MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a8bbaec439e24e11ba2264e1bc2115ac32c0adf3f070a106319c34a208a79cb. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a8bbaec439e24e11ba2264e1bc2115ac32c0adf3f070a106319c34a208a79cb
SHA3-384 hash: 67b795396eeaf7f8f64068fbeab1684fa403a0192a09fa1340448842ee2bce997838799aedd7063120bec119bbe9f209
SHA1 hash: 6f3c15f3af52f34f3f45d1d1c3d2e4db7ddb7d4f
MD5 hash: 28631837a44d7f5de02f79491f98b179
humanhash: freddie-fifteen-blue-venus
File name:#-Product request-1st-10-2021_PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:560'640 bytes
First seen:2021-10-01 06:32:27 UTC
Last seen:2021-10-01 10:50:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:ojYT6SCqWO2edglo9ASFoS7oQlMXzycDnbS9Ki6kHpq8:ojCTWOwJ+7NlMjBDnblQq8
Threatray 10'530 similar samples on MalwareBazaar
TLSH T1ACC4DF96E3136D0AFDEACAFF01D995A31B6358010843C52FA9E4369E182F7BD51613B3
File icon (PE):PE icon
dhash icon 012b2b2b2b2b2b80 (12 x AgentTesla, 2 x NanoCore, 2 x Loki)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
109
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
#-Product request-1st-10-2021_PDF.exe
Verdict:
Malicious activity
Analysis date:
2021-10-01 06:34:44 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4a641522-8acb-4af7-80b7-183f5c45f934

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/193868/
Detection(s):
SecuriteInfo.com.Artemis28631837A44D.23868.14625.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3faac78f-76bb-40cf-962a-811dcb3fa465
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/862505
Signature
.NET source code contains potential unpacker
Contains functionality to register a low level keyboard hook
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Multi AV Scanner detection for dropped 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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 494932 Sample: #-Product request-1st-10-20... Startdate: 01/10/2021 Architecture: WINDOWS Score: 100 56 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->56 58 Multi AV Scanner detection for dropped file 2->58 60 Yara detected AgentTesla 2->60 62 8 other signatures 2->62 7 #-Product request-1st-10-2021_PDF.exe 7 2->7         started        11 oENTupu.exe 5 2->11         started        13 oENTupu.exe 4 2->13         started        process3 file4 40 C:\Users\user\AppData\...\ucjzHqubnyh.exe, PE32 7->40 dropped 42 C:\Users\user\AppData\Local\...\tmp1AAB.tmp, XML 7->42 dropped 64 Injects a PE file into a foreign processes 7->64 15 #-Product request-1st-10-2021_PDF.exe 2 9 7->15         started        20 schtasks.exe 1 7->20         started        66 Multi AV Scanner detection for dropped file 11->66 68 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->68 70 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->70 22 schtasks.exe 11->22         started        24 oENTupu.exe 11->24         started        26 schtasks.exe 13->26         started        28 oENTupu.exe 13->28         started        signatures5 process6 dnsIp7 44 us2.smtp.mailhostbox.com 208.91.199.224, 49841, 49855, 587 PUBLIC-DOMAIN-REGISTRYUS United States 15->44 46 smtp.teknikl6.com 15->46 36 C:\Users\user\AppData\Roaming\...\oENTupu.exe, PE32 15->36 dropped 38 C:\Users\user\...\oENTupu.exe:Zone.Identifier, ASCII 15->38 dropped 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->48 50 Tries to steal Mail credentials (via file access) 15->50 52 Tries to harvest and steal ftp login credentials 15->52 54 3 other signatures 15->54 30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        34 conhost.exe 26->34         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8a8bbaec439e24e11ba2264e1bc2115ac32c0adf3f070a106319c34a208a79cb/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-01 06:33:12 UTC
AV detection:
11 of 45 (24.44%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rkf3v3cdtysocg5cezhbxqqrllbsycw7h4dquedddhbuuiekphfq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
27063a947fb63661a2a131bba2aa322b7d3769bd0ac7a893c5c71a8593cdcd8a
AgentTesla
27f0ce1366b8bc660d75bbf29ca8b308f6c74bb3dacc981f50d1a799cdaa0be2
AgentTesla
34447645d08047aa1dc93ea1883cdaa78d32a9fb8db859d4738df40ff4e6515a
AgentTesla
3dd0ab716a91895df7788197ba7527c9461432a1a35bdec48c6aabda435e0c43
AgentTesla
6d3deba9b84a0196b94370ee9a1201893fcacacc6736638407d0c4b11b7995a2
AgentTesla
7295a582fe88bca9f42f2849c9d40ceeff3006c1911dbb08e6ecf02f20cfa60a
AgentTesla
8011e22f056cc3a11f8e32fd6b122631e76f254c9c32eec5f2381bc5881dcbe6
AgentTesla
cd179ca0038d3dd52e167f59a845286e10c25019b04bbf3f51cbea30e6764d07
AgentTesla
cefc37260e6d63a0c5c83a7aba399ae4bbbca5e149dbcf190c3af4b170ed15cd
AgentTesla
d5da6430a92bdd15260c088d86e44ce5ef30bc1502976a6c6a22991f86506a89
AgentTesla
+ 10'520 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/211001-hbhbaabac9/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
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:
acd45a4f036d77685caf21fa1cac266e2883b96433d1cfa19539d3d38953886e
MD5 hash:
9b435ff1d9725278c114c1844cc71d79
SHA1 hash:
ca058df4e91911b30354901df9ea87fd968f14c9
Link:
https://www.unpac.me/results/f6595433-858f-48b4-9d93-93fe4cbec82f/
SH256 hash:
c1565df490420f181ec08432ca27e5aae967fe287fb1a1b48f6db70736c4b24d
MD5 hash:
2ade7d162fda1515508a9cb9e151d564
SHA1 hash:
894a19422d0e3771617024df178e0b151b1fe5dd
Link:
https://www.unpac.me/results/f6595433-858f-48b4-9d93-93fe4cbec82f/
SH256 hash:
08ae1cf4ba61610cf4eb677447840c35cedf6e903d90cb1d31291124221c27ae
MD5 hash:
bfdef44485f1c96d9de357dadaacfbb5
SHA1 hash:
4386d4e2e969cc94371a0301ab022eb94b5bbdd7
Link:
https://www.unpac.me/results/f6595433-858f-48b4-9d93-93fe4cbec82f/
SH256 hash:
808967b6b3f6cfc7bac4c7f25143111bb0531c2295b1a303ce34a6d42f8cee76
MD5 hash:
07f125fef99973abed38451398e94e47
SHA1 hash:
3c8e56e6da9a0be0925098ad913f09c54060677b
Link:
https://www.unpac.me/results/f6595433-858f-48b4-9d93-93fe4cbec82f/
SH256 hash:
8a8bbaec439e24e11ba2264e1bc2115ac32c0adf3f070a106319c34a208a79cb
MD5 hash:
28631837a44d7f5de02f79491f98b179
SHA1 hash:
6f3c15f3af52f34f3f45d1d1c3d2e4db7ddb7d4f
Link:
https://www.unpac.me/results/f6595433-858f-48b4-9d93-93fe4cbec82f/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/8a8bbaec439e/report/overview.html
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/8a8bbaec439e24e11ba2264e1bc2115ac32c0adf3f070a106319c34a208a79cb

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
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
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

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

Malspam

AgentTesla

Executable exe 8a8bbaec439e24e11ba2264e1bc2115ac32c0adf3f070a106319c34a208a79cb

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/193868/

Comments