MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4583427e5d8f5551695805e10c65134fb1c425a50e171023fbd8b1e49cd9a0a3. 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


AgentTesla


Vendor detections: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4583427e5d8f5551695805e10c65134fb1c425a50e171023fbd8b1e49cd9a0a3
SHA3-384 hash: 032d9cff38517f115fc27c192beb78c80abb6de325444613766dd121198a83e74c04a4a7dde455939f0beb85d106ddeb
SHA1 hash: 643cf2d1e88456fcc927c45154ace2d5c4f4dbd4
MD5 hash: ec9a9dc9554c0c94b5979ec1f37e9fbb
humanhash: connecticut-timing-three-december
File name:callyzx.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'126'912 bytes
First seen:2021-12-15 14:56:43 UTC
Last seen:2021-12-15 17:04:49 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:hOwODAfsvVTfZ8SmYx2wkHVEOZ9SD7sQ/fw0GwbGGGfu:cWSmMeVEt/tGwbGGGfu
Threatray 13'444 similar samples on MalwareBazaar
TLSH T1C835237376F9832AE2AC53BDA6706230733176769225E71F0D9971EE1DE2B4241C2633
File icon (PE):PE icon
dhash icon b3b3333969693b3b (69 x Formbook, 63 x AgentTesla, 26 x Loki)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
171
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CV.doc
Verdict:
Malicious activity
Analysis date:
2021-12-15 10:50:36 UTC
Tags:
exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/919fe11f-9744-4e87-9018-86e547a24190

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/214359/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen3.8511.26025.18170.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Sending a custom TCP request
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/61ba024181d2323720032f63/reports/51126867-cc9f-4df3-94a3-2a0ea73894e7/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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7e62ef1c-81da-4595-9d6d-78ba26131023
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/907955
Signature
.NET source code contains potential unpacker
Found malware configuration
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 540433 Sample: callyzx.exe Startdate: 15/12/2021 Architecture: WINDOWS Score: 92 10 Found malware configuration 2->10 12 Multi AV Scanner detection for submitted file 2->12 14 Yara detected AgentTesla 2->14 16 4 other signatures 2->16 6 callyzx.exe 2 2->6         started        process3 process4 8 callyzx.exe 6->8         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4583427e5d8f5551695805e10c65134fb1c425a50e171023fbd8b1e49cd9a0a3/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-15 09:50:33 UTC
File Type:
PE (.Net Exe)
Extracted files:
28
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1426445f6d5597d610f3480ce814969f67cf8557648cac0aea8627b4ee235a8c
AgentTesla
3343bd70c5e77d6b6f18db8b8f9b42e65c3f89d6e0ef88cfbf8d50d8c8132be4
AgentTesla
5d44ada112ea85f6453cd593f4cf56af75cc768c462e2c25bf3a5a54a4386696
AgentTesla
8a0afb2acdc2403ded68c297e922bc9ed98447457be8c267d4654949925d69d6
AgentTesla
be746b9dad08ffbb0d6f86c0a27dde469e3d1fa6500531636b6b68980a7c615a
AgentTesla
c18374cf7e46501dd7cc24f5c85459ee9ff1c5be6354cc2435e10b7cd14a79ba
AgentTesla
e28d5254f259f021ad807092189fc8d60c8de80213760094fe2a9eddab2fc159
AgentTesla
fb05655473b38a54808c4b7d2a6a922db1a9444171d0cd4743f487ade124f047
AgentTesla
+ 13'434 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/211215-sblntaagaq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
11598093f2b888d569ec243c71c91e07d7047bf65565817699979eca9de797e1
MD5 hash:
b485ebfd85254453098a4e4f7743170d
SHA1 hash:
f82a53e734f46190ccd7c2afa9cec8f209221ab0
Link:
https://www.unpac.me/results/91a4f35d-b6c6-43da-be8e-a71a635bc652/
SH256 hash:
4a9526c7c3ee46cab6b779fd8cdb6b80e74e1842ec5e326d47910f1a50710e27
MD5 hash:
2d3ca6a9b0debb263cf275f9babef152
SHA1 hash:
73498446cefd9d59bf42b4754d3b290d2cc6a6bc
Link:
https://www.unpac.me/results/91a4f35d-b6c6-43da-be8e-a71a635bc652/
SH256 hash:
e0084dc966cde73684bf17440a6f8585c399b12e204512e0674ee4e0c2994fd7
MD5 hash:
6b75c5d6dbe7e05cde9bf5de4a916bba
SHA1 hash:
0bfad56382c341b0a75214c94ff075c4e922dc85
Link:
https://www.unpac.me/results/91a4f35d-b6c6-43da-be8e-a71a635bc652/
SH256 hash:
4583427e5d8f5551695805e10c65134fb1c425a50e171023fbd8b1e49cd9a0a3
MD5 hash:
ec9a9dc9554c0c94b5979ec1f37e9fbb
SHA1 hash:
643cf2d1e88456fcc927c45154ace2d5c4f4dbd4
Link:
https://www.unpac.me/results/91a4f35d-b6c6-43da-be8e-a71a635bc652/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4583427e5d8f5551695805e10c65134fb1c425a50e171023fbd8b1e49cd9a0a3

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.

  
Delivery method
Other
  
URLhaus
https://urlhaus.abuse.ch/url/1866463/
Cape
Cape
https://www.capesandbox.com/analysis/214359/

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