MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4026c7d6a31ceecfdf55ca0a67433809cbe346e0ec5a494a1d45e44d8659ee91. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4026c7d6a31ceecfdf55ca0a67433809cbe346e0ec5a494a1d45e44d8659ee91
SHA3-384 hash: b1792b08b842d4f8cb52b5f6fa3635c2b8c5ad026f4857a8b29764fdfb2be580d4ecbcefe04421debfb962d298deaf23
SHA1 hash: e0f9d617106dd665f5cabaaf7359bd2ce0f80271
MD5 hash: 4433627ac7140fd9ac0b70ae167a70ae
humanhash: utah-hotel-eight-fruit
File name:BL. AWSMUNDAR3606-21.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:643'584 bytes
First seen:2021-12-01 11:24:22 UTC
Last seen:2021-12-02 14:16:50 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 12288:o4RH6GpOTnCgRYnXjNPH8xoaiEPx81x72W:zHKuz5cxoaW2
Threatray 13'176 similar samples on MalwareBazaar
TLSH T13ED4125CB6FCF913D6F906FA8642908127F0E1396192E3CB8CD9A5F717D2F994810A93
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
6
# of downloads :
124
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
BL. AWSMUNDAR3606-21.exe
Verdict:
Malicious activity
Analysis date:
2021-12-01 11:27:10 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c06aa614-01ac-4e40-bcc9-5f52649c44a3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/210266/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1124.2262.17221.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61a75b92852820c591cad58c/reports/f8a6538f-9d47-40ad-ac4b-e9cb6400a528/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/bd58069e-afda-45c0-a9e7-7752835728ed
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/899335
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Found malware configuration
Injects a PE file into a foreign processes
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: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 531813 Sample: BL. AWSMUNDAR3606-21.exe Startdate: 01/12/2021 Architecture: WINDOWS Score: 100 33 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->33 35 Found malware configuration 2->35 37 Yara detected AgentTesla 2->37 39 10 other signatures 2->39 7 BL. AWSMUNDAR3606-21.exe 7 2->7         started        process3 file4 27 C:\Users\user\AppData\...\grafEnspxUFRLb.exe, PE32 7->27 dropped 29 C:\Users\user\AppData\Local\...\tmp6DA1.tmp, XML 7->29 dropped 41 Adds a directory exclusion to Windows Defender 7->41 43 Injects a PE file into a foreign processes 7->43 11 BL. AWSMUNDAR3606-21.exe 7->11         started        15 powershell.exe 23 7->15         started        17 powershell.exe 25 7->17         started        19 schtasks.exe 7->19         started        signatures5 process6 dnsIp7 31 mail.packsealsind.com 162.241.148.56, 49827, 587 UNIFIEDLAYER-AS-1US United States 11->31 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Tries to steal Mail credentials (via file / registry access) 11->47 49 Tries to harvest and steal ftp login credentials 11->49 51 Tries to harvest and steal browser information (history, passwords, etc) 11->51 21 conhost.exe 15->21         started        23 conhost.exe 17->23         started        25 conhost.exe 19->25         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4026c7d6a31ceecfdf55ca0a67433809cbe346e0ec5a494a1d45e44d8659ee91/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-01 11:25:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iatmpvvddtxm7x2vzifgoqzybhf6grxa5rnessq5ixse3bsz52iq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0c6d57557120decedc9a102794ea95bcaf64529eb1f18058e4df62c34b724988
AgentTesla
21e7d2b0b0cdc0e064fe870f57b85575bb6bb079ffe72640bf0493c2bbc6544c
AgentTesla
5489bee07301a4d59ea4210dd7c5efd6030feb57a6ede6a9d670d21340c6746c
AgentTesla
6faebec8aa383683e58352a37735ddad2d4137e757080a0d4f781f411e0ed6b3
AgentTesla
8079c489c34ad2b7412bd0fcaf69d31639827d60f35d7f8c0df6c58b293e91d1
AgentTesla
88273e3c8b21831b5e66320d0abadc521ab5e435b3ee82f2d537bcee048b6572
AgentTesla
df5f68505b5c34a2d0283effd3a88a2ce2b1e9d95fe0fd77aa20ff52f1c089c6
AgentTesla
e064cd70ae6467ad9c0342b4750cae4fb688c56b0d904ea4091aa074e174dcf0
AgentTesla
ead0f6ef88c149f4318129ed6e3ef5fb30bd2ab03afef3625ca08d1b2f6f180e
AgentTesla
+ 13'166 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/211201-njat3aefg6/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
b19104b568ca3ddccc2a8d3d10ecddb1ea240171e798dc3a486292cfa14b6365
MD5 hash:
7b0900da932f4ed9630d65b04422736d
SHA1 hash:
6fa340436e3a8e73ae2b3e911f861483183c68ef
Link:
https://www.unpac.me/results/116a30ba-ba8a-4983-bf67-f53a890b337c/
SH256 hash:
48de0c38ae26711c68e27728f5a352060a24cb97bd8c4dc64c6edb0caaa1ccb3
MD5 hash:
42bf18a50679aa811116f385dc81593a
SHA1 hash:
6e5bb1cc4059e59ba9fe1f0ade42c445e0917e41
Link:
https://www.unpac.me/results/116a30ba-ba8a-4983-bf67-f53a890b337c/
SH256 hash:
4026c7d6a31ceecfdf55ca0a67433809cbe346e0ec5a494a1d45e44d8659ee91
MD5 hash:
4433627ac7140fd9ac0b70ae167a70ae
SHA1 hash:
e0f9d617106dd665f5cabaaf7359bd2ce0f80271
Link:
https://www.unpac.me/results/116a30ba-ba8a-4983-bf67-f53a890b337c/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/4026c7d6a31c/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/4026c7d6a31ceecfdf55ca0a67433809cbe346e0ec5a494a1d45e44d8659ee91

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
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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 4026c7d6a31ceecfdf55ca0a67433809cbe346e0ec5a494a1d45e44d8659ee91

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/210266/

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