MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c25d169ffffb762f002d4f6bfe9fda71abfbc60baec3f1d3d813b81a84af0c26. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c25d169ffffb762f002d4f6bfe9fda71abfbc60baec3f1d3d813b81a84af0c26
SHA3-384 hash: f89fdde7df777fe4f9aed314802cc881ca5adfed6a451faacb3311775c22e40c71c1c4d1a93555de26f487108bdd536b
SHA1 hash: 5f36ebedaa5b50594978d39b85cc98c125d5a0fa
MD5 hash: 3e2315c37ccb0cc931750ffe449df299
humanhash: football-seventeen-spring-item
File name:doc202208060893999100399302000121.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:82'432 bytes
First seen:2022-06-08 11:11:57 UTC
Last seen:2022-06-13 10:05:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 1536:XD4bV7FKfZhMXiHRoaWHdQACnJZOenw/yTRZG9hhG:XD4bVpramd7Ygc
Threatray 18'238 similar samples on MalwareBazaar
TLSH T1F283A3E1C58101A5FAA50F35563B2D7A41BB6EBAFA54B50E984DB4B36F731C32032E07
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon a526627266e5561e (1 x AgentTesla)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
307
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
doc202208060893999100399302000121.exe
Verdict:
Suspicious activity
Analysis date:
2022-06-08 11:15:14 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/cc79f2f6-375e-492d-9425-1fef07d24186

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/277752/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching cmd.exe command interpreter
Creating a process with a hidden window
Forced system process termination
DNS request
Sending a custom TCP request
Running batch commands
Launching a process
Creating a file in the %AppData% subdirectories
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware obfuscated packed remote.exe update.exe
Link:
https://www.filescan.io/uploads/62a084455dc88d35716b5d47/reports/754c0b8b-32cd-4010-8a3e-6bb68a31be5b/overview
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7fd408c1-f970-4ad7-bec5-3bd859d00fec
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1008943
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
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)
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 / registry access)
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 641439 Sample: doc202208060893999100399302... Startdate: 08/06/2022 Architecture: WINDOWS Score: 100 63 api.telegram.org 2->63 81 Malicious sample detected (through community Yara rule) 2->81 83 Multi AV Scanner detection for submitted file 2->83 85 Yara detected AgentTesla 2->85 87 8 other signatures 2->87 8 doc202208060893999100399302000121.exe 16 7 2->8         started        12 Bbzpkkcxn.exe 14 4 2->12         started        15 Bbzpkkcxn.exe 3 2->15         started        signatures3 process4 dnsIp5 65 cdn.discordapp.com 162.159.135.233, 443, 49745, 49820 CLOUDFLARENETUS United States 8->65 55 C:\Users\user\AppData\...\Bbzpkkcxn.exe, PE32 8->55 dropped 57 C:\Users\...\Bbzpkkcxn.exe:Zone.Identifier, ASCII 8->57 dropped 59 doc202208060893999...99302000121.exe.log, ASCII 8->59 dropped 17 InstallUtil.exe 14 2 8->17         started        21 cmd.exe 1 8->21         started        23 cmd.exe 1 8->23         started        67 162.159.134.233, 443, 49819 CLOUDFLARENETUS United States 12->67 89 Multi AV Scanner detection for dropped file 12->89 91 Machine Learning detection for dropped file 12->91 25 InstallUtil.exe 12->25         started        27 cmd.exe 12->27         started        29 cmd.exe 1 12->29         started        31 cmd.exe 15->31         started        33 cmd.exe 15->33         started        35 InstallUtil.exe 15->35         started        file6 signatures7 process8 dnsIp9 61 api.telegram.org 149.154.167.220, 443, 49763, 49870 TELEGRAMRU United Kingdom 17->61 69 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->69 71 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->71 73 Tries to steal Mail credentials (via file / registry access) 17->73 75 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 17->75 37 conhost.exe 21->37         started        39 timeout.exe 1 21->39         started        41 conhost.exe 23->41         started        77 Tries to harvest and steal ftp login credentials 25->77 79 Tries to harvest and steal browser information (history, passwords, etc) 25->79 43 conhost.exe 27->43         started        45 timeout.exe 27->45         started        47 conhost.exe 29->47         started        49 conhost.exe 31->49         started        51 timeout.exe 31->51         started        53 conhost.exe 33->53         started        signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c25d169ffffb762f002d4f6bfe9fda71abfbc60baec3f1d3d813b81a84af0c26/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-06-08 08:55:31 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yjornh777n3c6abnj5v75h62ogv7xrqlv3b7du6yco4bvbfpbqta._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
masslogger
Create hunting rule
Similar samples:
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AgentTesla
+ 18'228 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/220608-nat7cabgg5/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot5310370668:AAEdB2nfvvFj53YoaxJ-AleA2m93WUxxyM0/sendDocument
Unpacked files
SH256 hash:
c25d169ffffb762f002d4f6bfe9fda71abfbc60baec3f1d3d813b81a84af0c26
MD5 hash:
3e2315c37ccb0cc931750ffe449df299
SHA1 hash:
5f36ebedaa5b50594978d39b85cc98c125d5a0fa
Link:
https://www.unpac.me/results/5da8d26b-2184-487a-93e8-f21af86f68ee/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c25d169ffffb/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/c25d169ffffb762f002d4f6bfe9fda71abfbc60baec3f1d3d813b81a84af0c26

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:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information

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

Malspam

AgentTesla

Executable exe c25d169ffffb762f002d4f6bfe9fda71abfbc60baec3f1d3d813b81a84af0c26

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/277752/

Comments