MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc. 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: 17


Intelligence 17 IOCs YARA 18 File information Comments
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SHA256 hash: 48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc
SHA3-384 hash: fcf8211ffc0d5f3e5ab2dd519a0b57b4008bdf247784c154dcb4ce161550c6cb1a1706e55222173eae79b050314df518
SHA1 hash: e640cc86dfed0419775c394ed050674667ed8b2e
MD5 hash: 2e11cbc359b45e25b7f5f3b6008f3adc
humanhash: nitrogen-diet-utah-blue
File name:RFQ-2402-3572.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:722'944 bytes
First seen:2024-06-06 14:23:20 UTC
Last seen:2024-06-08 07:51:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:r3qyJMIC222lCz/mh/otW1AmPCLHmR895zB8DSSAwlDJyhy3KJx:r6Oo222Y7mh/BKm6vDF8+S/GhgKL
Threatray 1'350 similar samples on MalwareBazaar
TLSH T186F41284A6A94A02D4BD83F9059410415F3936260E22CB59DEC279EE5F36BC0DB5FF2B
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 31f0d4b2b2f0e871 (10 x AgentTesla, 8 x Formbook, 3 x Loki)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
340
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc.exe
Verdict:
Malicious activity
Analysis date:
2024-06-06 14:26:57 UTC
Tags:
evasion stealer agenttesla exfiltration smtp
Link:
https://app.any.run/tasks/938dba1e-0716-4c87-84fb-d84a6c41cd50

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Rogue.0hr.20240605-0842.UNOFFICIAL
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Win.Packed.Pwsx-10031556-0
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Win.Packed.Generic-10031557-0
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Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/173bd8f7-4c9c-4849-a405-4a5c8fc6f936
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1453073
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
Snort IDS alert for network traffic
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: 1453073 Sample: RFQ-2402-3572.exe Startdate: 06/06/2024 Architecture: WINDOWS Score: 100 34 psgrasa.ir 2->34 36 mail.psgrasa.ir 2->36 38 api.ipify.org 2->38 56 Snort IDS alert for network traffic 2->56 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 11 other signatures 2->62 7 RFQ-2402-3572.exe 3 2->7         started        11 YxAesh.exe 3 2->11         started        13 YxAesh.exe 2 2->13         started        signatures3 process4 file5 32 C:\Users\user\...\RFQ-2402-3572.exe.log, ASCII 7->32 dropped 64 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->64 66 Injects a PE file into a foreign processes 7->66 15 RFQ-2402-3572.exe 15 5 7->15         started        20 RFQ-2402-3572.exe 7->20         started        22 RFQ-2402-3572.exe 7->22         started        68 Antivirus detection for dropped file 11->68 70 Multi AV Scanner detection for dropped file 11->70 72 Machine Learning detection for dropped file 11->72 24 YxAesh.exe 14 2 11->24         started        26 YxAesh.exe 13->26         started        signatures6 process7 dnsIp8 40 psgrasa.ir 185.10.73.42, 49710, 49714, 49719 IRANHOST-ASIR Iran (ISLAMIC Republic Of) 15->40 42 api.ipify.org 104.26.12.205, 443, 49708, 49713 CLOUDFLARENETUS United States 15->42 28 C:\Users\user\AppData\Roaming\...\YxAesh.exe, PE32 15->28 dropped 30 C:\Users\user\...\YxAesh.exe:Zone.Identifier, ASCII 15->30 dropped 44 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->44 46 Tries to steal Mail credentials (via file / registry access) 15->46 48 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->48 50 Tries to harvest and steal ftp login credentials 26->50 52 Tries to harvest and steal browser information (history, passwords, etc) 26->52 54 Installs a global keyboard hook 26->54 file9 signatures10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-06-05 06:09:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
28 of 38 (73.68%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jddtce2bv4a57jgqdvqab6yx22kw2zqh6jyuxoelxixyzifjh66a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
113e56cc0bb3dca13bf13c0e47a25b102b4f8e7af8b156fc7e6fcd76ba40c8ff
AgentTesla
38e489b3b0448d613fdcffe6c1aa9119c4d305cc8f0e7b56c915abcdac07bba2
AgentTesla
3c4a6a16a5d8679e83400b100265e0513f5993e513d5f17c875976b09cd1bf25
AgentTesla
f2e1790a36ac95e802bdac123aede4a277b2a7da39ea9b6e399f9545dac51a50
AgentTesla
+ 1'340 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/240606-rqphksgc76/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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:
233f985f4c2523e82c58ab2c102022259c2dbf17739ad0eafbfb4bfabb2fe352
MD5 hash:
52f6cab8482bd727324bbd5d0d94d74f
SHA1 hash:
d361b6948f2b565588cada62f6c239ad27a19e4e
Link:
https://www.unpac.me/results/5847fff6-8125-4764-83eb-287fe5cafdbc/
SH256 hash:
b3dcf1a08b32e8cf4a59785a0a5fa42b450270d47a5640af6b0daeed2b189c0a
MD5 hash:
3f42c221d1e94609b576ba34b8e8d51f
SHA1 hash:
af3f34b2ac1e0e9e12e8f97d6a856a6040ba9f81
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/5847fff6-8125-4764-83eb-287fe5cafdbc/
Parent samples :
b43813d1e597a0633fc8693d5921688a8b189cfdc6c74fda22e42c2aefa3270c
48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc
SH256 hash:
c33f4dd8ddce7fcbaaf1c3db97943ce68eff43fcad18776ca9286217899355d3
MD5 hash:
64470392c6d2f3baa829fe148dfdf56c
SHA1 hash:
8fb5b344ff22142bcc58dd68fd768f2abfc013d3
Link:
https://www.unpac.me/results/5847fff6-8125-4764-83eb-287fe5cafdbc/
SH256 hash:
55729815a6ad44739f2af0c7a7096f4153fcc109d440f23d0d609065e96b625e
MD5 hash:
82a8fdab718d8d9c1c82472293a72e3d
SHA1 hash:
042c0d08baf858128d32c01476380e142891456e
Link:
https://www.unpac.me/results/5847fff6-8125-4764-83eb-287fe5cafdbc/
SH256 hash:
48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc
MD5 hash:
2e11cbc359b45e25b7f5f3b6008f3adc
SHA1 hash:
e640cc86dfed0419775c394ed050674667ed8b2e
Link:
https://www.unpac.me/results/5847fff6-8125-4764-83eb-287fe5cafdbc/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/48c7311341af/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/48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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.

Malspam

AgentTesla

rar da9219415bcb66e4048ce23c6f94a3bfc29b0576fd3d30c7b47f6835efcd9ad4

AgentTesla

Executable exe 48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc

(this sample)

  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 da9219415bcb66e4048ce23c6f94a3bfc29b0576fd3d30c7b47f6835efcd9ad4
  
Dropped by
MD5 0b0b8f1b9ba09ae894e0a58eed1131b5

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