MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bb62ab2391b4c5b5105b8d6928ae76bc52f25615310737967e2210b7028778e5. 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

SHA256 hash: bb62ab2391b4c5b5105b8d6928ae76bc52f25615310737967e2210b7028778e5
SHA3-384 hash: 1810e1faa91b977a9d9e6bd41458075ad094152b45b81229df5083a7098e0a8c4f4919de67b21323aa685c0bc0251f11
SHA1 hash: 2ab15389590b9ca825d1a1d2d33c2914ef2b2463
MD5 hash: abe1131ea1f257f57679b17c9dd6a679
humanhash: alpha-twenty-lactose-twenty
File name:Siparis. #PO000867000960 AZTEK Order _ BIRLESIM NEKS A.s 14.05.2024 .exe
Download: download sample
Signature AgentTesla
File size:752'640 bytes
First seen:2024-05-14 07:32:32 UTC
Last seen:2024-05-14 08:31:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:W0CYMjhvPie/rByY7777777777777XoCQK0w/jlOyQ89EhIiBKr4ZIMkwapZ89vq:1CYMFniyy3VK0wRcvhLBKrRAsZE43OUX
TLSH T10AF4020032386A63E6BE92F6025560335BF51D96A265F7D42CC97CC77AEFBC44108AE7
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)
File icon (PE):PE icon
dhash icon 98186169696b338a (6 x AgentTesla, 5 x Formbook, 1 x RemcosRAT)
Reporter abuse_ch
Tags:AgentTesla exe geo TUR

Intelligence


File Origin
# of uploads :
2
# of downloads :
343
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
bb62ab2391b4c5b5105b8d6928ae76bc52f25615310737967e2210b7028778e5.exe
Verdict:
Malicious activity
Analysis date:
2024-05-14 07:59:03 UTC
Tags:
stealer agenttesla exfiltration

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Setting a keyboard event handler
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
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.
Result
Threat name:
AgentTesla, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Loading BitLocker PowerShell Module
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)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1441099 Sample: Siparis. #PO000867000960 AZ... Startdate: 14/05/2024 Architecture: WINDOWS Score: 100 40 mail.adgumrukmusavirligi.com 2->40 42 adgumrukmusavirligi.com 2->42 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 14 other signatures 2->62 8 Siparis. #PO000867000960 AZTEK Order _ BIRLESIM NEKS A.s 14.05.2024 .exe 4 2->8         started        11 skyT.exe 3 2->11         started        13 skyT.exe 2->13         started        signatures3 process4 signatures5 64 Adds a directory exclusion to Windows Defender 8->64 66 Injects a PE file into a foreign processes 8->66 15 Siparis. #PO000867000960 AZTEK Order _ BIRLESIM NEKS A.s 14.05.2024 .exe 1 5 8->15         started        20 powershell.exe 23 8->20         started        22 Siparis. #PO000867000960 AZTEK Order _ BIRLESIM NEKS A.s 14.05.2024 .exe 8->22         started        24 Siparis. #PO000867000960 AZTEK Order _ BIRLESIM NEKS A.s 14.05.2024 .exe 8->24         started        68 Antivirus detection for dropped file 11->68 70 Multi AV Scanner detection for dropped file 11->70 72 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->72 74 2 other signatures 11->74 26 skyT.exe 2 11->26         started        28 skyT.exe 13->28         started        30 skyT.exe 13->30         started        process6 dnsIp7 44 adgumrukmusavirligi.com 94.199.206.42, 49727, 587 AEROTEK-ASTR Turkey 15->44 36 C:\Users\user\AppData\Roaming\skyT\skyT.exe, PE32 15->36 dropped 38 C:\Users\user\...\skyT.exe:Zone.Identifier, ASCII 15->38 dropped 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 Installs a global keyboard hook 15->50 52 Loading BitLocker PowerShell Module 20->52 32 WmiPrvSE.exe 20->32         started        34 conhost.exe 20->34         started        54 Tries to harvest and steal browser information (history, passwords, etc) 28->54 file8 signatures9 process10
Threat name:
Win32.Trojan.GenSteal
Status:
Malicious
First seen:
2024-05-14 07:33:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla execution keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
AgentTesla
Unpacked files
SH256 hash:
8d27137e18f5b58e7a4fbd68baaaca8eda617b829c83a253deba0121f1d4e853
MD5 hash:
a876e53aef2279ced5e7031a4823e540
SHA1 hash:
ef8ec03709fd0c6fcd670df114061cc8c2e99a20
SH256 hash:
fd3f1f3f0c984361bb23b2f6ba22a4bbd636095bf6e9d0c31d77b5ccfceed307
MD5 hash:
1e504d0d93436a776666cc8236d65844
SHA1 hash:
834490f9be03a0814c6460f5aae33af12e83b8f5
SH256 hash:
ba3bf02ebbe2a57d698ee2f46f90c2ce3432427502274fa9fa158d218b846126
MD5 hash:
d992fd3f40226173c5b9694ae95737ad
SHA1 hash:
52f41686022e529cf1df6c3c1767fa60603a4f42
Detections:
AgentTesla win_agent_tesla_g2 INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Agenttesla_type2 INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients INDICATOR_EXE_Packed_GEN01 INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
SH256 hash:
3efb7fb53197e84ea3f27fde2896b0a6b562a48d5aa9718d73cec6a0048570ea
MD5 hash:
0d7bcedec3900018cfcaa66dbeabb2a8
SHA1 hash:
2a52f9f9c10ed457ae29e26e0c22dd017fa7dced
SH256 hash:
d7d9061c604387a231802e8c76f823444531bc5c8c67215c583aa20dd1aa6fe5
MD5 hash:
eedfe4ea6f6d5645eb254493e38c9caf
SHA1 hash:
1647f9208a9a994cb1c20ea3cfa91f5472803a05
SH256 hash:
bb62ab2391b4c5b5105b8d6928ae76bc52f25615310737967e2210b7028778e5
MD5 hash:
abe1131ea1f257f57679b17c9dd6a679
SHA1 hash:
2ab15389590b9ca825d1a1d2d33c2914ef2b2463
Malware family:
AgentTesla
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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
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
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Generic_Threat_9f4a80b2
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
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

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