MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 431c9f8b4b58782d7f9ebeccb1b3a18357667fef8293571cf01aa72f98720df2. 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: 6


Intelligence 6 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 431c9f8b4b58782d7f9ebeccb1b3a18357667fef8293571cf01aa72f98720df2
SHA3-384 hash: ccb4c89353f9ef696735020ea98a4971f5005ac0b1a7d423f5e6fe43322736a0b2bdf1828ddb769dbff28f8ba824b716
SHA1 hash: b707c5b21eb2764b13d3a486436d44c4b1fb55d5
MD5 hash: 03dd9baefe4922af6c7f6d569ea70cb7
humanhash: august-princess-xray-lemon
File name:Purchase Order.PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:755'200 bytes
First seen:2020-11-05 14:51:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:MMUogv89bNgOpL6WzZphUWGEgXSfI4SpFa/zae5MCACrznCj0DD2YbNA6a7FHw2W:M52N+CAGFDDbWD7B6onBH/i
Threatray 973 similar samples on MalwareBazaar
TLSH 0AF4AD9D3214B2DFC857D072DAA82D78FA6064BB931F4603942356ADDE4D89BCF244F2
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
71
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/83275/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a process
Creating a process with a hidden window
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/521582
Signature
.NET source code contains very large array initializations
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected unpacking (changes PE section rights)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
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
Sigma detected: Suspicious Double Extension
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 steal Mail credentials (via file access)
Uses an obfuscated file name to hide its real file extension (double extension)
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 dnsIp2 2 Behavior Graph ID: 309893 Sample: Purchase Order.PDF.exe Startdate: 05/11/2020 Architecture: WINDOWS Score: 100 55 nagano-19599.herokussl.com 2->55 57 elb097307-934924932.us-east-1.elb.amazonaws.com 2->57 59 api.ipify.org 2->59 69 Multi AV Scanner detection for dropped file 2->69 71 Sigma detected: Scheduled temp file as task from temp location 2->71 73 Multi AV Scanner detection for submitted file 2->73 75 17 other signatures 2->75 8 Purchase Order.PDF.exe 7 2->8         started        12 Mymp4.exe 5 2->12         started        14 Mymp4.exe 4 2->14         started        signatures3 process4 file5 41 C:\Users\user\AppData\...\gGOTwLvgkqkBja.exe, PE32 8->41 dropped 43 C:\...\gGOTwLvgkqkBja.exe:Zone.Identifier, ASCII 8->43 dropped 45 C:\Users\user\AppData\Local\...\tmpA1AB.tmp, XML 8->45 dropped 47 C:\Users\user\...\Purchase Order.PDF.exe.log, ASCII 8->47 dropped 77 Injects a PE file into a foreign processes 8->77 16 Purchase Order.PDF.exe 17 5 8->16         started        21 schtasks.exe 1 8->21         started        79 Multi AV Scanner detection for dropped file 12->79 81 Detected unpacking (changes PE section rights) 12->81 83 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->83 85 2 other signatures 12->85 23 schtasks.exe 1 12->23         started        25 Mymp4.exe 2 12->25         started        27 schtasks.exe 14->27         started        29 Mymp4.exe 14->29         started        signatures6 process7 dnsIp8 49 elb097307-934924932.us-east-1.elb.amazonaws.com 54.235.182.194, 443, 49732 AMAZON-AESUS United States 16->49 51 nagano-19599.herokussl.com 16->51 53 api.ipify.org 16->53 37 C:\Users\user\AppData\Roaming\...\Mymp4.exe, PE32 16->37 dropped 39 C:\Users\user\...\Mymp4.exe:Zone.Identifier, ASCII 16->39 dropped 61 Tries to steal Mail credentials (via file access) 16->61 63 Tries to harvest and steal ftp login credentials 16->63 65 Tries to harvest and steal browser information (history, passwords, etc) 16->65 67 2 other signatures 16->67 31 conhost.exe 21->31         started        33 conhost.exe 23->33         started        35 conhost.exe 27->35         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/431c9f8b4b58782d7f9ebeccb1b3a18357667fef8293571cf01aa72f98720df2/
Threat name:
ByteCode-MSIL.Trojan.Sudloader
Create hunting rule
Status:
Malicious
First seen:
2020-11-05 12:52:44 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=imoj7c2llb4c2746x3gldm5bqnlwm77pqkjvohhqdkts7gdsbxza._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
01330ada2211171d1bb5db977363a94cea239c455ea8c2fabea401a29b1c8143
AgentTesla
20dbea65f9ea5d713ead877a8fdca2bb606af820520ea99fafcef39fc7652ce2
AgentTesla
2565e3190558400fb85b0389e7aadf850a4c32d2b7b7d09e37820b8ad361c39a
AgentTesla
642dfced9844802f4388b3c2f30e08d9a1c94f2507e7277d900756b284d37ca1
AgentTesla
6609cf9b0aefabaaf1bccc04237e6ff32315960166bf4aa2ff5372cfb51c80d3
AgentTesla
6b75182568a1cf2fef851977be460536fe4a0af4aaf05b41a253c53f2af276fc
AgentTesla
a97528499bee868023a6898c85da34f9ed73a5a12b8a3a01817a88d82a8c5641
AgentTesla
e4a41177193fe8cd0c6113402e16b6be355a08baed17e525019ff02ffd8884a8
AgentTesla
e788686b2a0e0efbf94e3f33a47e63494ca216e965191d82cd2922b8af6fe037
AgentTesla
e998f0cbd6aef5d5efa2405caccf5594bdff5e18383a8aeccc26caa6b49a1ee0
AgentTesla
+ 963 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  6/10
Tags:
persistence
Link:
https://tria.ge/reports/201105-7x2kl28haj/
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
Unpacked files
SH256 hash:
b773e7747964734aaa38b4e15384465fabd6a354c6f275542770a9d4fd490752
MD5 hash:
326aa18f0c9aaa73130ca4a959d33fc1
SHA1 hash:
0600862804822d00966a1a56db4d5da4d0b755a7
Link:
https://www.unpac.me/results/02f6424c-ac12-4078-bb7b-eaf88115ca3c/
SH256 hash:
e3845576b78339d98b4890ca299d5b03be4c2db18293dcc6c29297fd9685c754
MD5 hash:
c8173980bf5541d50bdad1be2a1d343e
SHA1 hash:
1601a8b16cfa64c7a668fdeba129bbdaf92a4420
Link:
https://www.unpac.me/results/02f6424c-ac12-4078-bb7b-eaf88115ca3c/
SH256 hash:
2ba7b5d83ce61ab58ccc9314bbe5f659d0026da5ce9b80c3abd43649a7c93cf4
MD5 hash:
6665d84d90f5173f886a6d42df35fd2e
SHA1 hash:
8d99d3a983533ee16166f5bc9174fc59fa839683
Link:
https://www.unpac.me/results/02f6424c-ac12-4078-bb7b-eaf88115ca3c/
SH256 hash:
bac5797bde4b2810766a40d95bcdb825ac5b395fcbadd139daa19a44a6cdc049
MD5 hash:
a92cc1f6e0a2742350dfda6726db14c0
SHA1 hash:
e5404e3ed46498deb8ad8966a774540c2b8e9c1e
Link:
https://www.unpac.me/results/02f6424c-ac12-4078-bb7b-eaf88115ca3c/
SH256 hash:
431c9f8b4b58782d7f9ebeccb1b3a18357667fef8293571cf01aa72f98720df2
MD5 hash:
03dd9baefe4922af6c7f6d569ea70cb7
SHA1 hash:
b707c5b21eb2764b13d3a486436d44c4b1fb55d5
Link:
https://www.unpac.me/results/02f6424c-ac12-4078-bb7b-eaf88115ca3c/
Please note that we are no longer able to provide a coverage score for Virus Total.

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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/83275/

Comments