MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8e983c2f83998d2c4578abe1bbfb0f36e0131019de8af8a62948f4fc5c7da7f9. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
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SHA256 hash: 8e983c2f83998d2c4578abe1bbfb0f36e0131019de8af8a62948f4fc5c7da7f9
SHA3-384 hash: 485c5af7723a24e9abe5b221796706458a883049f54d668111379142b07e2a2084b8c9a82a600858711c3e94cf08837c
SHA1 hash: 54bf03bd7abce73a15fe3dba5fd7880e9e9e128c
MD5 hash: 2792a51515f062bccad04a227e469c47
humanhash: sad-autumn-virginia-black
File name:dorlla.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:582'656 bytes
First seen:2021-10-12 10:55:40 UTC
Last seen:2021-10-12 13:47:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:YVbiMAyNPz6Ne+vWfA/08BKbwkH0KjUs3E3r8TcKq8jsOSB:0+FlNe+vWJ8BcH0Ds8iM8YTB
Threatray 11'549 similar samples on MalwareBazaar
TLSH T1FAC41200279FDDA6C18E54FD108A1AF353E2F19470C6F75ABE9521FBA81BBC65B83112
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
190
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
dorlla.exe
Verdict:
Suspicious activity
Analysis date:
2021-10-12 11:01:57 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ac2b2f7c-7321-46e4-b8ff-396b36d27af8

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/196909/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/616569c49fb4d8593d6261bc/reports/080c55e9-2ffc-4f36-8a91-2b66cb9cd3a5/overview
Result
Verdict:
UNKNOWN
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/36e9ed51-dbe9-4a91-9516-c8fa9c56d38c
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/868558
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Modifies the hosts 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: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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 access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 500982 Sample: dorlla.exe Startdate: 12/10/2021 Architecture: WINDOWS Score: 100 47 Found malware configuration 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 Yara detected AgentTesla 2->51 53 5 other signatures 2->53 6 dorlla.exe 3 2->6         started        10 NXLun.exe 2 2->10         started        12 NXLun.exe 1 2->12         started        process3 file4 25 C:\Users\user\AppData\...\dorlla.exe.log, ASCII 6->25 dropped 55 Writes to foreign memory regions 6->55 57 Allocates memory in foreign processes 6->57 59 Injects a PE file into a foreign processes 6->59 14 RegSvcs.exe 2 4 6->14         started        19 RegSvcs.exe 6->19         started        21 conhost.exe 10->21         started        23 conhost.exe 12->23         started        signatures5 process6 dnsIp7 31 upgcambodia.com 88.99.137.80, 49857, 587 HETZNER-ASDE Germany 14->31 33 mail.upgcambodia.com 14->33 27 C:\Users\user\AppData\Roaming\...27XLun.exe, PE32 14->27 dropped 29 C:\Windows\System32\drivers\etc\hosts, ASCII 14->29 dropped 35 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->35 37 Tries to steal Mail credentials (via file access) 14->37 39 Tries to harvest and steal ftp login credentials 14->39 45 3 other signatures 14->45 41 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->41 43 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 19->43 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8e983c2f83998d2c4578abe1bbfb0f36e0131019de8af8a62948f4fc5c7da7f9/
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2021-10-12 07:45:04 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r2mdyl4dtggsyrlyvpq3x6ypg3qbgeaz32fprjrjjd2pyxd5u74q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0493f2ecae495005cc3b48720bbeb2b88b188fd88a88e00c4eb0eda8d8008581
AgentTesla
09aee6abb9346613d79d14df006bde49924dfe308ca268e349ad134db2d0afa9
AgentTesla
15380efe8849b42c7f8eef7ce4ece102aa31516d35c994c09ba1e463ae8055a2
AgentTesla
5fe1b4adea2656f28bff5b1f238e3e9a16ecc9574dfd413e31a1435a1f94c8d4
AgentTesla
60ea5d831209598cc0aebbd8d5f31f4bb43c29b054f565bbbcb5353b9c7ad06d
AgentTesla
8ffd510513cafe4d5b4812ef693f06dcff7dc4097cccacd1be4ca0d308f3494d
AgentTesla
b019e8d729a835b9834889650eb87183538da0a1ff600e138db6065efea24a57
AgentTesla
f97b20de4d8f123a11901c5dee2121c2c5b6f6d6baea3cb26404c53f5f681822
AgentTesla
+ 11'539 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/211012-m1ph4scbg9/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
918f2a7d18dedc570505cfc1e677644b9beaf2c08781c789f5c5387d0a1e70c8
MD5 hash:
5236ada5fa7935314dff479be385f3f3
SHA1 hash:
3031143ad073797efbe16b4006d73e7a3e3b07e4
Link:
https://www.unpac.me/results/a912ecde-66cc-4338-81db-66a5e8aec6f8/
SH256 hash:
4e39152d508d4500f20c9e5074ceedc6e111d42a5ad71173aba9bf44d936c5b7
MD5 hash:
80f0d1d5319bc296be8425b4408f62ae
SHA1 hash:
2f3565c88600caa77893bd1d8a082501bab29131
Link:
https://www.unpac.me/results/a912ecde-66cc-4338-81db-66a5e8aec6f8/
SH256 hash:
eda4d687b865aed0078ab87078de7d9722888b2d2af71c6fc0dcdc986ffb7567
MD5 hash:
12cf5402be16590c300b442a66e9ebc1
SHA1 hash:
0ea28394d301ca1ce840f039d2da62a5ce6d9334
Link:
https://www.unpac.me/results/a912ecde-66cc-4338-81db-66a5e8aec6f8/
SH256 hash:
8e983c2f83998d2c4578abe1bbfb0f36e0131019de8af8a62948f4fc5c7da7f9
MD5 hash:
2792a51515f062bccad04a227e469c47
SHA1 hash:
54bf03bd7abce73a15fe3dba5fd7880e9e9e128c
Link:
https://www.unpac.me/results/a912ecde-66cc-4338-81db-66a5e8aec6f8/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/8e983c2f8399/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/8e983c2f83998d2c4578abe1bbfb0f36e0131019de8af8a62948f4fc5c7da7f9

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:pe_imphash
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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 8e983c2f83998d2c4578abe1bbfb0f36e0131019de8af8a62948f4fc5c7da7f9

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/196909/

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