MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c9c89543724cc2517b6f7a873f9c33cc055c237829c65a268dbdf64a21b4dd95. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
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SHA256 hash: c9c89543724cc2517b6f7a873f9c33cc055c237829c65a268dbdf64a21b4dd95
SHA3-384 hash: 60de3a97936acb0d263ecff091749210f622d340580f6c2d10b0446c86e36254b2e7f4c40210972ff0e0fc4fe9c7f5c1
SHA1 hash: ba286afad44a3f4f514aff7f1dca1c159f8cbec0
MD5 hash: 98d9d150c0b4afc30efd34c22e176f56
humanhash: lion-quebec-monkey-fruit
File name:Quotation#EX-2-0093-Q-FOB@2020-09-28.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:910'848 bytes
First seen:2020-09-28 12:02:28 UTC
Last seen:2020-09-28 13:05:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:WyBtjmCojfzv3J3LTT3onKLMplOBLG6+:J72fzv3ZbT0l
Threatray 10'634 similar samples on MalwareBazaar
TLSH 1115F0DAFE44A931D1AE2E7A11B0FE5E13FDD8132D42E7290973B4894A722C04F51DE6
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
2
# of downloads :
99
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/66405/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.5105.20978.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/476365
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 290634 Sample: Quotation#EX-2-0093-Q-FOB@2... Startdate: 28/09/2020 Architecture: WINDOWS Score: 100 31 Found malware configuration 2->31 33 Antivirus detection for dropped file 2->33 35 Antivirus / Scanner detection for submitted sample 2->35 37 8 other signatures 2->37 7 Quotation#EX-2-0093-Q-FOB@2020-09-28.exe 4 2->7         started        process3 file4 19 C:\Users\user\AppData\Roaming\OxswKUOe.exe, PE32 7->19 dropped 21 C:\Users\user\AppData\Local\...\tmpDC5A.tmp, XML 7->21 dropped 23 Quotation#EX-2-009...@2020-09-28.exe.log, ASCII 7->23 dropped 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->39 41 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->41 43 Injects a PE file into a foreign processes 7->43 45 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->45 11 Quotation#EX-2-0093-Q-FOB@2020-09-28.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 25 smtp.yandex.ru 77.88.21.158, 49732, 587 YANDEXRU Russian Federation 11->25 27 192.168.2.1 unknown unknown 11->27 29 smtp.yandex.com 11->29 47 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->47 49 Tries to steal Mail credentials (via file access) 11->49 51 Tries to harvest and steal ftp login credentials 11->51 53 Tries to harvest and steal browser information (history, passwords, etc) 11->53 17 conhost.exe 15->17         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c9c89543724cc2517b6f7a873f9c33cc055c237829c65a268dbdf64a21b4dd95/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2020-09-28 07:15:58 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zhejkq3sjtbfc63ppkdt7hbtzqcvyi3yfhdfujunxx3euinu3wkq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
15be9e4daf42167b3dbde6d51635bec36c27c59017336da5a47a6b735ec2fcf6
AgentTesla
36c63120981769bc6a508edf5da75eae9504ab5a1ffa0fe8d9032ed9b8c124e2
AgentTesla
56f2c7b9d0efa06b177d87a0617b2a4ccb000d72599d046e3cc014628a4ca497
AgentTesla
6351e6f0154a8c7c1da1176f86ebfcd7f5e8103ebcfc9d47ca69c072ef8b58d6
AgentTesla
7fa9a2b71f896b9d16ffc02b1bcf99840cc143674dac338a2b2aab669644e4b7
AgentTesla
9029fc110d6ad30af1c140d2c7af2192b17c04986ba7bacebed72d58c84241a7
AgentTesla
c750ae55b3e3cf8c83f657da2dc436d6acd799172701d6bb70caf72f4656e747
AgentTesla
defbf133c9e7d72102fde035e692158815cf0312c4f96535777e7bbeecd3a796
AgentTesla
f150b76e622e7da135e3d47a20c424aa20a6efeb839b15d301c17233bdcbc9f4
AgentTesla
ff15be1ad58f4f1423e39ca96c88564f67d5841b7fef3c6b109bea43ec8a8b45
AgentTesla
+ 10'624 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200928-87rf5m65ya/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
c9c89543724cc2517b6f7a873f9c33cc055c237829c65a268dbdf64a21b4dd95
MD5 hash:
98d9d150c0b4afc30efd34c22e176f56
SHA1 hash:
ba286afad44a3f4f514aff7f1dca1c159f8cbec0
Link:
https://www.unpac.me/results/4ad0d76a-c8b6-4231-b8b5-ca3c08bea8cb/
SH256 hash:
6ecf9926e8f3ce129cca0192bdfb92e7047b45bcf0d6efe7fb327ee89a8a21ff
MD5 hash:
62e507c6fb0acc2a4a80ebcf4621e595
SHA1 hash:
13c8cbb8812fc686eba3040569a1536176fe06e6
Detections:
win_agent_tesla_w1
Create hunting rule
Link:
https://www.unpac.me/results/4ad0d76a-c8b6-4231-b8b5-ca3c08bea8cb/
SH256 hash:
d916ff44af87ee2edb4e46d963e43047e82c519004410e5f71f5845712f16330
MD5 hash:
d65de9696a8841b724715ec8c5fcab39
SHA1 hash:
50d97dcbd2446cb4f1be6afd467393f530012141
Link:
https://www.unpac.me/results/4ad0d76a-c8b6-4231-b8b5-ca3c08bea8cb/
SH256 hash:
729a1b125fb330463c22a87c061e384300f49bd9d6793836bb3e52bcb61cc03f
MD5 hash:
ac3f427e66b28b013b0b651c2f71d1e9
SHA1 hash:
ddf8b4b1d36aced75740632b41d30add06b5db3d
Link:
https://www.unpac.me/results/4ad0d76a-c8b6-4231-b8b5-ca3c08bea8cb/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c9c89543724cc2517b6f7a873f9c33cc055c237829c65a268dbdf64a21b4dd95

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_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

AgentTesla

gz b5407867280ebab5a6ae8ae4878a36108b33d78976a0f5c4697e03ac17327193

AgentTesla

Executable exe c9c89543724cc2517b6f7a873f9c33cc055c237829c65a268dbdf64a21b4dd95

(this sample)

  
Dropped by
MD5 e45a496d51c0052b37ce30648e8902cd
  
Dropped by
SHA256 b5407867280ebab5a6ae8ae4878a36108b33d78976a0f5c4697e03ac17327193
  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/66405/

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