MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3efff040730dd6af8c66d93e0c2bb96273051264abb10182c1c5831b5d7ffcc. 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: b3efff040730dd6af8c66d93e0c2bb96273051264abb10182c1c5831b5d7ffcc
SHA3-384 hash: b84fc86aa64121d765984860727de26ff73b078123bdd69cb4a068e7747f6865bb7144a3ddec91a6731f1959e4461e79
SHA1 hash: 32c5b93d910357513ee1c0f0ac18a7a3294f8f78
MD5 hash: 0c8c0389648196cef02cbdaa2643bf52
humanhash: coffee-south-network-arizona
File name:Shipping document.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:649'728 bytes
First seen:2021-01-04 13:17:00 UTC
Last seen:Never
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:p1s5pqUfyXcEEnm6XNBpsxvNZyhPnnWuwvt4z8/iHBJKow:8bqUecrmexIvOhPnF042T
Threatray 2'058 similar samples on MalwareBazaar
TLSH A7D4AE22A7A8AF55F0BFB73599344440E3F8B84BD722C27D7CE590CE5A61E408A71736
Reporter abuse_ch
Tags:AgentTesla DHL exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: silverworldbd.com
Sending IP: 117.58.240.175
From: DHL express delivery <belayet@saifpowertec.com>
Reply-To: 1louiking@gmail.com
Subject: DHL Express Delivery
Attachment: Shipping document.arj (contains "Shipping document.exe")

AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
245
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Shipping document.exe
Verdict:
Malicious activity
Analysis date:
2021-01-04 13:22:07 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/71c0b0dd-e867-4d17-a128-ded7c9ca7a9f

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/110395/
Detection(s):
SecuriteInfo.com.Artemis0C8C03896481.13061.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/573354
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to register a low level keyboard hook
Found malware configuration
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
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 335739 Sample: Shipping document.exe Startdate: 04/01/2021 Architecture: WINDOWS Score: 100 31 Found malware configuration 2->31 33 Multi AV Scanner detection for dropped file 2->33 35 Sigma detected: Scheduled temp file as task from temp location 2->35 37 10 other signatures 2->37 7 Shipping document.exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\...\JGcGTvOPHAgPE.exe, PE32 7->19 dropped 21 C:\...\JGcGTvOPHAgPE.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmp3B2A.tmp, XML 7->23 dropped 25 C:\Users\user\...\Shipping document.exe.log, ASCII 7->25 dropped 39 Writes to foreign memory regions 7->39 41 Allocates memory in foreign processes 7->41 43 Injects a PE file into a foreign processes 7->43 11 RegSvcs.exe 6 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 us2.smtp.mailhostbox.com 208.91.199.225, 49766, 49768, 587 PUBLIC-DOMAIN-REGISTRYUS United States 11->27 29 192.168.2.1 unknown unknown 11->29 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->47 49 Tries to steal Mail credentials (via file access) 11->49 51 5 other signatures 11->51 17 conhost.exe 15->17         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b3efff040730dd6af8c66d93e0c2bb96273051264abb10182c1c5831b5d7ffcc/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-01-04 10:07:55 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wpx76bahgdowv6ggnwj6bqv3syttaujgjk5ragbmdrmddnox77ga._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
02392a754fd967d6ac72ee206b6ac9c3b3aab634abc9c49edb46a6b81ee828e6
AgentTesla
0b0497a471a34be0ac2c4719719527d6a73b4a0ad0d7b8f43d9c9af5119ce9cd
AgentTesla
0e5b4d05befcb80a772b1a58c0673577c51363aaf56d576ceff315c04cd0ca61
AgentTesla
a51bd84d3facb55aaa7d351f79a6383f50b362c48a7abf373675aedd13aa9770
AgentTesla
abe6a77fefdede7de287d151689f87a3f59eb496d94351f4085b3bc1a6b755c2
AgentTesla
af1ce5c2a758843b6812b25d3f7646fe186575c7b06510cf8fdbcbe1f827c0c9
AgentTesla
d2adec41dcdb2142c210a4025572e29e1c011d079fa04504b35ab55c03376a16
AgentTesla
d5fa02045d60d623dacb74b1a719e571982f6a68ea7781c06f8d0ce104b98bd6
AgentTesla
e91e1bd30e4c5fddbd53ad55edacce8d453b7a74870e29418428324fc0f62cca
AgentTesla
f90cf6686fcfe69bb074cf65a5b7e19c8e97b1351377faa7a2477577d4171de8
AgentTesla
+ 2'048 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/210104-3zj9wctalj/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
b3efff040730dd6af8c66d93e0c2bb96273051264abb10182c1c5831b5d7ffcc
MD5 hash:
0c8c0389648196cef02cbdaa2643bf52
SHA1 hash:
32c5b93d910357513ee1c0f0ac18a7a3294f8f78
Link:
https://www.unpac.me/results/cfcf9810-ae29-439c-86fc-7da934ee906e/
SH256 hash:
a2a5a23d019dee1f27728dba0e2a8c023c122728cdc712a6ce5137a0cf063947
MD5 hash:
f7c8563211685d6c6527ed2df0cfbbb6
SHA1 hash:
01bf8aef150d27d8a93170806c174cdd394a53e3
Link:
https://www.unpac.me/results/cfcf9810-ae29-439c-86fc-7da934ee906e/
SH256 hash:
44106a7753790a12c522849b3f7da238337bd0342e5664021e25f79b2705ae9a
MD5 hash:
d43e8dcc8f8b23c144f820eaa9bdbee4
SHA1 hash:
41faa61eb543ac1386e59ef1e3c485a19458ff68
Link:
https://www.unpac.me/results/cfcf9810-ae29-439c-86fc-7da934ee906e/
SH256 hash:
1cc63b59018cc58595823a6ceec43161759453c3fe04958beb546786738615e7
MD5 hash:
03023dc551f6961ba428466eea4353b4
SHA1 hash:
c07856b566980c947424466dacbedd092c3ec0fb
Link:
https://www.unpac.me/results/cfcf9810-ae29-439c-86fc-7da934ee906e/
SH256 hash:
b000aff0b389faf63e4d14df4a66015acb662c83a6bddbaed924a00ca5b1016a
MD5 hash:
b1184213d9462cd16fba37356842c498
SHA1 hash:
ea9d3b7fc270bba881c1c0466f937b08e61edbdf
Link:
https://www.unpac.me/results/cfcf9810-ae29-439c-86fc-7da934ee906e/
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/b3efff040730dd6af8c66d93e0c2bb96273051264abb10182c1c5831b5d7ffcc

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

arj 508dfcfcc57bf069f61c152d92e1f8b4b216918710dbcfd44f1b673832fb94bf

AgentTesla

Executable exe b3efff040730dd6af8c66d93e0c2bb96273051264abb10182c1c5831b5d7ffcc

(this sample)

  
Dropped by
MD5 7a53d60cb6f0014e0133389a4ac46e47
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/110395/
  
Dropped by
SHA256 508dfcfcc57bf069f61c152d92e1f8b4b216918710dbcfd44f1b673832fb94bf

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