MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 38c355096d36e40372909438c026352cfd757d788ff89d5deffd001c6d0439f2. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 38c355096d36e40372909438c026352cfd757d788ff89d5deffd001c6d0439f2
SHA3-384 hash: c1bd52156fdbcaa039d2ef24ae487f769ba4f18dae79bd20a9176b041fb7a8a95df7b9fbc4a6c997ffd5f96f483a4e1c
SHA1 hash: 41a6e74084e6f36ad739b580cef57c9cfc45aee7
MD5 hash: 7f487751416f11635ee8c2a5ebd0a88f
humanhash: bulldog-pluto-edward-paris
File name:BL-50138520001385410.bat
Download: download sample
Signature AgentTesla
Create hunting rule
File size:43'520 bytes
First seen:2022-02-17 07:41:38 UTC
Last seen:2022-02-17 13:02:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 768:+S1SsIGXYz0o6NDgUdwWPzmVIzll0zJJnGzMgXqJE:+CvIwYArNDxiWPzmVIzll0zJJnGggH
Threatray 15'110 similar samples on MalwareBazaar
TLSH T10F136B11667C45F0F6EECE759E82C73802A69C4184B1A565E8DB3DC6F933603CB2A5F0
File icon (PE):PE icon
dhash icon 27d0d8d4d4d8d027 (24 x AgentTesla, 8 x SnakeKeylogger, 7 x Formbook)
Reporter cocaman
Tags:AgentTesla bat exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
246
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/242188/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.38988219.28100.6908.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
DNS request
Сreating synchronization primitives
Sending an HTTP GET request
Sending a custom TCP request
Launching a process
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/620dfc5aa2660f3bb9ee65ac/reports/97d9fe79-c5a5-4960-b178-854ae1390708/overview
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.
Gathering data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/941420
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Found malware configuration
Injects a PE file into a foreign processes
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 573898 Sample: BL-50138520001385410.bat Startdate: 17/02/2022 Architecture: WINDOWS Score: 100 31 google.com 2->31 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 6 other signatures 2->49 7 BL-50138520001385410.exe 16 7 2->7         started        12 Rwjxqfvv.exe 14 3 2->12         started        14 Rwjxqfvv.exe 3 2->14         started        signatures3 process4 dnsIp5 33 35.77.84.215, 49761, 49821, 49822 AMAZON-02US United States 7->33 35 google.com 142.250.181.206 GOOGLEUS United States 7->35 37 192.168.2.1 unknown unknown 7->37 25 C:\Users\user\AppData\...\Rwjxqfvv.exe, PE32 7->25 dropped 27 C:\Users\...\Rwjxqfvv.exe:Zone.Identifier, ASCII 7->27 dropped 29 C:\Users\...\BL-50138520001385410.exe.log, ASCII 7->29 dropped 51 Writes to foreign memory regions 7->51 53 Injects a PE file into a foreign processes 7->53 16 MSBuild.exe 2 7->16         started        19 conhost.exe 7->19         started        55 Multi AV Scanner detection for dropped file 12->55 57 Machine Learning detection for dropped file 12->57 21 conhost.exe 12->21         started        23 conhost.exe 14->23         started        file6 signatures7 process8 signatures9 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->39 41 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 16->41
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/38c355096d36e40372909438c026352cfd757d788ff89d5deffd001c6d0439f2/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-02-16 09:31:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hdbvkclng3sag4uqsq4majrvft6xk7lyr74j2xpp7uaby3iehhza._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1109e9c4a8dceb63160c59807b81adc6d4e82c28529c80bd1ff80993dc906508
AgentTesla
11b348d29d7d59db775a985722a30da76b6a897333e288ed8726b42330c6a85c
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1e3432a2d3072ee5958b26e15d97ca1f6734c3522e701682b237544f5eb66645
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3d652eb897291f8eb2fe8f9374007388b0cd426a797de77545b82a325dde762a
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82974999943578ea16bc86bc5e87c7a6122e24593a9adc2f069f81be85ed79cd
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8b345f73d84e6fc765d7907aaa33d844ef2c180024baeaa53ff895bab8e19356
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b0cea585c416540b6820f91a0c1cf8d8eb6776ec0cecce0709cd2c22f15f7cc3
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b5aeb6d277320df561d9bb77a95e976c5527c17441292ec7b5bafc441fe746d0
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be48a66b718f94c2379453ff845e0047504573e3c0e1a9f7ab3011dab1c06b57
AgentTesla
df5e40d1e917f0bd4c424f65c8e2557d094f5eff22b4ba6f63f093333ebbb8a9
AgentTesla
+ 15'100 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/220217-jjpwrsbhar/
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
38c355096d36e40372909438c026352cfd757d788ff89d5deffd001c6d0439f2
MD5 hash:
7f487751416f11635ee8c2a5ebd0a88f
SHA1 hash:
41a6e74084e6f36ad739b580cef57c9cfc45aee7
Link:
https://www.unpac.me/results/591377bd-291e-48a2-8bdc-eb6b7a7e095e/
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/38c355096d36e40372909438c026352cfd757d788ff89d5deffd001c6d0439f2

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
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

gz a664029d65a11a3ced15f1205bbe2db396f0a5fda97849fd5eaf4d7b48885e3a

AgentTesla

Executable exe 38c355096d36e40372909438c026352cfd757d788ff89d5deffd001c6d0439f2

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 a664029d65a11a3ced15f1205bbe2db396f0a5fda97849fd5eaf4d7b48885e3a
Cape
Cape
https://www.capesandbox.com/analysis/242188/
  
URLhaus
https://urlhaus.abuse.ch/url/2046215/

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