MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 13c26434028c07333f16b4ca9740f7d1c2234d81f3ed8f8f23d1c5019141479e. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 13c26434028c07333f16b4ca9740f7d1c2234d81f3ed8f8f23d1c5019141479e
SHA3-384 hash: 5551beb987f0d07a271d0e3ba6feaebed9d2aa1d19567b458d3a3cea12f16bbe47799dd7b496cb157325abd672ac1589
SHA1 hash: 3d28982f5f98926f4d9665b28008f19b88304881
MD5 hash: a935a4c37b1d1c49d2c73dd6704aa7cb
humanhash: eight-oranges-diet-enemy
File name:#98765.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:896'000 bytes
First seen:2021-09-08 12:37:18 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 12288:nPIPp7D4KyFybfe38TKO1rk9hNNcIZ7KnrR:EIyTe38zoZNcIZ7K1
Threatray 9'225 similar samples on MalwareBazaar
TLSH T1F11597ADF5BDB216627DCAC9C7D3C417E381459A3322992017B7631EA219B81F083F5E
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
289
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
#98765.exe
Verdict:
Malicious activity
Analysis date:
2021-09-08 12:39:45 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3ffb55f3-6e15-4a08-b75c-34083cfce7bc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/186347/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1023.8482.25522.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e56fd515-dd6a-498d-8a56-a27e62e16243
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/847388
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
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: 479819 Sample: #98765.exe Startdate: 08/09/2021 Architecture: WINDOWS Score: 100 33 www.toolstore-shop.com 2->33 35 www.showroomshinesalon.com 2->35 37 showroomshinesalon.com 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 9 other signatures 2->51 11 #98765.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\#98765.exe.log, ASCII 11->31 dropped 63 Tries to detect virtualization through RDTSC time measurements 11->63 65 Injects a PE file into a foreign processes 11->65 15 #98765.exe 11->15         started        18 #98765.exe 11->18         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 20 explorer.exe 15->20 injected process9 dnsIp10 39 www.rzrtyz.com 156.241.53.153, 49808, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 20->39 41 www.thegioinhikhoa.com 103.1.239.223, 49771, 80 SUPERDATA-AS-VNSUPERDATA-VN Viet Nam 20->41 43 10 other IPs or domains 20->43 53 System process connects to network (likely due to code injection or exploit) 20->53 24 explorer.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:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/13c26434028c07333f16b4ca9740f7d1c2234d81f3ed8f8f23d1c5019141479e/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-08 05:32:09 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cpbginacrqdtgpywwtfjoqhx2hbcgtmb6pwy7dzd2hcqdekbi6pa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2c2a99cd33ecf5c40ea8e15227d60b649c6eabbef386444a8a4d8030eb3b8d1b
Formbook
4311e97e616734f94d1aa4d38f37679749ae84513d132aee134fbc364d25b6ec
Formbook
43368f8d0f777c8f0a9fb5dc2ec89f131275873935098ff8a12be41cd2161ecf
Formbook
489e0e46a5df58a3144cd7a3ecb1fd0e29aa2db5060084ec774f1d2c8c763fd9
Formbook
4d15d10d62977acbf98b94bf2d836c116b5410939809e5a961a1d9dea165c3fb
Formbook
61be8eb2905c08febca2821b39701ea6a361ae21e807866d240b3b122221cf62
Formbook
a3d951fa76fbb0f24540b97767e2d327b9bdb2e6e93721cb3da4ac5370118dbc
Formbook
abb1db77386f0eb3cd2c68603ee8817d6d1015287422182845345dad70503564
Formbook
b375843ffbfaf0b9380959f057ea53aedc190786324f237b297500a7f644a6d1
Formbook
f1b2b93992ab956883815e6fea926d282fc3a423675fa1faf5ffb6cbb2ddbedb
Formbook
+ 9'215 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ipa6 loader rat
Link:
https://tria.ge/reports/210908-pt3hhaedh6/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.magayake.com/ipa6/
Unpacked files
SH256 hash:
bb2fddef69e53d0701b736736730a0eca8a5130617a6d01dcf08cf682335d271
MD5 hash:
01d3211d1c63b319266cf9a86b4c1c13
SHA1 hash:
9da1ac01cb148de72486b2ab3024649f546dc0d9
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/473e527f-241a-4da0-95ab-6475ea442814/
Parent samples :
b375843ffbfaf0b9380959f057ea53aedc190786324f237b297500a7f644a6d1
13c26434028c07333f16b4ca9740f7d1c2234d81f3ed8f8f23d1c5019141479e
SH256 hash:
c0ee1071e444f415f8b62856a0896f3b22e563f1bb4f03d14142583efe49a565
MD5 hash:
29db2e114b88ae1f6a00c9aa71690043
SHA1 hash:
ec82db71443556a5b320357b0b8b09e70ec1db9c
Link:
https://www.unpac.me/results/473e527f-241a-4da0-95ab-6475ea442814/
SH256 hash:
4085486caad0a9e8e2f01fdd4ef52c98095a679314b39f1908d0361a7c973e17
MD5 hash:
20cd7f8159c72218b08157ed6cca6243
SHA1 hash:
8fe1f94011417d77f75737beefb2809107c3f1e3
Link:
https://www.unpac.me/results/473e527f-241a-4da0-95ab-6475ea442814/
SH256 hash:
13c26434028c07333f16b4ca9740f7d1c2234d81f3ed8f8f23d1c5019141479e
MD5 hash:
a935a4c37b1d1c49d2c73dd6704aa7cb
SHA1 hash:
3d28982f5f98926f4d9665b28008f19b88304881
Link:
https://www.unpac.me/results/473e527f-241a-4da0-95ab-6475ea442814/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/13c26434028c07333f16b4ca9740f7d1c2234d81f3ed8f8f23d1c5019141479e

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.

Cape
Cape
https://www.capesandbox.com/analysis/186347/

Comments