MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f8b6b559a3d8f55e8efd22212eeff9136bdbc27565b49183fce44b0ece72b6d. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8f8b6b559a3d8f55e8efd22212eeff9136bdbc27565b49183fce44b0ece72b6d
SHA3-384 hash: 7b0aee53143f32bd9429c1e6820597b7975c98b8040df46ecc1123a6fbf66a5ef2f0effc51a64d7be4af321249941606
SHA1 hash: 897cc57b911b1aa5a41ac8793fcb79be28196ee8
MD5 hash: c4e10220c55fbbb8e2dbed8d66d6be1a
humanhash: five-ink-four-fix
File name:Quotation Q 2022-05-05.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:43'008 bytes
First seen:2022-05-05 11:17:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 384:eTLmk+l2GtPl55020NffOPQEulai+MwCKPEH2S3dd0hUADka6Y:eTLmk5GtP18lsMwCK63deVDh
Threatray 16'200 similar samples on MalwareBazaar
TLSH T19013E81A2892561AC5D47BF869B1A19366367CE10134C18FECF97F29AD73323CCC226D
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 174f4559191b1b13 (81 x AgentTesla, 68 x Formbook, 34 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
290
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Quotation Q 2022-05-05.exe
Verdict:
Suspicious activity
Analysis date:
2022-05-05 11:24:10 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/fd2ce03c-c67c-4fc2-ad34-a85128859bc4

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/268876/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/6273b26c5c1970f8bbe95a1b/reports/be43a028-7bc8-405f-9a8d-f83db5db940d/overview
Result
Verdict:
SUSPICIOUS
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/e7d9a40f-e353-4070-a452-0e5aa7301cca
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/988459
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
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 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 BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: MSBuild connects to smtp port
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 Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 620957 Sample: Quotation Q 2022-05-05.exe Startdate: 05/05/2022 Architecture: WINDOWS Score: 100 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->60 62 8 other signatures 2->62 7 Quotation Q 2022-05-05.exe 16 7 2->7         started        11 Mklqmk.exe 14 3 2->11         started        14 Mklqmk.exe 2 2->14         started        process3 dnsIp4 42 cdn.discordapp.com 162.159.135.233, 443, 49779 CLOUDFLARENETUS United States 7->42 32 C:\Users\user\AppData\Roaming\...\Mklqmk.exe, PE32 7->32 dropped 34 C:\Users\user\...\Mklqmk.exe:Zone.Identifier, ASCII 7->34 dropped 36 C:\Users\...\Quotation Q 2022-05-05.exe.log, ASCII 7->36 dropped 16 MSBuild.exe 2 7->16         started        20 cmd.exe 1 7->20         started        44 162.159.134.233, 443, 49811 CLOUDFLARENETUS United States 11->44 64 Multi AV Scanner detection for dropped file 11->64 66 Machine Learning detection for dropped file 11->66 22 cmd.exe 11->22         started        46 162.159.130.233, 443, 49837 CLOUDFLARENETUS United States 14->46 file5 signatures6 process7 dnsIp8 38 mail.pilotgarage.com 5.250.241.50, 49799, 587 AYSIMATR Turkey 16->38 40 192.168.2.1 unknown unknown 16->40 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->48 50 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->50 52 Tries to steal Mail credentials (via file / registry access) 16->52 54 3 other signatures 16->54 24 conhost.exe 20->24         started        26 timeout.exe 1 20->26         started        28 conhost.exe 22->28         started        30 timeout.exe 22->30         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8f8b6b559a3d8f55e8efd22212eeff9136bdbc27565b49183fce44b0ece72b6d/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2022-05-05 09:02:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
18 of 41 (43.90%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r6fwwvm2hwhvl2hp2irbf3x7se3l3pbhkznusgb7zzclb3hhfnwq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
372f3ede21d2dc6c7f2ef29b36a29f8473ddb9d069c5a29cab5d26f9b6f3ecda
AgentTesla
4cf82337bab1a66dee7f8267b43745476f735a39047975612a83a5fdab1a0893
AgentTesla
b7c3b077777303227947d62064fea23a1473f57c07575476e97c92a811b37c46
AgentTesla
d08b7126b81c09be7e54774cc35399faceef0c2d4732cbbca5d46c48d89a2f51
AgentTesla
d2a15bc37d82c300a6f57910ea624261a5d71a73776d974dccc7c2eb6e62f80b
AgentTesla
+ 16'190 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220505-nd9q7saehl/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
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
Adds Run key to start application
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
8f8b6b559a3d8f55e8efd22212eeff9136bdbc27565b49183fce44b0ece72b6d
MD5 hash:
c4e10220c55fbbb8e2dbed8d66d6be1a
SHA1 hash:
897cc57b911b1aa5a41ac8793fcb79be28196ee8
Link:
https://www.unpac.me/results/ae1ddc0a-3473-49d4-a393-1af8eb146c70/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8f8b6b559a3d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/8f8b6b559a3d8f55e8efd22212eeff9136bdbc27565b49183fce44b0ece72b6d

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:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information

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

Malspam

AgentTesla

Executable exe 8f8b6b559a3d8f55e8efd22212eeff9136bdbc27565b49183fce44b0ece72b6d

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/268876/

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