32e3224b3a81460fc84ca476cf8e4
a5ad2e2a940e084ddec9db413a6c44a30b6029c8cf2bafb1320d67b1c60280e3
3a536da54a1cdf554d1fe3301c4a7936f889a7c86e166cb081429450e97cd4f6
SH256 hash:
f8ee3ec61da05401295cfc650a604dc644a16a8d7afc9f090cd9f7a0d9300317
MD5 hash:
7e9f1e09d0aa634d949c26737c26ff3c
SHA1 hash:
cb6b35efc98d0656148907ce56268a964556664d
Link:
https://www.unpac.me/results/63fb77c9-c028-43e9-b976-6c6d8f1a5de2/
SH256 hash:
6118c4b76ca86f405c5fe48378ca266066871476afcb4061547aaa1b0cfb855a
MD5 hash:
bc0dc05d372521d2a95062efcb526551
SHA1 hash:
4d6a235a8df8ca9482ec16d6c47ce637216603ae
Link:
https://www.unpac.me/results/63fb77c9-c028-43e9-b976-6c6d8f1a5de2/
SH256 hash:
3a536da54a1cdf554d1fe3301c4a7936f889a7c86e166cb081429450e97cd4f6
MD5 hash:
ce38337d7ca0611374bfae6ed9edc702
SHA1 hash:
d554a57ae4a7a500ae72deb7cd82df2a3efcb611
Link:
https://www.unpac.me/results/63fb77c9-c028-43e9-b976-6c6d8f1a5de2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/3a536da54a1cdf554d1fe3301c4a7936f889a7c86e166cb081429450e97cd4f6

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: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 3a536da54a1cdf554d1fe3301c4a7936f889a7c86e166cb081429450e97cd4f6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1866451/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/214051/

Comments