MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b9f9fc739dfb6d59c22f7b0ee4134f404ae4faaea7b01896363a657f6db3643. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3b9f9fc739dfb6d59c22f7b0ee4134f404ae4faaea7b01896363a657f6db3643
SHA3-384 hash: 2133eb8471d57c95c73386caa338232096a1cf940be03a5f363af361dc1391bb75f7224067e1892a0af5a0976022a7e5
SHA1 hash: 00bd435e2c1289ffbf86f2bd9c32655fa8848dc9
MD5 hash: fb0195df69de20a72d5cae1db21c3edf
humanhash: lima-music-green-oven
File name:Uruguay Trade Group-PO 81368-71 pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:528'968 bytes
First seen:2023-12-19 07:07:21 UTC
Last seen:2023-12-19 08:17:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:lYa61RcWX30n/A7YtMEUrbmmbA8FiaBEHgl3XmU4A9PAwlrxBBv+NinEcz96+cl2:lYLCWX38hu9mm1Fiat/4a4sIyLz96+02
TLSH T11EB439C3F444348DF8DE827BB99A8E26E1D61D5E0D43190192713F50BFEEA8297C4A6D
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d4903292e2ccb4c0 (13 x Formbook, 8 x AgentTesla, 4 x NanoCore)
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
295
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/468405/
Detection(s):
Sanesecurity.Malware.28885.BadCo.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Using the Windows Management Instrumentation requests
Reading critical registry keys
DNS request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control infostealer installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/65814156ffafd83ebc9484ff/reports/58fef4f4-cbf0-4d6a-b805-9a8db6b33604/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/3b9f9fc739dfb6d59c22f7b0ee4134f404ae4faaea7b01896363a657f6db3643
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/fd6bdb87-7aa4-44b3-8176-b1e0284f3fc7
Result
Threat name:
AgentTesla, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1364338
Signature
Antivirus / Scanner detection for submitted sample
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Maps a DLL or memory area into another process
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)
Sample uses string decryption to hide its real strings
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)
Yara detected AgentTesla
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3b9f9fc739dfb6d59c22f7b0ee4134f404ae4faaea7b01896363a657f6db3643
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3b9f9fc739dfb6d59c22f7b0ee4134f404ae4faaea7b01896363a657f6db3643/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-03-27 22:30:34 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 23 (86.96%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hopz7rzz363nlhbc66yo4qju6qck4t5k5j5qdcldmotfp5w3gzbq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/231219-hx74tsfbdk/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Executes dropped EXE
Loads dropped DLL
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:
8a64ea800ef80915789bf32b8b8eafc64479703d8d7869b9abdd05fda141586c
MD5 hash:
ea87d4c7f6c350329ffc9decd64a946e
SHA1 hash:
e8f62cd93caec8098abdaa1270dcb17cb1ffbb0b
Detections:
MSIL_SUSP_OBFUSC_XorStringsNet
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
Link:
https://www.unpac.me/results/42425316-54f5-4e8f-8ee5-dbab6ad16eaf/
SH256 hash:
25b48fdd1689bbd595121ec0066b4c9c5318e1acc84d018c4707c8fe33b34874
MD5 hash:
fef368729eb2abbf1f370b34ae1d5cef
SHA1 hash:
754f04a658d8f9ff552cd1ea26396d15244e5510
Detections:
AgentTeslaXorStringsNet
Create hunting rule
MSIL_SUSP_OBFUSC_XorStringsNet
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
Link:
https://www.unpac.me/results/42425316-54f5-4e8f-8ee5-dbab6ad16eaf/
Parent samples :
25b48fdd1689bbd595121ec0066b4c9c5318e1acc84d018c4707c8fe33b34874
3b9f9fc739dfb6d59c22f7b0ee4134f404ae4faaea7b01896363a657f6db3643
SH256 hash:
185db4c1b84b08be597f2e73564efd3dd93dd45063e3d58c4a065ee76d9e5263
MD5 hash:
523aedbb7420af74b0a4dc72dfccb689
SHA1 hash:
1faec9cf7eaec537f22446a9c8f1b8f76a8a3009
Link:
https://www.unpac.me/results/42425316-54f5-4e8f-8ee5-dbab6ad16eaf/
SH256 hash:
3b9f9fc739dfb6d59c22f7b0ee4134f404ae4faaea7b01896363a657f6db3643
MD5 hash:
fb0195df69de20a72d5cae1db21c3edf
SHA1 hash:
00bd435e2c1289ffbf86f2bd9c32655fa8848dc9
Link:
https://www.unpac.me/results/42425316-54f5-4e8f-8ee5-dbab6ad16eaf/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3b9f9fc739df/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/3b9f9fc739dfb6d59c22f7b0ee4134f404ae4faaea7b01896363a657f6db3643

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
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

Executable exe 3b9f9fc739dfb6d59c22f7b0ee4134f404ae4faaea7b01896363a657f6db3643

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/468405/

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