MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8cb67ee37e7ccd89e8263b6245a842004de8ca49dd5989a017deb110b00569e4. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8cb67ee37e7ccd89e8263b6245a842004de8ca49dd5989a017deb110b00569e4
SHA3-384 hash: a929c609e624a8182228df31551c8b716ac02e76ee42094300a1fdc17c3a53c792e3e89eaedadcaa108bfa2597b0e5ab
SHA1 hash: 26059d397d4832225d759dfc4bbbde0de8f7528d
MD5 hash: e914430129fca2f5ee7374eba7f1cfd4
humanhash: triple-east-minnesota-friend
File name:scan copy.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:31'248 bytes
First seen:2022-05-15 14:54:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 384:G2UWWj+hUVmA700GNV82xJnSj3ge0G3a6ki2/ciBecLhYc:tHWPW0iFnSj3gY312PBpLhn
Threatray 17'203 similar samples on MalwareBazaar
TLSH T1D9E24B69D1450825DF5BED31C3A106203AF45E84EB65ED1F8877BEC22FB3BE11E25429
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 74f0dcccccd4c0d4 (10 x AgentTesla, 6 x RemcosRAT, 5 x BitRAT)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
265
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/270787/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a file
Using the Windows Management Instrumentation requests
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated overlay packed packed
Link:
https://www.filescan.io/uploads/6281141122b733139c1c5478/reports/6cb499ab-b5f1-4937-a3c1-5af0cfcc222b/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/8841b12b-d930-4627-a62c-f2163cf14c1d
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/994339
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Found malware configuration
Injects a PE file into a foreign processes
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 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)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 626835 Sample: scan copy.exe Startdate: 15/05/2022 Architecture: WINDOWS Score: 100 51 api.telegram.org 2->51 65 Found malware configuration 2->65 67 Malicious sample detected (through community Yara rule) 2->67 69 Multi AV Scanner detection for submitted file 2->69 71 6 other signatures 2->71 8 scan copy.exe 16 7 2->8         started        13 Wyujrvjua.exe 14 4 2->13         started        15 Wyujrvjua.exe 3 2->15         started        signatures3 process4 dnsIp5 53 cdn.discordapp.com 162.159.130.233, 443, 49762, 49773 CLOUDFLARENETUS United States 8->53 43 C:\Users\user\AppData\...\Wyujrvjua.exe, PE32 8->43 dropped 45 C:\Users\...\Wyujrvjua.exe:Zone.Identifier, ASCII 8->45 dropped 47 C:\Users\user\AppData\...\scan copy.exe.log, ASCII 8->47 dropped 73 Writes to foreign memory regions 8->73 75 Allocates memory in foreign processes 8->75 77 Injects a PE file into a foreign processes 8->77 17 InstallUtil.exe 14 2 8->17         started        21 cmd.exe 1 8->21         started        55 192.168.2.1 unknown unknown 13->55 79 Multi AV Scanner detection for dropped file 13->79 23 cmd.exe 13->23         started        25 InstallUtil.exe 13->25         started        27 cmd.exe 15->27         started        29 InstallUtil.exe 15->29         started        file6 signatures7 process8 dnsIp9 49 api.telegram.org 149.154.167.220, 443, 49771, 49849 TELEGRAMRU United Kingdom 17->49 57 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->57 59 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->59 61 Tries to steal Mail credentials (via file / registry access) 17->61 63 3 other signatures 17->63 31 conhost.exe 21->31         started        33 timeout.exe 1 21->33         started        35 conhost.exe 23->35         started        37 timeout.exe 23->37         started        39 conhost.exe 27->39         started        41 timeout.exe 27->41         started        signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8cb67ee37e7ccd89e8263b6245a842004de8ca49dd5989a017deb110b00569e4/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-15 14:55:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rs3h5y36ptgyt2bghnrelkccabg6rssj3vmytiax32yrbmafnhsa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
372f3ede21d2dc6c7f2ef29b36a29f8473ddb9d069c5a29cab5d26f9b6f3ecda
AgentTesla
3b35160a0221a2abd530bf26c039844ed986971c906fcb6e6feedb8978d076b8
AgentTesla
848ce511daf9046ab1ab3bed080d5c20bdeb3fd0bebc016fc3af70b892ebb5c9
AgentTesla
8f5d108dd7c8d13e63443215be9a8734b4ff548be201e28f4a990bf120eec2a6
AgentTesla
a2136b933c4487133913d9138887fdca955bb78f9071842a958949112af5e67b
AgentTesla
b7c3b077777303227947d62064fea23a1473f57c07575476e97c92a811b37c46
AgentTesla
d2a15bc37d82c300a6f57910ea624261a5d71a73776d974dccc7c2eb6e62f80b
AgentTesla
+ 17'193 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/220515-r9xcjahdbr/
Behaviour
Delays execution with timeout.exe
Modifies system certificate store
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/bot5351864471:AAGAqiOJqCiUj9zFIqSZeiHPgOb5cf2UkxY/sendDocument
Unpacked files
SH256 hash:
8cb67ee37e7ccd89e8263b6245a842004de8ca49dd5989a017deb110b00569e4
MD5 hash:
e914430129fca2f5ee7374eba7f1cfd4
SHA1 hash:
26059d397d4832225d759dfc4bbbde0de8f7528d
Link:
https://www.unpac.me/results/004612f4-400c-4ba5-8090-487771189699/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8cb67ee37e7c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/8cb67ee37e7ccd89e8263b6245a842004de8ca49dd5989a017deb110b00569e4

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 8cb67ee37e7ccd89e8263b6245a842004de8ca49dd5989a017deb110b00569e4

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/270787/

Comments