MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 88c5bac09d0109ce1bd43bef1d668613937d2fc83bdc084d02470eac7d2a5850. 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: 18


Intelligence 18 IOCs YARA 21 File information Comments
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SHA256 hash: 88c5bac09d0109ce1bd43bef1d668613937d2fc83bdc084d02470eac7d2a5850
SHA3-384 hash: 9b5f436b16aab943dc4b7f2c60772e7e8a16ca069354c7add3f02702c21ae4ad1f2eb6d7703fcd201e129a1808f5d0fa
SHA1 hash: ff074b3a0a74180834710e59cd639f706e894cb2
MD5 hash: fbb8739bb14e82002390175ad66110c3
humanhash: juliet-william-papa-red
File name:Nowe zamówienie nr 201030019.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:715'784 bytes
First seen:2024-06-13 08:16:28 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 12288:jyyCK2xrOoWXIyeLoV228k1fvwaiuRZkIf/iLEOx+G5+B7No0f3g28AO/kR:GyC5W4qV22hvwCZkIf/gf+GIf3SAF
Threatray 2'835 similar samples on MalwareBazaar
TLSH T169E4226CA2B49F01C3BE57326E60402653F27B1BB9B2D66C6DD130CE2CA9FA54549F43
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter Anonymous
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
442
Origin country :
PL PL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
88c5bac09d0109ce1bd43bef1d668613937d2fc83bdc084d02470eac7d2a5850.exe
Verdict:
Malicious activity
Analysis date:
2024-06-13 08:18:15 UTC
Tags:
evasion smtp exfiltration stealer agenttesla
Link:
https://app.any.run/tasks/f31d6c2e-62c1-48d5-a052-a1a6b4bf0e8d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Dropper.Nanocore-10025638-0
Create hunting rule

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=666aab55da262547655ee05bwin7simulatehigh_evasion
Tags:
Encryption Generic Network Static Gensteal
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process from a recently created file
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/88c5bac09d0109ce1bd43bef1d668613937d2fc83bdc084d02470eac7d2a5850
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.
Malware family:
Agent Tesla
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c9ad38f0-dcdd-4a2b-9392-27899fa59fb2
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1456420
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1456420 Sample: Nowe zam#U00f3wienie nr 201... Startdate: 13/06/2024 Architecture: WINDOWS Score: 100 32 smtp.ionos.es 2->32 34 api.ipify.org 2->34 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 8 other signatures 2->56 7 Nowe zam#U00f3wienie nr 201030019.exe 3 2->7         started        11 fMNDB.exe 3 2->11         started        13 fMNDB.exe 2 2->13         started        signatures3 process4 file5 30 Nowe zam#U00f3wien...r 201030019.exe.log, ASCII 7->30 dropped 58 Injects a PE file into a foreign processes 7->58 15 Nowe zam#U00f3wienie nr 201030019.exe 15 5 7->15         started        20 Nowe zam#U00f3wienie nr 201030019.exe 7->20         started        60 Multi AV Scanner detection for dropped file 11->60 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->62 64 Machine Learning detection for dropped file 11->64 22 fMNDB.exe 14 2 11->22         started        24 fMNDB.exe 2 13->24         started        signatures6 process7 dnsIp8 36 smtp.ionos.es 213.165.67.102, 49711, 49715, 49723 ONEANDONE-ASBrauerstrasse48DE Germany 15->36 38 api.ipify.org 172.67.74.152, 443, 49709, 49714 CLOUDFLARENETUS United States 15->38 26 C:\Users\user\AppData\Roaming\...\fMNDB.exe, PE32 15->26 dropped 28 C:\Users\user\...\fMNDB.exe:Zone.Identifier, ASCII 15->28 dropped 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->40 42 Tries to steal Mail credentials (via file / registry access) 15->42 44 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->44 46 Tries to harvest and steal ftp login credentials 24->46 48 Tries to harvest and steal browser information (history, passwords, etc) 24->48 file9 signatures10
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/88c5bac09d0109ce1bd43bef1d668613937d2fc83bdc084d02470eac7d2a5850
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/88c5bac09d0109ce1bd43bef1d668613937d2fc83bdc084d02470eac7d2a5850/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-06-13 08:17:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
27 of 38 (71.05%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rdc3vqe5aee44g6uhpxr2zugcojx2l6ihpoaqtici4hky7jklbia._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
26c906adae2ca90e5dc8e69c22e017f1c02243c75ff6cca5da7056c6a74efcca
AgentTesla
409b216bb2d2747140b1a05b5cbc9fc8ff21bd1dbe6635a67d1d71a69a92da21
AgentTesla
4945386dd90b6b092bd13414fe19d0a296ce17f0822632a6b6567252f692cef5
AgentTesla
63eac58257e89ae7383cdfcddbf1209d18d9eda53fefe0b5a57de854649499d9
AgentTesla
af6694d1a51a60d7bf11ca63a9af3e749c122490ab8f620921b73f89eb1d9123
AgentTesla
+ 2'825 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/240613-j6pjhsvbqp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
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:
d67867ef93204c27c126a41fa778fcdbf89e34a3750014d8cc4a9394a1300d96
MD5 hash:
cfddc0c2c035e91ecc76782ff513e30a
SHA1 hash:
efd2f376cd2a3574240be6b03c563f42630a6ef7
Link:
https://www.unpac.me/results/8d267e2d-02d4-47b8-a1cc-ed7881504727/
Parent samples :
82cbe9fc57abd337a5bf0d0d478ae7fb9158987c1d7c5006b20e309c06329ae8
804aee8eba800043c912038c55c36edeb8dd761913047e99b4a5e8d8cb8ef6c4
SH256 hash:
327a4fa318c665120491757aa3c223796290e4f9cfdf739b6552fe0bf29e781c
MD5 hash:
d0669f4adea9441b5d63596b7975fa07
SHA1 hash:
cbf28d093d87f9c7ddd5d134a16b4fdad3dd7da7
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/8d267e2d-02d4-47b8-a1cc-ed7881504727/
SH256 hash:
4e9970617c262d3f192a8dc8be944d37fde378c6f16132316a908a2d56440ca6
MD5 hash:
e555128aa5b49ec6117e7c244b153c93
SHA1 hash:
b8e119d0873180a87f1046e25f31accad8d578e6
Link:
https://www.unpac.me/results/8d267e2d-02d4-47b8-a1cc-ed7881504727/
SH256 hash:
29122a60ca95fbb59606ec4b2b99e0f3b13587eea18a8336dd0f228d94e17ec3
MD5 hash:
0f8802789579e33a4da3bf68fdeb1a55
SHA1 hash:
78ffc85a997c0b908466d1a66af7710016c3fe32
Link:
https://www.unpac.me/results/8d267e2d-02d4-47b8-a1cc-ed7881504727/
SH256 hash:
88c5bac09d0109ce1bd43bef1d668613937d2fc83bdc084d02470eac7d2a5850
MD5 hash:
fbb8739bb14e82002390175ad66110c3
SHA1 hash:
ff074b3a0a74180834710e59cd639f706e894cb2
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Link:
https://www.unpac.me/results/8d267e2d-02d4-47b8-a1cc-ed7881504727/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/88c5bac09d01/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/88c5bac09d0109ce1bd43bef1d668613937d2fc83bdc084d02470eac7d2a5850

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_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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