MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 672a61ad27f7bafa74b86dffa95262a18256d48cf3f1aa74c5b6907cefd9cad1. 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: 672a61ad27f7bafa74b86dffa95262a18256d48cf3f1aa74c5b6907cefd9cad1
SHA3-384 hash: c7f549016ea3db592e3b4ac7aae4f0c03172ffef80e4392aa1dc17ae61e1ffdf5a9ebea0cd36a51713c3abfaadc09471
SHA1 hash: 62601ec1ef7f4d5b2798a66569949af2472f840d
MD5 hash: dfe5748f943985a734cb30bedb7b45f0
humanhash: bakerloo-iowa-friend-potato
File name:Delivery Form C.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'103'872 bytes
First seen:2021-03-25 06:50:02 UTC
Last seen:2021-03-25 07:05:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:OGbFkPWYpYwHuaFP16m9YogAjmFej+EETY:OQFIWY1OanjmFeyE
Threatray 3'464 similar samples on MalwareBazaar
TLSH D535AE3950E62AD6E8B6CFB28D919106FFE30C117981860ED5A136E11373792E58E1FF
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
127
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Delivery Form C.exe
Verdict:
Malicious activity
Analysis date:
2021-03-25 06:51:12 UTC
Tags:
keylogger stealer agenttesla
Link:
https://app.any.run/tasks/3d9f9b56-a72f-4eb7-a876-bc8ca1eb9de7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Dropper-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
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
Enabling autorun by creating a file
Unauthorized injection to a system process
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.
Gathering data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/653395
Signature
.NET source code contains very large array initializations
.NET source code contains very large strings
Allocates memory in foreign processes
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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 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 AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 375639 Sample: Delivery Form C.exe Startdate: 25/03/2021 Architecture: WINDOWS Score: 100 43 smtp.yandex.ru 2->43 53 Found malware configuration 2->53 55 Multi AV Scanner detection for dropped file 2->55 57 Sigma detected: Scheduled temp file as task from temp location 2->57 59 9 other signatures 2->59 8 Delivery Form C.exe 6 2->8         started        12 NewApp.exe 4 2->12         started        14 NewApp.exe 3 2->14         started        signatures3 process4 file5 33 C:\Users\user\AppData\...\mtXcpfRqLQenNr.exe, PE32 8->33 dropped 35 C:\Users\user\AppData\Local\...\tmp7C60.tmp, XML 8->35 dropped 37 C:\Users\user\...\Delivery Form C.exe.log, ASCII 8->37 dropped 61 Writes to foreign memory regions 8->61 63 Allocates memory in foreign processes 8->63 65 Injects a PE file into a foreign processes 8->65 16 RegSvcs.exe 2 6 8->16         started        21 schtasks.exe 1 8->21         started        23 conhost.exe 12->23         started        25 conhost.exe 14->25         started        signatures6 process7 dnsIp8 39 smtp.yandex.ru 77.88.21.158, 25, 49712, 49716 YANDEXRU Russian Federation 16->39 41 192.168.2.1 unknown unknown 16->41 29 C:\Users\user\AppData\Roaming\...29ewApp.exe, PE32 16->29 dropped 31 C:\Windows\System32\drivers\etc\hosts, ASCII 16->31 dropped 45 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->45 47 Tries to steal Mail credentials (via file access) 16->47 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 16->49 51 5 other signatures 16->51 27 conhost.exe 21->27         started        file9 signatures10 process11
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/672a61ad27f7bafa74b86dffa95262a18256d48cf3f1aa74c5b6907cefd9cad1/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-25 05:16:33 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
25 of 48 (52.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=m4vgdljh665pu5fynx72sutcugbfnvem6py2u5gfw2ihz36zzliq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1be6dc89ef7b01bdc6563c86c36e84b7560d85bab73d7186e2f223550461c5c4
AgentTesla
2ee367d817eaeda203c4cf930fbcc949ac75858e7a64010de16cb7cc300bc6b4
AgentTesla
31774d7c01c8f9e15a2e4de37edd51c2eb82a537a81f0c23ce9edc3acd147c12
AgentTesla
4f7f0a1c3a689a98727e06797f7b4fc2c67e843c56b7514b71145242d624f2e5
AgentTesla
945fd7f1f9295af69bb5799a43d96d370c2e38ef08b4fc9b8258031ff99723f4
AgentTesla
991385089fc81b1c12c749cd0ce2fcfe7e43393eb3b1fc673420dbf4abd553a6
AgentTesla
9cc817f0205da4bde1d938e1817aa98fe4f4a5dcbcaffbe8b45041e24c105aa0
AgentTesla
d109079330a4ac9070598c686a9a1ee1b880d9203dac4e871e3f184e7cc00484
AgentTesla
ead0f6ef88c149f4318129ed6e3ef5fb30bd2ab03afef3625ca08d1b2f6f180e
AgentTesla
f349ed3a3e5bab8bc5694ba8885e6717c049064394682b240afe62ede7f67a9e
AgentTesla
+ 3'454 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210325-h4hchxcqr6/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
304f09f81b7c527bfe818a11cb1f9bcbc6552e5300d4fa8580fd33fc562d9e13
MD5 hash:
cbefc99912e89ac1ab76a7febdfc4c77
SHA1 hash:
fe6cfe81caacfe13a0cc37a997e2d2432d97a054
Link:
https://www.unpac.me/results/3936594a-bfa8-4a40-ab05-efd001587155/
SH256 hash:
1c303b26e284e7b95b582764c5261fdf487266ad5abf2564800ec4706257c6a5
MD5 hash:
a7777885aecd33e6af7d5f2d35168555
SHA1 hash:
bcae99cde05e2f035b577c0bef97222112598067
Link:
https://www.unpac.me/results/3936594a-bfa8-4a40-ab05-efd001587155/
SH256 hash:
fdccaed76f7279e6b8cc1579dadeed03fa1b8d1adcdfbcac585a68da168366d5
MD5 hash:
8b603b23caf00139206f293eb741a9f0
SHA1 hash:
1cc90aec7ce07b13930fe0c088fe3cd155b3ea07
Link:
https://www.unpac.me/results/3936594a-bfa8-4a40-ab05-efd001587155/
SH256 hash:
672a61ad27f7bafa74b86dffa95262a18256d48cf3f1aa74c5b6907cefd9cad1
MD5 hash:
dfe5748f943985a734cb30bedb7b45f0
SHA1 hash:
62601ec1ef7f4d5b2798a66569949af2472f840d
Link:
https://www.unpac.me/results/3936594a-bfa8-4a40-ab05-efd001587155/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/672a61ad27f7bafa74b86dffa95262a18256d48cf3f1aa74c5b6907cefd9cad1

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

rar 66c620eff690d2fa0c192363cb7a67e04beb9eb1166527fdbe3f0b14eeee15f7

AgentTesla

Executable exe 672a61ad27f7bafa74b86dffa95262a18256d48cf3f1aa74c5b6907cefd9cad1

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 66c620eff690d2fa0c192363cb7a67e04beb9eb1166527fdbe3f0b14eeee15f7

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