MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7b5bc8135bbabcf6428dd19187f5216ef5cbabd88bb8386c91f30b35ac9ae851. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7b5bc8135bbabcf6428dd19187f5216ef5cbabd88bb8386c91f30b35ac9ae851
SHA3-384 hash: d139aff6b6892a8f02eeb5f83730cff7d4860ba0efc578b3dcb8f907bd0c3659701f02c3493610bc20077e0b295190e9
SHA1 hash: 614335a186f4642d28793551be0ba213b0479186
MD5 hash: b1a9aa4522215e3708396271da34cdb0
humanhash: friend-potato-colorado-stairway
File name:7110328.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:780'800 bytes
First seen:2020-08-14 11:31:22 UTC
Last seen:2020-08-14 14:40:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:JS1zkkNtheQXjZ3u9Gl4daBbsWRZmqlQJcK1dJV42w5fEZa4BmMpEp:oGQTkd6bsWRZZlYb/s6v
Threatray 10'612 similar samples on MalwareBazaar
TLSH B8F43C2D7A81E814D63C1A3584E856D13771A18B3A52CB1F3ACB479CAF03A9B7F0715B
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: ns13-777.999servers.com
Sending IP: 103.14.122.123
From: Evonik Industries AG <sales@evonik.de>
Subject: New inquiry/Price list request
Attachment: RFQ-Evonik.xls

AgentTesla payload URL:
http://13.234.238.111/gh/7110328.exe

AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/45887/
Detection(s):
SecuriteInfo.com.Trojan.Siggen10.3937.18368.15707.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Sending a UDP request
Creating a file
Running batch commands
Launching a process
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/429634
Signature
Allocates memory in foreign processes
Creates an autostart registry key pointing to binary in C:\Windows
Drops PE files to the startup folder
Injects a PE file into a foreign processes
Sigma detected: Add file from suspicious location to autostart registry
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 267287 Sample: 7110328.exe Startdate: 16/08/2020 Architecture: WINDOWS Score: 60 36 Yara detected AgentTesla 2->36 38 Sigma detected: Add file from suspicious location to autostart registry 2->38 40 Tries to detect virtualization through RDTSC time measurements 2->40 7 7110328.exe 9 2->7         started        11 yert.exe 2 2->11         started        13 pcalua.exe 1 1 2->13         started        15 pcalua.exe 1 2->15         started        process3 file4 28 C:\Users\user\AppData\Roaming\...\yert.exe, PE32 7->28 dropped 30 C:\Users\user\AppData\...\InstallUtil.exe, PE32 7->30 dropped 32 C:\Users\user\...\yert.exe:Zone.Identifier, ASCII 7->32 dropped 34 C:\Users\user\AppData\Local\Temp\...\l.dll, PE32 7->34 dropped 44 Drops PE files to the startup folder 7->44 46 Tries to detect virtualization through RDTSC time measurements 7->46 17 cmd.exe 1 7->17         started        19 yert.exe 3 7->19         started        48 Writes to foreign memory regions 11->48 50 Allocates memory in foreign processes 11->50 52 Injects a PE file into a foreign processes 11->52 21 InstallUtil.exe 2 11->21         started        signatures5 process6 process7 23 reg.exe 1 1 17->23         started        26 conhost.exe 17->26         started        signatures8 42 Creates an autostart registry key pointing to binary in C:\Windows 23->42
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7b5bc8135bbabcf6428dd19187f5216ef5cbabd88bb8386c91f30b35ac9ae851/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-14 11:32:09 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pnn4qe23xk6pmqun2giyp5jbn324xk6yro4dq3er6mftlle25biq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
7224ce18911e8f1865c59ea87da299938b7e1aaa3d1a3bfcc4c5d33bb8ab935d
AgentTesla
8b59bb0de82bb4ea040c01288665d92022d47b8a2c426c573181dffe650e3a8c
AgentTesla
94bb69e726461f198145fac175e2e27ccc72534ae29db90cfaef683e726adec2
AgentTesla
b3289e282e7c031fde98778bac0057bad5d933c85da0b43d95f177c6333fc3c2
AgentTesla
b8f668a48ebd4f1df718792fb3756c03053f91a1737910220a63cdfe67d9ad75
AgentTesla
bc42fd114a0308d12edb1ef9ab5b5d44c3cf3d447e7cf9e0218aae671fe25d39
AgentTesla
c0fe48e42fb4769fd14e90de135d33729de312e0b82ba907885b26462f80af01
AgentTesla
df50adbb821e5dd2d36e35cb6d2ec32b7b523bd27803cde87c6c66350580c574
AgentTesla
e9b9c624c29a9aefaa2f235d9014a3bb4350f844d617530da216e434a53660b9
AgentTesla
fa885e667cc43b0acd85af66802d2eaa9266ceed59a74589b415aa0ef45e4ce9
AgentTesla
+ 10'602 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer family:agenttesla
Link:
https://tria.ge/reports/200814-99xke1dgpa/
Behaviour
AgentTesla Payload
Agenttesla family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
0.70
Link:
https://yomi.yoroi.company/submissions/7b5bc8135bbabcf6428dd19187f5216ef5cbabd88bb8386c91f30b35ac9ae851

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

Excel file xls 130b55c40ccc64b967fa3427df564378b7694dc35edaf4113312e5e60143c7de

AgentTesla

Executable exe 7b5bc8135bbabcf6428dd19187f5216ef5cbabd88bb8386c91f30b35ac9ae851

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/433119/
  
Dropped by
MD5 96c43a877edd284bb70387b3ac16a159
  
Dropped by
SHA256 130b55c40ccc64b967fa3427df564378b7694dc35edaf4113312e5e60143c7de
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/45887/

Comments