MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d55058cb53b44c6372ef7fb902fcdb305ab3778229f12a1e62b0c8d05bcc9791. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d55058cb53b44c6372ef7fb902fcdb305ab3778229f12a1e62b0c8d05bcc9791
SHA3-384 hash: f7a93949cd3e93636b15640304d3dce95b109ea4e4770bd3787d892fe471249617b50b91ad85c4adb4b9a6075c6a8ac2
SHA1 hash: 4437c53d3d0f1697b910be1a07c63b56607e2da9
MD5 hash: 4d0defce8fe8f642fd223749f7bb7731
humanhash: thirteen-foxtrot-virginia-hawaii
File name:TT copy.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'080'320 bytes
First seen:2021-10-07 06:47:05 UTC
Last seen:2021-10-07 18:38:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:4HUcJaCaxlUzfpezgydWv1d4i+PlmCeUhkvkJ5d1O:+UcMC6zgydqL4/lp1R
Threatray 10'963 similar samples on MalwareBazaar
TLSH T16A35745363AC8DC4C06792B4DFC5C4B96C19D9EE421A53B4AB12AB60F79FD030E6A473
File icon (PE):PE icon
dhash icon e0b292aa9adab2b0 (8 x AgentTesla, 1 x RemcosRAT)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
142
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
TT copy.exe
Verdict:
Malicious activity
Analysis date:
2021-10-07 06:56:54 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/07feae3b-b3c3-4ce9-b699-11f9e5b5bd43

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/195630/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.16988.9629.29137.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a process with a hidden window
Deleting a recently created file
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/615e97eeb95458900cddddf2/reports/6a15f82e-4c81-463e-92c4-e4d6f2805182/overview
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/866075
Signature
.NET source code contains very large strings
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 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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 498503 Sample: TT copy.exe Startdate: 07/10/2021 Architecture: WINDOWS Score: 100 38 mail.smurugan.in 2->38 48 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->48 50 Found malware configuration 2->50 52 Multi AV Scanner detection for dropped file 2->52 54 4 other signatures 2->54 8 TT copy.exe 6 2->8         started        12 tKZVPq.exe 2 2->12         started        14 tKZVPq.exe 1 2->14         started        signatures3 process4 file5 32 C:\Users\user\AppData\Roaming\edFvZkQOG.exe, PE32 8->32 dropped 34 C:\Users\user\AppData\Local\...\tmpCC37.tmp, XML 8->34 dropped 36 C:\Users\user\AppData\...\TT copy.exe.log, ASCII 8->36 dropped 56 Writes to foreign memory regions 8->56 58 Injects a PE file into a foreign processes 8->58 16 RegSvcs.exe 2 4 8->16         started        20 schtasks.exe 1 8->20         started        22 conhost.exe 12->22         started        24 conhost.exe 14->24         started        signatures6 process7 file8 28 C:\Users\user\AppData\Roaming\...\tKZVPq.exe, PE32 16->28 dropped 30 C:\Windows\System32\drivers\etc\hosts, ASCII 16->30 dropped 40 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->40 42 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 16->42 44 Modifies the hosts file 16->44 46 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->46 26 conhost.exe 20->26         started        signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d55058cb53b44c6372ef7fb902fcdb305ab3778229f12a1e62b0c8d05bcc9791/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-07 05:22:07 UTC
AV detection:
8 of 45 (17.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2vifrs2twrggg4xpp64qf7g3gbnlg54cfhysuhtcwdenaw6ms6iq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0f45d10c7dfb42e6822388ee401bbbcbdb50de45b3daaf35a8652aba9813a169
AgentTesla
428b4819734a979d5685b235d190ab9e07bfd6e5098e22ee9195cd386dc701d0
AgentTesla
74c2f8176fadf84bb04083901d52033b0975245676b45cd8607d80bebc91e570
AgentTesla
7edefe1f7ee89333c843233b07723e43b3ff4e202ef14df8f4db4d40e71b238f
AgentTesla
b045b7b993b005e1930ca50a9eb65df8b62ca29d1dfdbbb28ca6621384172908
AgentTesla
c21d2f1d2c5dad844ee2c789b2a424f0808e9eaf4edbf4319dca34531aacbe2c
AgentTesla
c345fbabcb3e55e64341e860bb2916ba52ddea44257d8fa5b79f2ae7062734c8
AgentTesla
e30e9ec11818e069b23a74a0a47d0a2b91c19556e2851a79c033c2ef0b680974
AgentTesla
faa5023447bfa3319ef4bade70a720dc8c101eec8a86bf499e8677a20c2fd475
AgentTesla
+ 10'953 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/211007-hj919scbfr/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
4318aa976167ac0d2bee071cc0847298495eabceb834b631a7cd2876b936a448
MD5 hash:
5071693745d6305fa9671efe9754e6e4
SHA1 hash:
f28a5b87b044ef4652b5e5172339b7a93d68af9c
Link:
https://www.unpac.me/results/5e2f81a1-bb5b-4361-bc80-ef74450e07c2/
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
Link:
https://www.unpac.me/results/5e2f81a1-bb5b-4361-bc80-ef74450e07c2/
SH256 hash:
dde5f0e3fcd3013d9f53070bdd98aae17b89c6ecfe4dd4bbc3ca8801db95ee78
MD5 hash:
14efe39ea9aecca066d2ef3f587106ed
SHA1 hash:
2a356f45d6b3de6a9d829c36be12d11ddaeaecb6
Link:
https://www.unpac.me/results/5e2f81a1-bb5b-4361-bc80-ef74450e07c2/
SH256 hash:
d55058cb53b44c6372ef7fb902fcdb305ab3778229f12a1e62b0c8d05bcc9791
MD5 hash:
4d0defce8fe8f642fd223749f7bb7731
SHA1 hash:
4437c53d3d0f1697b910be1a07c63b56607e2da9
Link:
https://www.unpac.me/results/5e2f81a1-bb5b-4361-bc80-ef74450e07c2/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/d55058cb53b4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/d55058cb53b44c6372ef7fb902fcdb305ab3778229f12a1e62b0c8d05bcc9791

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_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
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 d55058cb53b44c6372ef7fb902fcdb305ab3778229f12a1e62b0c8d05bcc9791

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/195630/

Comments