MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 13d90261f73ecaa7455ccdaf16de6d96b122e8829cbf0ffe84ab89fc2cf4cad2. 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


ag


Vendor detections: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 13d90261f73ecaa7455ccdaf16de6d96b122e8829cbf0ffe84ab89fc2cf4cad2
SHA3-384 hash: 25c2a10b7653d7c8683adbc8af20b531cb5c5426c941b5e1d7edd327a4491667d31a88d3364b2cb8e364a85ad816e652
SHA1 hash: 6e6116fca5d75635c5906ed87db698fad545f087
MD5 hash: 6670c19ddf28b94dc9832ef37a4b976f
humanhash: august-fix-comet-nevada
File name:copy of declaration certificate�& Tan lette.exe.gz.exe
Download: download sample
Signature ag
Create hunting rule
File size:1'634'816 bytes
First seen:2021-07-26 06:53:51 UTC
Last seen:2021-07-26 11:05:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:/uXy4mW5oaXpcB7mVSaccPuvcd5OGQT/1/0nS+7n4SYwqK4zf3RTsAHWAgqChJ+H:GfhiectlWAdrHcVwM8NQuiNB/e
Threatray 7'371 similar samples on MalwareBazaar
TLSH T10F75080C6DDEB26BF65B11BC356C10D85066FC19C708ADB7AE0ABBF67062E95503B087
dhash icon f0dcf8dcdcd0ccf0 (13 x AgentTesla, 6 x Formbook, 4 x Loki)
Reporter cocaman
Tags:ag exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
127
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
copy of declaration certificate�& Tan lette.exe.gz.exe
Verdict:
Malicious activity
Analysis date:
2021-07-26 06:56:57 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f753256c-2ed3-486c-bd50-b23d5e258806

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/174070/
Detection(s):
SecuriteInfo.com.Artemis6670C19DDF28.19578.3851.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
UNKNOWN
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/4ed79eb6-fcb0-4d1d-af01-c1d23f517c96
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/821641
Signature
.NET source code contains very large array initializations
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Suspicious Process Start Without DLL
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 454053 Sample: copy of declaration certifi... Startdate: 26/07/2021 Architecture: WINDOWS Score: 100 41 Found malware configuration 2->41 43 Multi AV Scanner detection for dropped file 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 5 other signatures 2->47 7 copy of declaration certificate#Ufffd& Tan lette.exe.gz.exe 7 2->7         started        11 DBqQu.exe 2 2->11         started        13 DBqQu.exe 1 2->13         started        process3 file4 27 C:\Users\user\AppData\Roaming\Ouvuudly.exe, PE32 7->27 dropped 29 C:\Users\user\AppData\Local\...\tmpB1CE.tmp, XML 7->29 dropped 31 copy of declaratio...ette.exe.gz.exe.log, ASCII 7->31 dropped 49 Writes to foreign memory regions 7->49 51 Injects a PE file into a foreign processes 7->51 15 RegSvcs.exe 2 4 7->15         started        19 schtasks.exe 1 7->19         started        21 conhost.exe 11->21         started        23 conhost.exe 13->23         started        signatures5 process6 file7 33 C:\Users\user\AppData\Roaming\...\DBqQu.exe, PE32 15->33 dropped 35 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->35 37 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 15->37 39 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->39 25 conhost.exe 19->25         started        signatures8 process9
Gathering data
Threat name:
ByteCode-MSIL.Trojan.Hesv
Create hunting rule
Status:
Malicious
First seen:
2021-07-26 02:35:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
7 of 46 (15.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cpmqeypxh3fkork4zwxrnxtns2ysf2ects7q77uevoe7ylhuzlja._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1b467c02c56a9130e3fb9e62e0ee62aa6b950845c9858f95656e659b814699c3
ag
2e525c09344f83f1f77d92e492a3fe75158e5424dcc22be92a45870168275879
ag
566554b534a53102dd67fc20bd07ca49241b51616d73619e383e80bdfc4fe08a
ag
7b4b43d22be88ed3b2054ef7090ebb7b44ecc03dffa6c32e578002c9a12cbea8
ag
a10f8284111774da520ee4ddba45bbca1d55441ef48e9da3143aa2ea06f4e635
ag
ac0c4591048b91693d05df6d5c00622a1b3cd0959d6e6bdbda49ea0e2a218007
ag
bd6455c559a9308054622aa9a30388d0ac83dd09af4ce4d1e9a715e2f1baeb53
ag
c2f77aaf305ed67feccf0a292e85a872c3d30499aae0311286e55c491f2bd074
ag
d01af87f10163ca735092945c5bc8710856ee81399a15be1a1d0007f0a1e167c
ag
dc8b8addeb256bdfb0eb82d09b54b57400deed315a727e331fe66ca59c965373
ag
+ 7'361 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210726-9tya418pj6/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
de5789174361d73723459b063a161d22943076a69b31ce2dbfe554fd6a77bb35
MD5 hash:
4c18fbb276f17c0361c3ae33b6c95219
SHA1 hash:
f7b7b2e7b041620063acd74d16308ee6044506ea
Link:
https://www.unpac.me/results/bc9ace21-f056-4b3a-9ef0-a2b183a5811e/
SH256 hash:
13d90261f73ecaa7455ccdaf16de6d96b122e8829cbf0ffe84ab89fc2cf4cad2
MD5 hash:
6670c19ddf28b94dc9832ef37a4b976f
SHA1 hash:
6e6116fca5d75635c5906ed87db698fad545f087
Link:
https://www.unpac.me/results/bc9ace21-f056-4b3a-9ef0-a2b183a5811e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/13d90261f73ecaa7455ccdaf16de6d96b122e8829cbf0ffe84ab89fc2cf4cad2

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

ag

gz 460c1a3e3ebb44c19e9f66dbf1c097fb2d357d82dc318350c0a56968a441d2aa

ag

Executable exe 13d90261f73ecaa7455ccdaf16de6d96b122e8829cbf0ffe84ab89fc2cf4cad2

(this sample)

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/174070/
  
Dropped by
SHA256 460c1a3e3ebb44c19e9f66dbf1c097fb2d357d82dc318350c0a56968a441d2aa

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