MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23f395feba9af97086e3c3dee7cde812ad67a31cc151d9285b2fc7b2f926bc4d. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 23f395feba9af97086e3c3dee7cde812ad67a31cc151d9285b2fc7b2f926bc4d
SHA3-384 hash: 3792361fa19d459822f12e1d61191143a67bb631015bac046b1ff988f3d1a2080c346d1380820f7c47c964c5043f4987
SHA1 hash: f15e537387e7536bce3d6b1b45798590f8004009
MD5 hash: 9125cfe1da99ea9dff55f6a77ba3efb2
humanhash: batman-oscar-berlin-dakota
File name:RFQ-10092-PO-88277.PDF (234KB).exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:194'680 bytes
First seen:2021-03-30 10:53:06 UTC
Last seen:2021-03-30 11:55:58 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 768:At3PxgGAGpGzGHG8GfGmG9GkGeGMGLGoGcGOG5fIh9:k35LfC
Threatray 3'623 similar samples on MalwareBazaar
TLSH 7D14E32055EE584AFAB36F504AE0B896DDBEF7E13B1691CA0460434FDC09F906DB06B7
Reporter GovCERT_CH
Tags:AgentTesla signed

Code Signing Certificate

Organisation:SevRLqNRiPFOLylqiGnmezmT
Issuer:SevRLqNRiPFOLylqiGnmezmT
Algorithm:sha256WithRSAEncryption
Valid from:2021-03-28T09:32:45Z
Valid to:2022-03-28T09:32:45Z
Serial number: b4deee41c65117dd48acba17f5cdc6a5
Thumbprint Algorithm:SHA256
Thumbprint: 54dd37f54ef449ea7616740fe5677ab43452877ecf8edc5bf8ca5dba7e8e0102
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
114
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ-10092-PO-88277.PDF (234KB).exe
Verdict:
Malicious activity
Analysis date:
2021-03-30 10:55:28 UTC
Tags:
rat agenttesla
Link:
https://app.any.run/tasks/c9320f4b-180d-4a79-afce-c98eb09f3324

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/127962/
Detection(s):
SecuriteInfo.com.Trojan.DownLoader38.17041.396.19798.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Creating a file
Moving a recently created file
Running batch commands
Creating a process with a hidden window
Launching a process
Unauthorized injection to a recently created process
Adding an access-denied ACE
Sending a UDP request
Creating a window
Using the Windows Management Instrumentation requests
Sending an HTTP GET request to an infection source
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/658253
Signature
Contains functionality to hide a thread from the debugger
Found malware configuration
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Multi AV Scanner detection for domain / URL
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 378055 Sample: RFQ-10092-PO-88277.PDF (234... Startdate: 30/03/2021 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->35 37 Multi AV Scanner detection for domain / URL 2->37 39 Found malware configuration 2->39 41 6 other signatures 2->41 7 RFQ-10092-PO-88277.PDF (234KB).exe 15 8 2->7         started        11 WerFault.exe 2->11         started        process3 dnsIp4 27 x11fdf4few8f41f.com 104.21.73.19, 49718, 80 CLOUDFLARENETUS United States 7->27 29 192.168.2.1 unknown unknown 7->29 43 Hides threads from debuggers 7->43 45 Injects a PE file into a foreign processes 7->45 13 RFQ-10092-PO-88277.PDF (234KB).exe 2 7->13         started        17 cmd.exe 1 7->17         started        19 RFQ-10092-PO-88277.PDF (234KB).exe 7->19         started        21 RFQ-10092-PO-88277.PDF (234KB).exe 11->21 injected signatures5 process6 dnsIp7 31 udupis.com 199.79.62.20, 49750, 587 PUBLIC-DOMAIN-REGISTRYUS United States 13->31 33 mail.udupis.com 13->33 47 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->47 49 Tries to steal Mail credentials (via file access) 13->49 51 Tries to harvest and steal ftp login credentials 13->51 53 Tries to harvest and steal browser information (history, passwords, etc) 13->53 23 conhost.exe 17->23         started        25 timeout.exe 1 17->25         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/23f395feba9af97086e3c3dee7cde812ad67a31cc151d9285b2fc7b2f926bc4d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-29 10:07:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=epzzl7v2tl4xbbxdyppoptpickwwpiy4yfi5skc3f7d3f6jgxrgq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
20930a912e8c5fc24f604f9605a234e5c2b887d1c1351c1c03cebc199a88e089
AgentTesla
350d069225cb53bc0c3762da5cc170eac2737318377be141a5485651105914f6
AgentTesla
4c197092877ec4d548bdb4a2fb4284bed16b940e701c3123fba0f25eac00664a
AgentTesla
6e1a37cc8b4d9d0588132c3f315a4e1f7873ddae440c7be61381b12edf74e723
AgentTesla
9544b034c9118e6ba2e0a2491c7ff4a7cb56044b223e400f72cf07ba9e24bf96
AgentTesla
acc15255f543d96b994795164de4cd6b136c2d84d22e13f5a01f12131853a468
AgentTesla
dc6a499c7c08de87d5d986fbaf33a59debbc355d00b04d69f340d6d7c346e98d
AgentTesla
ef91cdf4d2ae2a3dd427b89bf9a2e057ec1f6308aba537b7d808e999bb9815f8
AgentTesla
f52821632c06371b47555998f4c20ac910cddffdf60fda190fc07d6c2ee7acbf
AgentTesla
fa816fa2565bb49b65dbb51bb3a70f87b82437e19c0e7680a6a112fe177f880b
AgentTesla
+ 3'613 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210330-88e7em9ttj/
Behaviour
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
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:
23f395feba9af97086e3c3dee7cde812ad67a31cc151d9285b2fc7b2f926bc4d
MD5 hash:
9125cfe1da99ea9dff55f6a77ba3efb2
SHA1 hash:
f15e537387e7536bce3d6b1b45798590f8004009
Link:
https://www.unpac.me/results/e13fb4fb-1010-423b-9db1-dde76e824838/
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/23f395feba9af97086e3c3dee7cde812ad67a31cc151d9285b2fc7b2f926bc4d

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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.

Malspam

AgentTesla

zip d489f6cddee7c87cbcf59d6b4fd526c6fa5dc9211bdb17f388fd5b8f158c94c1

AgentTesla

Executable exe 23f395feba9af97086e3c3dee7cde812ad67a31cc151d9285b2fc7b2f926bc4d

(this sample)

  
Dropped by
MD5 27bda0fa70a5254af756370059477762
  
Dropped by
SHA256 d489f6cddee7c87cbcf59d6b4fd526c6fa5dc9211bdb17f388fd5b8f158c94c1
  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/127962/

Comments