MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1f5174c7267e492c229c159fcbcd8e0c11678a9bca170066efbd9824d77b030. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f1f5174c7267e492c229c159fcbcd8e0c11678a9bca170066efbd9824d77b030
SHA3-384 hash: e7c4352324efbf67b7801419da6bf0cc50d9066135f2ae2c25e9934588cd13aa5fc96c85d2a47749b0708a505b4bb5a7
SHA1 hash: db459a6baca39569fa11f4491a70789f96306d59
MD5 hash: 77d809075aec2ed2303ff0991155bfa8
humanhash: eighteen-asparagus-july-lactose
File name:CBHU28163142031024291.xls.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:755'200 bytes
First seen:2021-02-05 14:38:49 UTC
Last seen:2021-02-05 17:17:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:0CbrnWgg/P6JGz6banPhVAZ+2fZi9709qc2Ist/ZpFy5rCJXnObyBfstbpW7Uan0:NrWgHZBSty5rCx+yZaW4anZM9
Threatray 2'453 similar samples on MalwareBazaar
TLSH C7F4BE9C366471EFC857D8728EB86C68FA6534BB571F8207902319EC9A1C89BCF145F2
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
111
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CBHU28163142031024291.xls.exe
Verdict:
Malicious activity
Analysis date:
2021-02-05 14:41:25 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d3ed5de8-6729-4d9c-a6d8-a32f076e4a00

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/115747/
Detection(s):
SecuriteInfo.com.Variant.Bulz.343106.7416.25103.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
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/600303
Signature
.NET source code contains very large array initializations
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
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 Double Extension
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 an obfuscated file name to hide its real file extension (double extension)
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 349174 Sample: CBHU28163142031024291.xls.exe Startdate: 05/02/2021 Architecture: WINDOWS Score: 100 41 Multi AV Scanner detection for submitted file 2->41 43 Yara detected AgentTesla 2->43 45 Yara detected AntiVM_3 2->45 47 8 other signatures 2->47 6 CBHU28163142031024291.xls.exe 3 2->6         started        10 winfiles.exe 3 2->10         started        12 winfiles.exe 2 2->12         started        process3 file4 21 C:\...\CBHU28163142031024291.xls.exe.log, ASCII 6->21 dropped 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->49 51 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->51 53 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 6->53 14 CBHU28163142031024291.xls.exe 17 5 6->14         started        55 Multi AV Scanner detection for dropped file 10->55 57 Machine Learning detection for dropped file 10->57 19 winfiles.exe 14 2 10->19         started        signatures5 process6 dnsIp7 27 api.telegram.org 149.154.167.220, 443, 49756, 49757 TELEGRAMRU United Kingdom 14->27 23 C:\Users\user\AppData\...\winfiles.exe, PE32 14->23 dropped 25 C:\Users\...\winfiles.exe:Zone.Identifier, ASCII 14->25 dropped 29 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->29 31 Tries to steal Mail credentials (via file access) 14->31 33 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->33 35 Tries to harvest and steal ftp login credentials 19->35 37 Tries to harvest and steal browser information (history, passwords, etc) 19->37 39 Installs a global keyboard hook 19->39 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f1f5174c7267e492c229c159fcbcd8e0c11678a9bca170066efbd9824d77b030/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-02-05 02:55:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6h2rotdsm7sjfqrjyfm7zpgy4darm6fjxsqxabto7pmyetlxwaya._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
05edc3fe4fb4bfa22e5e3ce66e66a4f258adc1aebbb26142bafd1a9264feb4b9
AgentTesla
2a24e55affebdf336e67fe9ba8f667b095784a6bc6857ce8b89e7c48c8a8fd21
AgentTesla
491139cde010544822237cf87d9a34ace22a8e2bfd4eb7cc5ebd060e465e63f7
AgentTesla
6b75182568a1cf2fef851977be460536fe4a0af4aaf05b41a253c53f2af276fc
AgentTesla
6f28dbb8b4fbf8e652d27a5831bb78cc397b8e1d4c8ec60f49013fdb31c3bf80
AgentTesla
9898c37e93d4e9a054c013f34ca57c1aa9130112c9104386219f94e1125d0b97
AgentTesla
994ba670bf29b750e1320619b3ebade5035cba65e91be47e0f3f33bfa83b38c1
AgentTesla
9ada932ad6919b4f21da2eb872e9af9ab1da22a818a13c57ae65b8679c6c7be1
AgentTesla
a97528499bee868023a6898c85da34f9ed73a5a12b8a3a01817a88d82a8c5641
AgentTesla
e64b92bf32ded15a31b4d29b24e7bcd4f20a8af4a62832384bc7e027a9ea41bd
AgentTesla
+ 2'443 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/210205-w5s3f2y8n6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
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
Unpacked files
SH256 hash:
e3d1be128cc513be865c3d691d92be3eed156b4dd5693328e2d6650c90f607f6
MD5 hash:
5be8e13b80e553ab6d16c0541e296aa7
SHA1 hash:
fdfb0983f32c61834b6ddfbf02e204d92f303326
Link:
https://www.unpac.me/results/a968c3eb-3688-483d-8273-14e050210c9a/
SH256 hash:
bb554b4189dfba75851ec8b0d973dbe9eceff9a5b0a23c6adc2478515b8045ec
MD5 hash:
ea44ee7c41557a3301c80a34ca5761c0
SHA1 hash:
b408cbf468fd158eb77fe2e5e2494abea511806d
Link:
https://www.unpac.me/results/a968c3eb-3688-483d-8273-14e050210c9a/
SH256 hash:
89227558ecf314c81363d4d5c393829eda77afdbbbd113b9d497a7406647ab0a
MD5 hash:
1714b890e1c58249116119dc188a162b
SHA1 hash:
037a07cafd6576784d771a4345f0564080ed52d5
Link:
https://www.unpac.me/results/a968c3eb-3688-483d-8273-14e050210c9a/
SH256 hash:
f1f5174c7267e492c229c159fcbcd8e0c11678a9bca170066efbd9824d77b030
MD5 hash:
77d809075aec2ed2303ff0991155bfa8
SHA1 hash:
db459a6baca39569fa11f4491a70789f96306d59
Link:
https://www.unpac.me/results/a968c3eb-3688-483d-8273-14e050210c9a/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f1f5174c7267e492c229c159fcbcd8e0c11678a9bca170066efbd9824d77b030

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:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/115747/

Comments