MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1b51cd2f512acccdcff756a2efc57de5776cf017698334c654116095f75d321. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1b51cd2f512acccdcff756a2efc57de5776cf017698334c654116095f75d321
SHA3-384 hash: 33e8ab445eccd65cd88e4d4b767ccea8433dfdf7642ba0650995da0dadc21c0eeeef7fe082eeecf71b2bc2f7f80d5f6d
SHA1 hash: 3e58ad4e65d6d36d6f21703b025c11a27f55e057
MD5 hash: f1917401b2a703e85183f93fdb2a0aa3
humanhash: high-island-low-twenty
File name:new FOB order.scr
Download: download sample
Signature AgentTesla
Create hunting rule
File size:599'040 bytes
First seen:2023-05-17 16:35:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:UYjv5PMRJT8cjr9fN3AJfM0UJlkeEVcrgMqQb0jJmA1H:JpkQcjr9flAO0UJyJVp8olma
TLSH T18CD4D070609E4B91E01BCBB176B8FC32033170F39AD9D9750B79A1C4CE6AF546E84A5B
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:AgentTesla exe scr Telegram

Intelligence

File Origin
# of uploads :
1
# of downloads :
331
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
new FOB order.scr
Verdict:
Malicious activity
Analysis date:
2023-05-17 16:36:08 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/002ca9d7-62d6-4a8c-b801-af0152c938cf

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
XorStringsNET
Create hunting rule
Link:
https://www.capesandbox.com/analysis/390767/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1966.13729.5362.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
barys comodo lokibot packed
Link:
https://www.filescan.io/uploads/646502742fe8bc4707a9bbad/reports/620d2a38-f93b-4b5b-af9a-86b1c9556a8e/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a1b51cd2f512acccdcff756a2efc57de5776cf017698334c654116095f75d321
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f71e2daf-e172-4b54-9ee0-ed85947ce73b
Result
Threat name:
AgentTesla, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1235486
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected Telegram RAT
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 868477 Sample: new_FOB_order.scr.exe Startdate: 17/05/2023 Architecture: WINDOWS Score: 100 63 api.telegram.org 2->63 79 Snort IDS alert for network traffic 2->79 81 Found malware configuration 2->81 83 Malicious sample detected (through community Yara rule) 2->83 85 10 other signatures 2->85 8 new_FOB_order.scr.exe 7 2->8         started        12 fznKmQfGwWST.exe 5 2->12         started        14 Ksbblx.exe 2->14         started        16 Ksbblx.exe 2->16         started        signatures3 process4 file5 55 C:\Users\user\AppData\...\fznKmQfGwWST.exe, PE32 8->55 dropped 57 C:\Users\...\fznKmQfGwWST.exe:Zone.Identifier, ASCII 8->57 dropped 59 C:\Users\user\AppData\Local\...\tmp6303.tmp, XML 8->59 dropped 61 C:\Users\user\...\new_FOB_order.scr.exe.log, ASCII 8->61 dropped 97 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->97 99 May check the online IP address of the machine 8->99 101 Uses schtasks.exe or at.exe to add and modify task schedules 8->101 103 Adds a directory exclusion to Windows Defender 8->103 18 new_FOB_order.scr.exe 17 5 8->18         started        23 powershell.exe 19 8->23         started        35 2 other processes 8->35 105 Multi AV Scanner detection for dropped file 12->105 107 Machine Learning detection for dropped file 12->107 25 fznKmQfGwWST.exe 12->25         started        27 schtasks.exe 12->27         started        29 Ksbblx.exe 14->29         started        31 schtasks.exe 14->31         started        33 Ksbblx.exe 16->33         started        37 2 other processes 16->37 signatures6 process7 dnsIp8 65 api4.ipify.org 173.231.16.76, 443, 49707, 49709 WEBNXUS United States 18->65 67 api.telegram.org 149.154.167.220, 443, 49708, 49711 TELEGRAMRU United Kingdom 18->67 69 api.ipify.org 18->69 51 C:\Users\user\AppData\Roaming\...\Ksbblx.exe, PE32 18->51 dropped 53 C:\Users\user\...\Ksbblx.exe:Zone.Identifier, ASCII 18->53 dropped 87 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->87 89 Tries to steal Mail credentials (via file / registry access) 18->89 91 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->91 39 conhost.exe 23->39         started        71 api.ipify.org 25->71 93 Tries to harvest and steal browser information (history, passwords, etc) 25->93 95 Installs a global keyboard hook 25->95 41 conhost.exe 27->41         started        73 api.ipify.org 29->73 43 conhost.exe 31->43         started        75 104.237.62.211, 443, 49710 WEBNXUS United States 33->75 77 api.ipify.org 33->77 45 conhost.exe 35->45         started        47 conhost.exe 35->47         started        49 conhost.exe 37->49         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a1b51cd2f512acccdcff756a2efc57de5776cf017698334c654116095f75d321/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-05-16 09:10:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
25 of 37 (67.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ug2rzuxvckwmzxh7ovvc57cx3zlxntybo2mdgtdfielasx3v2mqq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230517-t38hbseg8w/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot2107727636:AAGtenJYFQWUHBz27lev7d_3slnNyCuUhxc/
Unpacked files
SH256 hash:
6dd2fcc6ea6e34271413235563826eda0536ef8beb79383a407de437713a3ecd
MD5 hash:
de4c491321e320f4ec34dbd51087df3f
SHA1 hash:
d7247a74c6dc79b4475e46f3ad0c6ff8036ed5ca
Link:
https://www.unpac.me/results/e9e78952-2265-48bf-93e8-53b83220cec8/
SH256 hash:
0aa5d5ffecc61c810f36e740222988770d5de212db1bc8f654627a2f8e35f7d9
MD5 hash:
6f26ef9a980c326157cb306adfcf8474
SHA1 hash:
ca9f71852cfdd40ccacbdfa65814c8adb69dc6c8
Link:
https://www.unpac.me/results/e9e78952-2265-48bf-93e8-53b83220cec8/
SH256 hash:
74012c76cb2fb43fc30000d7b43ba354ccd586318060bb55bd093bc28920c6eb
MD5 hash:
50987dd66c6266046f8965f95d602fb3
SHA1 hash:
aff0563671f91a1ca50a8236f6f584e1b60e2d56
Detections:
AgentTeslaXorStringsNet
Create hunting rule
Link:
https://www.unpac.me/results/e9e78952-2265-48bf-93e8-53b83220cec8/
Parent samples :
11b1fdbb6834a0348d8f4357ff39d363953e399b8221c3b7d635d7e66b9a5ce5
a1b51cd2f512acccdcff756a2efc57de5776cf017698334c654116095f75d321
701a8cc94a1cab0f2870b4739f00cd41230525ee120cd906187bb0bc74bf6ac4
SH256 hash:
16c255190eaaf1b60ec7d07abcac5f614ea197cee2416ca9d01bb563c526c87d
MD5 hash:
fb4ed205b442f470bbf10913128efdcb
SHA1 hash:
9a0a4c5ae429769e3253a9a3daefa24270b87a5b
Link:
https://www.unpac.me/results/e9e78952-2265-48bf-93e8-53b83220cec8/
Parent samples :
ee57b6fa1e5a3c5ef776b79f32820327bcb3fe1974eeddf65c0eb56131193397
de8c7c543f438af1e7e78096f6873268e9b1a12745edf9c88db07e136163399e
SH256 hash:
a7485443b331c2fca54197f53638cb11a8c82bac339b66f35b95d0ad0aceb438
MD5 hash:
dfca41d2838170cb07ef445bb7d9c987
SHA1 hash:
7622672bed23f065cafdf2a17879ebf5926aba8b
Link:
https://www.unpac.me/results/e9e78952-2265-48bf-93e8-53b83220cec8/
SH256 hash:
a1b51cd2f512acccdcff756a2efc57de5776cf017698334c654116095f75d321
MD5 hash:
f1917401b2a703e85183f93fdb2a0aa3
SHA1 hash:
3e58ad4e65d6d36d6f21703b025c11a27f55e057
Link:
https://www.unpac.me/results/e9e78952-2265-48bf-93e8-53b83220cec8/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a1b51cd2f512/report/overview.html
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/a1b51cd2f512acccdcff756a2efc57de5776cf017698334c654116095f75d321

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

Executable exe a1b51cd2f512acccdcff756a2efc57de5776cf017698334c654116095f75d321

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/390767/

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