MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77e81778ac192589a26dc35e0d24e3ba813a833dae62951094e5ec0251be844a. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 77e81778ac192589a26dc35e0d24e3ba813a833dae62951094e5ec0251be844a
SHA3-384 hash: 58b1561f56a15a2a65e92e52bf89c053d615a7d1221b2c3318c4b55a08ea2671cb93dcd43ad37e671c43c7e288e49e75
SHA1 hash: 1d3eacb9fc3e08a1352563c2a8f3832e413be886
MD5 hash: d1c529fabf4e775b5567e388248dffd6
humanhash: utah-carpet-four-sad
File name:Factuur beheerskosten.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:647'168 bytes
First seen:2023-11-16 15:29:13 UTC
Last seen:2023-11-16 17:25:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:YgNuPI1w9QcdMsefAptXJNSpviknHdueqQRyu3mvqYKhPpQkNdPyL3:9Y+w9tefAptXJNS79u6RCv6PdXaL
Threatray 1'407 similar samples on MalwareBazaar
TLSH T10ED41240B6AFCF4AC97E67F4085252001771A8A77637E70DEE85A1D69633B819E21F33
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) (4505/5/1)
Reporter cocaman
Tags:AgentTesla exe QUOTATION

Intelligence

File Origin
# of uploads :
2
# of downloads :
388
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Factuur beheerskosten.exe
Verdict:
Malicious activity
Analysis date:
2023-11-16 15:30:00 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/dd78d867-10ab-4ad4-8a5f-5a3b36095f6e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/458856/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6556357d685479e3292e59b3/reports/3f36c4ea-bcaf-47a4-9107-cc27761b73aa/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/77e81778ac192589a26dc35e0d24e3ba813a833dae62951094e5ec0251be844a
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/c4de985e-a6b6-420b-b9f3-f65e082a8a4d
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1343685
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
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
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: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1343685 Sample: Factuur_beheerskosten.exe Startdate: 16/11/2023 Architecture: WINDOWS Score: 100 59 mail.premiermotor.com.bn 2->59 61 premiermotor.com.bn 2->61 63 2 other IPs or domains 2->63 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 Sigma detected: Scheduled temp file as task from temp location 2->73 75 7 other signatures 2->75 8 Factuur_beheerskosten.exe 7 2->8         started        12 ZlGwuuxZfhRp.exe 5 2->12         started        14 HqAJrII.exe 2->14         started        16 HqAJrII.exe 2->16         started        signatures3 process4 file5 55 C:\Users\user\AppData\...\ZlGwuuxZfhRp.exe, PE32 8->55 dropped 57 C:\Users\user\AppData\Local\...\tmpCA1C.tmp, XML 8->57 dropped 85 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->85 87 Uses schtasks.exe or at.exe to add and modify task schedules 8->87 89 Adds a directory exclusion to Windows Defender 8->89 18 Factuur_beheerskosten.exe 16 5 8->18         started        23 powershell.exe 23 8->23         started        25 powershell.exe 23 8->25         started        27 schtasks.exe 1 8->27         started        91 Multi AV Scanner detection for dropped file 12->91 93 Injects a PE file into a foreign processes 12->93 29 ZlGwuuxZfhRp.exe 12->29         started        31 schtasks.exe 12->31         started        33 HqAJrII.exe 14->33         started        35 schtasks.exe 14->35         started        37 2 other processes 16->37 signatures6 process7 dnsIp8 65 api4.ipify.org 173.231.16.77, 443, 49708, 49711 WEBNXUS United States 18->65 67 premiermotor.com.bn 103.72.163.183, 49712, 49719, 49722 GBNETWORK-AS-APGBNetworkSolutionsSdnBhdMY Malaysia 18->67 51 C:\Users\user\AppData\Roaming\...\HqAJrII.exe, PE32 18->51 dropped 53 C:\Users\user\...\HqAJrII.exe:Zone.Identifier, ASCII 18->53 dropped 77 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->77 79 Tries to steal Mail credentials (via file / registry access) 18->79 81 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->81 39 conhost.exe 23->39         started        41 conhost.exe 25->41         started        43 conhost.exe 27->43         started        45 conhost.exe 31->45         started        83 Tries to harvest and steal browser information (history, passwords, etc) 33->83 47 conhost.exe 35->47         started        49 conhost.exe 37->49         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/77e81778ac192589a26dc35e0d24e3ba813a833dae62951094e5ec0251be844a
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/77e81778ac192589a26dc35e0d24e3ba813a833dae62951094e5ec0251be844a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-15 10:54:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o7ubo6fmdesytitnynpa2jhdxkatvaz5vzrjkeeu4xwaeun6qrfa._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
66fc227615863dc5d6d327380c0dbb43cd00872f2e13fc665d3f47b7fd610129
AgentTesla
77e81778ac192589a26dc35e0d24e3ba813a833dae62951094e5ec0251be844a
AgentTesla
79b5b0596a21d1d0642a64198c45d8662e9eede03347ce5f50eaac73f31c32e7
AgentTesla
c49d3c572cd0b818ced382d46198cd833015f79459b10e2cb4caee1bd18f5e72
AgentTesla
e91cf26515765666426d2e5080294002b848bcf377328b39f636a08de5b6018c
AgentTesla
ff804c59e3c5f8870dccbbbbcc63f1680156c5f336edd727dbd3f878d99447e9
AgentTesla
+ 1'397 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/231116-sxf1fscf86/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
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:
6aa2b706c583388e444b84c9bb6f537b8cbedb445a452ab239282d1f8f9b9b5c
MD5 hash:
6c6f7b77b0c8b91e21e5393c264e373c
SHA1 hash:
ddb789d0c77bcb63440ee451e57bae6948b77f96
Detections:
Agenttesla_type2
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Link:
https://www.unpac.me/results/6cda7c89-0e34-4a27-ab94-e8b8cbe7e7f1/
Parent samples :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 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/6cda7c89-0e34-4a27-ab94-e8b8cbe7e7f1/
SH256 hash:
76482f1dc9b0639dd6b2d762e09101875e207e8c60e146a43ca182a4c13d6afa
MD5 hash:
9561bc00330bfa400784c1b3b2075d0b
SHA1 hash:
b98f0014f428085dea5ea44108d64d9119e3d698
Link:
https://www.unpac.me/results/6cda7c89-0e34-4a27-ab94-e8b8cbe7e7f1/
SH256 hash:
30648e81b01937a3a03d6d4470e712d8e553700f76a115507e0cd647ee7c7a03
MD5 hash:
5eede7b5b735f6c9f5dffe2b8b8c2e7a
SHA1 hash:
049e48ecf45135d1d12cc98687ed74e133c30835
Link:
https://www.unpac.me/results/6cda7c89-0e34-4a27-ab94-e8b8cbe7e7f1/
SH256 hash:
77e81778ac192589a26dc35e0d24e3ba813a833dae62951094e5ec0251be844a
MD5 hash:
d1c529fabf4e775b5567e388248dffd6
SHA1 hash:
1d3eacb9fc3e08a1352563c2a8f3832e413be886
Link:
https://www.unpac.me/results/6cda7c89-0e34-4a27-ab94-e8b8cbe7e7f1/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/77e81778ac19/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/77e81778ac192589a26dc35e0d24e3ba813a833dae62951094e5ec0251be844a

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
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

File information

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

Malspam

AgentTesla

zip f8728c3c4d603adb62e2d7eb9e622839abdd033f7c0404d5a21cd02a9a7cde76

AgentTesla

Executable exe 77e81778ac192589a26dc35e0d24e3ba813a833dae62951094e5ec0251be844a

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 f8728c3c4d603adb62e2d7eb9e622839abdd033f7c0404d5a21cd02a9a7cde76
Cape
Cape
https://www.capesandbox.com/analysis/458856/
  
Dropped by
MD5 f657bc6b25f27859a5f69be87ff4b85e

Comments