MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 79f31a87c4435c11bbb786847d8cecace6d76c49c1c14d3b53c664485f735e40. 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: 15


Intelligence 15 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 79f31a87c4435c11bbb786847d8cecace6d76c49c1c14d3b53c664485f735e40
SHA3-384 hash: 2940a117c4264176d99dc1b3095c6831c32156842b7a051ef4419a9b4dd73936c3f985325a5153720c3cf3aaa9e6231c
SHA1 hash: de3473050c3ff7bbe1509343ee48769fc59b306d
MD5 hash: d16bc8059023daf9183ad406e05dc9b3
humanhash: texas-salami-illinois-minnesota
File name:Quotation PO-230102_Aromatics Co.,LtdAromatics Co.,Ltd.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:659'968 bytes
First seen:2023-10-17 11:54:12 UTC
Last seen:2023-10-17 12:32:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:dBLXmsrJM14sHKisaYDP6LCEZSSqNTyJY1PQvYNk1V91+oRdE2:nLWiMaBaUqZBbJg9Nk3+8+2
Threatray 228 similar samples on MalwareBazaar
TLSH T1F8E4120037FCC797E636A3F7252151108BBD3A958D6EEBC95F8520CF9A2AF010569B1B
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) (4505/5/1)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
334
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Quotation PO-230102_Aromatics Co.,LtdAromatics Co.,Ltd.exe
Verdict:
Malicious activity
Analysis date:
2023-10-17 12:36:04 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/409d21bc-47e1-4282-8b02-4035e2bd98d9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/455301/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
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
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/652e7619853e4f06480c4867/reports/de495193-985d-4a24-9927-47ab6b0cc69a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/79f31a87c4435c11bbb786847d8cecace6d76c49c1c14d3b53c664485f735e40
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/7e8bf202-2f66-4e47-991e-7e5eaef4dddc
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1327224
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
Initial sample is a PE file and has a suspicious name
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: 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: 1327224 Sample: Quotation_PO-230102_Aromati... Startdate: 17/10/2023 Architecture: WINDOWS Score: 100 38 mail.cbinet.net 2->38 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Sigma detected: Scheduled temp file as task from temp location 2->46 48 9 other signatures 2->48 8 Quotation_PO-230102_Aromatics_Co.,LtdAromatics_Co.,Ltd.exe 7 2->8         started        12 ZIrbrXRWf.exe 5 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\Roaming\ZIrbrXRWf.exe, PE32 8->34 dropped 36 C:\Users\user\AppData\Local\...\tmpEE36.tmp, XML 8->36 dropped 50 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->50 52 Uses schtasks.exe or at.exe to add and modify task schedules 8->52 54 Adds a directory exclusion to Windows Defender 8->54 14 Quotation_PO-230102_Aromatics_Co.,LtdAromatics_Co.,Ltd.exe 2 8->14         started        18 powershell.exe 23 8->18         started        20 schtasks.exe 1 8->20         started        56 Multi AV Scanner detection for dropped file 12->56 58 Machine Learning detection for dropped file 12->58 22 ZIrbrXRWf.exe 12->22         started        24 schtasks.exe 1 12->24         started        26 ZIrbrXRWf.exe 12->26         started        signatures6 process7 dnsIp8 40 mail.cbinet.net 196.2.13.50, 49746, 49747, 587 CBI-ASCBINETBujumburaBurundiBI Burundi 14->40 28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        60 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->60 62 Tries to steal Mail credentials (via file / registry access) 22->62 64 Tries to harvest and steal browser information (history, passwords, etc) 22->64 32 conhost.exe 24->32         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/79f31a87c4435c11bbb786847d8cecace6d76c49c1c14d3b53c664485f735e40
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/79f31a87c4435c11bbb786847d8cecace6d76c49c1c14d3b53c664485f735e40/
Threat name:
ByteCode-MSIL.Trojan.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2023-10-17 04:41:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
21 of 36 (58.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=phzrvb6einobdo5xq2ch3dhmvttno3cjyhau2o2tyzseqx3tlzaa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
4f7ee7b035490423edd7b7c641b2ac81c192252de8c5ab2e40375274a170d5fc
AgentTesla
91e46a1f92b62a00123f07c5ab34d2c3f4655e8801e53766e82fc4603b7f6d4c
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9e986879ac645f058d5deb6415cc90f40130a67e3d4263be55dbe1a8ff68ad2d
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a184d2ce3480d7760397c33df9cb2558133468bf0872d9653a44efc2d85142b3
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af58340e31f464e29c9d7f9f4b538ca71fdee3353e98827f75f4a4a8e63a39a3
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b674cc279ec0579f342c73a81a4a4bed94b6e7e3aceb017801053261bcf060b6
AgentTesla
c41b3639173707dfe1b070b92c1b3ed4ed451be6595fa150b930a7dfc4efd2af
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cbc89edf3aa7a92b0421b1bb97f4dcc22197ddea97717f0fac9660064e674f43
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cd35f2049e2d52ad861549173a06f04df54a67ab7b7411ef5af51320de45039d
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f7d41ad8a4dc070637b23abe257ff94fb4c415694e04018c25b0369506fa03ea
AgentTesla
+ 218 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/231017-n3fvesdc73/
Behaviour
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Unpacked files
SH256 hash:
b1270dc9ec3f22c6fd2296239426ac7c48589589580d4a1b3da8188920b22a63
MD5 hash:
5c904da8528cfb1b87b15a6aa7c059cd
SHA1 hash:
f0a192969485d1bc34bf52adf37d9c20176d6b85
Link:
https://www.unpac.me/results/878b108d-e7b8-4aa0-95a8-5faaa57768be/
SH256 hash:
068b103533bd50fd32cb8df489bc3a04193174cb4ea556a1ffe852d3cbac112d
MD5 hash:
bce58d976229b466b5b84dd6ae51ffd4
SHA1 hash:
7c4c7d969a7bbdc74447c434dd5d862138e1b260
Link:
https://www.unpac.me/results/878b108d-e7b8-4aa0-95a8-5faaa57768be/
SH256 hash:
930a51d456a879329226eeb83c3712ba7136896d47b8bb412fbab8e1e1c5b27e
MD5 hash:
9dc418183442e6849a83a44627812394
SHA1 hash:
651b78a91c95da5255fd4ee61d61b141b112ca9a
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
Link:
https://www.unpac.me/results/878b108d-e7b8-4aa0-95a8-5faaa57768be/
Parent samples :
af9373c37ef6f7cee66f69230dd4bf6f7773153af373f3485a387c0856ef5dbc
a6608ce0f39cb1ee560bfdf8d7e421b093169b36c5db03b1a77be8296a6736ee
79f31a87c4435c11bbb786847d8cecace6d76c49c1c14d3b53c664485f735e40
SH256 hash:
946c5d8f755d41b382e04a0863afe43cd23b3acdae161ecdb8e9f8fd6b5f78d2
MD5 hash:
f8c821d421f9bc0fe5fcc3da1e37bc2c
SHA1 hash:
4c2301890cf0738fbb8bab6db9c9990313bdabfc
Link:
https://www.unpac.me/results/878b108d-e7b8-4aa0-95a8-5faaa57768be/
SH256 hash:
79f31a87c4435c11bbb786847d8cecace6d76c49c1c14d3b53c664485f735e40
MD5 hash:
d16bc8059023daf9183ad406e05dc9b3
SHA1 hash:
de3473050c3ff7bbe1509343ee48769fc59b306d
Link:
https://www.unpac.me/results/878b108d-e7b8-4aa0-95a8-5faaa57768be/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/79f31a87c443/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/79f31a87c4435c11bbb786847d8cecace6d76c49c1c14d3b53c664485f735e40

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: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: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

Executable exe 79f31a87c4435c11bbb786847d8cecace6d76c49c1c14d3b53c664485f735e40

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/455301/

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