MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 945a58904c4e277f5e24b02038a8ead79d51e25ce43aff2c1206f22cacce9bf2. 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: 15


Intelligence 15 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 945a58904c4e277f5e24b02038a8ead79d51e25ce43aff2c1206f22cacce9bf2
SHA3-384 hash: 16c627d748b21929f9d25c8fd694678389ea0b6d88bf6efecfe738948458f2d278ff7f203adf37d302e6488844508ed2
SHA1 hash: 2f5b4e9f35b5fb3fdf075973dd0079c6463b1214
MD5 hash: 67231c5b361838c31a9c835ceae8a4a9
humanhash: helium-five-magazine-september
File name:945a58904c4e277f5e24b02038a8ead79d51e25ce43aff2c1206f22cacce9bf2
Download: download sample
Signature AgentTesla
Create hunting rule
File size:251'392 bytes
First seen:2024-05-09 11:57:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 3072:f92dfrvzvUeZzKWM1kN51XNfrtEeCjKh354y2lWQD:f9EfrvzvUeZOWM1kdfhtC+j24
Threatray 4'330 similar samples on MalwareBazaar
TLSH T17934FD037E48EB15E5A83D3782EF6C2413B2B0C71773860F6F49AEA51451682AD7E72D
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
338
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
945a58904c4e277f5e24b02038a8ead79d51e25ce43aff2c1206f22cacce9bf2.exe
Verdict:
Malicious activity
Analysis date:
2024-05-09 12:02:37 UTC
Tags:
evasion smtp
Link:
https://app.any.run/tasks/2fe349ab-22fa-4913-9c8f-0ce7f78284bc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Msilperseus-9956591-0
Create hunting rule

Win.Packed.Generic-10003641-0
Create hunting rule

Win.Packed.Generic-10011753-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
90%
Tags:
agenttesla anti-vm evasive hacktool hook keylogger lolbin remote stealer
Link:
https://www.filescan.io/uploads/663cba4d54aa07c307f20733/reports/c3ef403d-5148-4e8c-9c18-fc726a55a447/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/945a58904c4e277f5e24b02038a8ead79d51e25ce43aff2c1206f22cacce9bf2
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a7477cb9-aa1c-4076-bdee-93732a25d19c
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1438921
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Contains functionality to register a low level keyboard hook
Found malware configuration
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1438921 Sample: iTTvQP5OAt.exe Startdate: 09/05/2024 Architecture: WINDOWS Score: 100 19 mail.ykqatar.com 2->19 21 ykqatar.com 2->21 23 api.ipify.org 2->23 29 Found malware configuration 2->29 31 Malicious sample detected (through community Yara rule) 2->31 33 Antivirus / Scanner detection for submitted sample 2->33 35 4 other signatures 2->35 6 iTTvQP5OAt.exe 16 5 2->6         started        11 newapp.exe 14 2 2->11         started        13 newapp.exe 2 2->13         started        signatures3 process4 dnsIp5 25 api.ipify.org 104.26.12.205, 443, 49704, 49707 CLOUDFLARENETUS United States 6->25 27 ykqatar.com 68.66.216.41, 49705, 49706, 49708 A2HOSTINGUS United States 6->27 15 C:\Users\user\AppData\Roaming\...\newapp.exe, PE32 6->15 dropped 17 C:\Users\user\...\newapp.exe:Zone.Identifier, ASCII 6->17 dropped 37 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 6->37 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->39 41 Tries to steal Mail credentials (via file / registry access) 6->41 55 2 other signatures 6->55 43 Antivirus detection for dropped file 11->43 45 Multi AV Scanner detection for dropped file 11->45 47 Machine Learning detection for dropped file 11->47 49 Tries to harvest and steal ftp login credentials 13->49 51 Tries to harvest and steal browser information (history, passwords, etc) 13->51 53 Installs a global keyboard hook 13->53 file6 signatures7
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/945a58904c4e277f5e24b02038a8ead79d51e25ce43aff2c1206f22cacce9bf2
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/945a58904c4e277f5e24b02038a8ead79d51e25ce43aff2c1206f22cacce9bf2/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-04-29 00:49:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=srnfrecmjytx6xrewaqdrkhk26ovdys44q5p6lasa3zczlgotpza._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
156b52e0e48ed7200245061b2acdf546b19e137007a92786d6187525e89f65ed
AgentTesla
2742c2cc169aa58abe64a0b3786c4ad004f60369056eac7a5acccc1d3ff67c0e
AgentTesla
84027098239c95b6ab961516849dac72bb2fc95fcf30b4172c17df971732edd1
AgentTesla
84ad4f389663e34abf3a0b0e35838ee4dcc90c3e679e15d488999fb4f1f1ac2c
AgentTesla
a3fc7377d62b44533ae2f56fcbe3ce43946b03acb10ca73f47574ebc833e2494
AgentTesla
+ 4'320 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/240509-n46ggaba87/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Adds Run key to start application
Looks up external IP address via web service
Reads WinSCP keys stored on the system
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:
945a58904c4e277f5e24b02038a8ead79d51e25ce43aff2c1206f22cacce9bf2
MD5 hash:
67231c5b361838c31a9c835ceae8a4a9
SHA1 hash:
2f5b4e9f35b5fb3fdf075973dd0079c6463b1214
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/f38b86c5-5155-4ffc-adb2-28eb160d1a0e/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/945a58904c4e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/945a58904c4e277f5e24b02038a8ead79d51e25ce43aff2c1206f22cacce9bf2

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information

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

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments