MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bbf55f2b22413278c79a20912166b13f8dc086e13ab250c1d7265ca6cd09b2af. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bbf55f2b22413278c79a20912166b13f8dc086e13ab250c1d7265ca6cd09b2af
SHA3-384 hash: 35eaad946f693ded359236b9331bf61734c2724220c97f59b51cc7884441b811a0d5c947f95f119f4f681cc680b79d3f
SHA1 hash: 4db2ddfe63ec149abbe78c4fc6fe2a91da191cf0
MD5 hash: 51a99f8293876d876c5c4b5a16364ce8
humanhash: beer-charlie-diet-spring
File name:LOI DFT-DTB REF EPHCOP28402EHS4Q REF ARAMCO 11082023-PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:8'638'480 bytes
First seen:2023-11-09 11:12:08 UTC
Last seen:2023-11-13 08:35:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash fd4858350aebb518210521a885012543 (1 x AgentTesla)
ssdeep 98304:Ex8k/KhP9Led0SL6LyVeP/1iwZXayHsAYTm:9kYP9SySL6LfP/1iOUm
TLSH T1B9968DE722D91BD9C01BE574C312FE3FC6AFB43A0B21E69B4255E2255E23C45BE19B04
TrID 48.7% (.EXE) Win64 Executable (generic) (10523/12/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
282
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Infected 1.zip
Verdict:
No threats detected
Analysis date:
2023-11-09 14:12:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4b6ebc1d-d7ab-4cc0-bf3c-f24e43a055d8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win64.PWSX-gen.29500.5879.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control hacktool lolbin packed themidawinlicense
Link:
https://www.filescan.io/uploads/654cbed7641154c7e3f00066/reports/92c3ce72-c46e-4bb1-978f-6de0ddd2f1b1/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/bbf55f2b22413278c79a20912166b13f8dc086e13ab250c1d7265ca6cd09b2af
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/4e839783-3128-41c6-8ae0-8169b6f55a5f
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1339635
Signature
Allocates memory in foreign processes
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Query firmware table information (likely to detect VMs)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to harvest and steal browser information (history, passwords, etc)
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 Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1339635 Sample: LOI_DFT-DTB_REF_EPHCOP28402... Startdate: 09/11/2023 Architecture: WINDOWS Score: 100 27 api4.ipify.org 2->27 29 api.telegram.org 2->29 31 api.ipify.org 2->31 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 4 other signatures 2->53 7 LOI_DFT-DTB_REF_EPHCOP28402EHS4Q_REF_ARAMCO_11082023-PDF.exe 2->7         started        10 btCUxw.exe 2 2->10         started        12 btCUxw.exe 1 2->12         started        signatures3 process4 signatures5 55 Query firmware table information (likely to detect VMs) 7->55 57 Writes to foreign memory regions 7->57 59 Allocates memory in foreign processes 7->59 61 3 other signatures 7->61 14 CasPol.exe 16 6 7->14         started        19 CasPol.exe 7->19         started        21 conhost.exe 10->21         started        23 conhost.exe 12->23         started        process6 dnsIp7 33 api4.ipify.org 64.185.227.156, 443, 49706 WEBNXUS United States 14->33 35 api.telegram.org 149.154.167.220, 443, 49707, 49708 TELEGRAMRU United Kingdom 14->35 25 C:\Users\user\AppData\Roaming\...\btCUxw.exe, PE32 14->25 dropped 37 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->37 39 Tries to steal Mail credentials (via file / registry access) 14->39 41 Tries to harvest and steal browser information (history, passwords, etc) 14->41 43 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->43 45 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->45 file8 signatures9
Score:
76%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bbf55f2b22413278c79a20912166b13f8dc086e13ab250c1d7265ca6cd09b2af
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bbf55f2b22413278c79a20912166b13f8dc086e13ab250c1d7265ca6cd09b2af/
Threat name:
Win64.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2023-11-08 05:29:57 UTC
File Type:
PE+ (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xp2v6kzciezhrr42ecisczvrh6g4bbxbhkzfbqoxezokntijwkxq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla evasion keylogger persistence spyware stealer themida trojan
Link:
https://tria.ge/reports/231109-nbes2sha5y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Looks up external IP address via web service
Checks BIOS information in registry
Themida packer
Identifies VirtualBox via ACPI registry values (likely anti-VM)
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot6315817429:AAFaWPzyMaqv9eNDTnmSVnPVr3Lwrh4mzqw/
Unpacked files
SH256 hash:
bbf55f2b22413278c79a20912166b13f8dc086e13ab250c1d7265ca6cd09b2af
MD5 hash:
51a99f8293876d876c5c4b5a16364ce8
SHA1 hash:
4db2ddfe63ec149abbe78c4fc6fe2a91da191cf0
Link:
https://www.unpac.me/results/f0381514-02e4-45ff-b509-086b2ee78ae5/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bbf55f2b2241/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/bbf55f2b22413278c79a20912166b13f8dc086e13ab250c1d7265ca6cd09b2af

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_EXE_Packed_Themida
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Themida
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Malspam

AgentTesla

Executable exe bbf55f2b22413278c79a20912166b13f8dc086e13ab250c1d7265ca6cd09b2af

(this sample)

  
Delivery method
Distributed via e-mail attachment

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