MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fbc03136e9f9f81025904df9b17d27499561e026f3a0c1fe93ce92b008516454. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fbc03136e9f9f81025904df9b17d27499561e026f3a0c1fe93ce92b008516454
SHA3-384 hash: 6f7d6e77c3ac64bbb65787853845b4dde77a87b1330ce62cc6464bdc720d6005a12c8db5224978d1591335a8bc17689c
SHA1 hash: f32002c07039ab84db3e037148d60e44ecc562af
MD5 hash: a53704f39b7b6de898e8bea2b79ea4e8
humanhash: shade-oklahoma-hot-black
File name:6w8ejtlVh.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'153'024 bytes
First seen:2021-01-15 01:51:55 UTC
Last seen:2021-01-15 03:45:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:+FMOaF6365NjOG8yQM0DQ7f4Hv3OvFhbIxiQcSsP7r9r/+pppppppppppppppppD:0MdwG8yQZQ76vAzcxJs1q
TLSH 8D355B81DB809B10EA7C63BD2435C47157F2EE69F3B8D65CFCC978A73AB6A1540AD042
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
2
# of downloads :
147
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6w8ejtlVh.exe
Verdict:
Malicious activity
Analysis date:
2021-01-15 01:53:30 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0c77463c-87a2-4c1f-a8a3-39613c67152a

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/112127/
Detection(s):
SecuriteInfo.com.Variant.Ursu.435286.3212.19621.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/582075
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
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)
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
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 340075 Sample: 6w8ejtlVh.exe Startdate: 15/01/2021 Architecture: WINDOWS Score: 100 68 Found malware configuration 2->68 70 Multi AV Scanner detection for dropped file 2->70 72 Sigma detected: Scheduled temp file as task from temp location 2->72 74 11 other signatures 2->74 7 6w8ejtlVh.exe 7 2->7         started        11 kprUEGC.exe 5 2->11         started        13 kprUEGC.exe 2 2->13         started        process3 file4 36 C:\Users\user\AppData\Roaming\lpvFHr.exe, PE32 7->36 dropped 38 C:\Users\user\...\lpvFHr.exe:Zone.Identifier, ASCII 7->38 dropped 40 C:\Users\user\AppData\Local\...\tmpA02F.tmp, XML 7->40 dropped 42 C:\Users\user\AppData\...\6w8ejtlVh.exe.log, ASCII 7->42 dropped 76 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->76 78 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->78 15 6w8ejtlVh.exe 17 5 7->15         started        20 schtasks.exe 1 7->20         started        80 Multi AV Scanner detection for dropped file 11->80 82 Machine Learning detection for dropped file 11->82 22 kprUEGC.exe 14 2 11->22         started        24 schtasks.exe 1 11->24         started        signatures5 process6 dnsIp7 44 smtp.abc-enginas.com 13.248.196.204, 587 AMAZON-02US United States 15->44 46 elb097307-934924932.us-east-1.elb.amazonaws.com 54.243.119.179, 443, 49770 AMAZON-AESUS United States 15->46 52 2 other IPs or domains 15->52 30 C:\Users\user\AppData\Roaming\...\kprUEGC.exe, PE32 15->30 dropped 32 C:\Users\user\...\kprUEGC.exe:Zone.Identifier, ASCII 15->32 dropped 56 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->56 58 Tries to steal Mail credentials (via file access) 15->58 60 Modifies the hosts file 15->60 62 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->62 26 conhost.exe 20->26         started        48 54.221.253.252, 443, 49772 AMAZON-AESUS United States 22->48 50 192.168.2.1 unknown unknown 22->50 54 2 other IPs or domains 22->54 34 C:\Windows\System32\drivers\etc\hosts, ASCII 22->34 dropped 64 Tries to harvest and steal ftp login credentials 22->64 66 Tries to harvest and steal browser information (history, passwords, etc) 22->66 28 conhost.exe 24->28         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fbc03136e9f9f81025904df9b17d27499561e026f3a0c1fe93ce92b008516454/
Threat name:
Win32.Trojan.Ursu
Create hunting rule
Status:
Malicious
First seen:
2021-01-15 01:33:10 UTC
AV detection:
11 of 46 (23.91%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7padcnxj7h4bajmqjx43c7jhjgkwdybg6oqmd7utz2jlaccrmrka._file
Verdict:
unknown
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Link:
https://tria.ge/reports/210115-swevdgjnxs/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Drops file in Drivers directory
Unpacked files
SH256 hash:
296620e9308a1069ca98d27c426f25f5c1f87d9240bb371c657571034b0261b5
MD5 hash:
4cf24d41a7882216740280e3294cb853
SHA1 hash:
6bcb31d3dc0a7d71da1067a628168664202769a4
Link:
https://www.unpac.me/results/cca62ac4-03ef-4ff8-8479-5b8d1be75997/
SH256 hash:
cb5a7415a9e81eafaa5e0d6f66d9bb1f404f5bfea19a381126932b5a06be194d
MD5 hash:
c603bd3f467e42b84a614e97ffb0f8e8
SHA1 hash:
b32aedd9244c63e5c971f62bc1530d93944fabb7
Link:
https://www.unpac.me/results/cca62ac4-03ef-4ff8-8479-5b8d1be75997/
SH256 hash:
fbc03136e9f9f81025904df9b17d27499561e026f3a0c1fe93ce92b008516454
MD5 hash:
a53704f39b7b6de898e8bea2b79ea4e8
SHA1 hash:
f32002c07039ab84db3e037148d60e44ecc562af
Link:
https://www.unpac.me/results/cca62ac4-03ef-4ff8-8479-5b8d1be75997/
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/fbc03136e9f9f81025904df9b17d27499561e026f3a0c1fe93ce92b008516454

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

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

Malspam

AgentTesla

zip 4625bc09ed443209d01d2053f7957af51a17da4645826f810cb4afdb2042c13d

AgentTesla

Executable exe fbc03136e9f9f81025904df9b17d27499561e026f3a0c1fe93ce92b008516454

(this sample)

  
Dropped by
MD5 2d8bec519d2addc031392605b538c12b
  
Dropped by
SHA256 4625bc09ed443209d01d2053f7957af51a17da4645826f810cb4afdb2042c13d
  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/112127/

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