MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8707af08ec5c7b76ea40346f7b62861080f534fc2438a30cda18260563a7c16e. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8707af08ec5c7b76ea40346f7b62861080f534fc2438a30cda18260563a7c16e
SHA3-384 hash: 97bdf177e8d9c0def10bfbfa02ea035bf966dc7acea39df74e4c9ef32206fbb27fc120d18e86f1e19208995ebd32ae93
SHA1 hash: 4fa6bef9ecd2944e1aad61997e6d75c84b16d202
MD5 hash: dae3163f0a76fa36c909d53cd489aa12
humanhash: nevada-low-autumn-mike
File name:Official purchase order (PO.4029530).exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:571'904 bytes
First seen:2020-07-21 07:26:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:0d9JuVLxwuYSyRw6TBKLNbLmcpgztY/KaXCzknoLmVw111KJhOH2soq9E6qu/s6+:j82fSz0KaXN9V21jlogl30KMfpEY/
Threatray 10'633 similar samples on MalwareBazaar
TLSH 91C48C50E7F88AC9E3BA57BDE474004087B4B51AA7EAE7591B90F4E91C22750CB13F63
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

From: "Daniel J. Ogden, Esq." <jjhyd@cyber.net.pk>
Subject: RE:Official purchase order (PO.4029530)
Attachment: Official purchase order PO.4029530.zip (contains "Official purchase order (PO.4029530).exe")

AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
69
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/29796/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Moving of the original file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/392711
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 248599 Sample: Official purchase order (PO... Startdate: 21/07/2020 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Multi AV Scanner detection for submitted file 2->35 37 Yara detected AgentTesla 2->37 39 3 other signatures 2->39 6 YYtJku.exe 4 2->6         started        9 Official purchase order (PO.4029530).exe 5 2->9         started        12 YYtJku.exe 3 2->12         started        process3 file4 41 Multi AV Scanner detection for dropped file 6->41 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->43 45 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->45 14 YYtJku.exe 2 6->14         started        27 Official purchase ...PO.4029530).exe.log, ASCII 9->27 dropped 47 Injects a PE file into a foreign processes 9->47 18 Official purchase order (PO.4029530).exe 1 5 9->18         started        21 YYtJku.exe 2 12->21         started        signatures5 process6 dnsIp7 29 208.91.199.223, 49717, 587 PUBLIC-DOMAIN-REGISTRYUS United States 14->29 49 Tries to harvest and steal ftp login credentials 14->49 51 Tries to harvest and steal browser information (history, passwords, etc) 14->51 53 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->53 31 us2.smtp.mailhostbox.com 208.91.198.143, 49716, 587 PUBLIC-DOMAIN-REGISTRYUS United States 18->31 23 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 18->23 dropped 25 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 18->25 dropped 55 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->55 57 Moves itself to temp directory 18->57 59 Tries to steal Mail credentials (via file access) 18->59 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8707af08ec5c7b76ea40346f7b62861080f534fc2438a30cda18260563a7c16e/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-21 07:28:12 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=q4d26chmlr5xn2sagrxxwyugccapknh4eq4kgdg2dataky5hyfxa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'623 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla persistence
Link:
https://tria.ge/reports/200721-echspar2fj/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: RenamesItself
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Reads data files stored by FTP clients
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
0.87
Link:
https://yomi.yoroi.company/submissions/8707af08ec5c7b76ea40346f7b62861080f534fc2438a30cda18260563a7c16e

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

zip 1c42f9fa19bbfa4493771b065b614063faef0080194d7236116c204e2f626479

AgentTesla

Executable exe 8707af08ec5c7b76ea40346f7b62861080f534fc2438a30cda18260563a7c16e

(this sample)

  
Dropped by
MD5 7ca275da00dc092d0f886e51a4129d3f
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/29796/
  
Dropped by
SHA256 1c42f9fa19bbfa4493771b065b614063faef0080194d7236116c204e2f626479

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