MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 139b45e28f607540025fe34f231747fdbb1e4898dae4ecfa1201a549b3380a11. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 139b45e28f607540025fe34f231747fdbb1e4898dae4ecfa1201a549b3380a11
SHA3-384 hash: 65fe870de8ef811360ffa4896821ff3b7f78ccf11569b2b94a25a5cc9087c4ecaf22be178a908860d4720f62d64b97f9
SHA1 hash: 5e87fdd956f2f7a2dffd774774647dc931e32c7c
MD5 hash: 2997d74aa3b64374a789aa124eb154b2
humanhash: william-magazine-high-kansas
File name:SBV210530.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:646'656 bytes
First seen:2021-06-07 09:14:12 UTC
Last seen:2021-06-07 09:52:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:scEAE7krBNkoTbcOEufctcnWADJHhR5Zscz:sLktNDbcOhfpnWADJHhRB
Threatray 5'640 similar samples on MalwareBazaar
TLSH AFD4022426F9D16DEEBA4BB170E0657127A63D272102F64899C17FFA3712F438501AFB
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
146
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SBV210530.exe
Verdict:
Malicious activity
Analysis date:
2021-06-07 09:15:50 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/171cba6d-06e9-4fa1-b31c-7b096f52b1cc

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/164951/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.37053224.5107.21256.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
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/797976
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code contains very large strings
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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)
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)
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: 430374 Sample: SBV210530.exe Startdate: 07/06/2021 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Multi AV Scanner detection for dropped file 2->49 51 9 other signatures 2->51 7 SBV210530.exe 6 2->7         started        11 kprUEGC.exe 5 2->11         started        13 kprUEGC.exe 4 2->13         started        process3 file4 29 C:\Users\user\AppData\...DrDinzlFE.exe, PE32 7->29 dropped 31 C:\Users\user\AppData\Local\...\tmpF6AB.tmp, XML 7->31 dropped 33 C:\Users\user\AppData\...\SBV210530.exe.log, ASCII 7->33 dropped 53 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->53 55 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->55 57 Uses schtasks.exe or at.exe to add and modify task schedules 7->57 15 SBV210530.exe 2 5 7->15         started        19 schtasks.exe 1 7->19         started        59 Multi AV Scanner detection for dropped file 11->59 61 Injects a PE file into a foreign processes 11->61 21 schtasks.exe 1 11->21         started        23 kprUEGC.exe 11->23         started        signatures5 process6 file7 35 C:\Users\user\AppData\Roaming\...\kprUEGC.exe, PE32 15->35 dropped 37 C:\Windows\System32\drivers\etc\hosts, ASCII 15->37 dropped 39 C:\Users\user\...\kprUEGC.exe:Zone.Identifier, ASCII 15->39 dropped 41 Modifies the hosts file 15->41 43 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->43 25 conhost.exe 19->25         started        27 conhost.exe 21->27         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/139b45e28f607540025fe34f231747fdbb1e4898dae4ecfa1201a549b3380a11/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-06-06 21:13:43 UTC
AV detection:
7 of 46 (15.22%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=conulyupmb2uaas74nhsgf2h7w5r4sey3lsoz6qsagsutmzybiiq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
4c69589ded9f474d14d6d9127d5a06ed5ff0aa8fba90711b265fa9cf3fd0a5c8
AgentTesla
78008d64624218312c132200cdf40e1b516c94d43beac16474b156fc0425a10b
AgentTesla
8607e20a0ecebc432c593b19b11354cafcddf7658bf0dcd8547dee3ad9872471
AgentTesla
8e0a42940b1c3699bf4c04814773e6c9969b75225295560b4a112e210e63851a
AgentTesla
9d4101435d5c761e583b31dd48ddcd5bce7081ae2e290f04330e6c4dbf954c92
AgentTesla
aa3fd5cbc23ac2bc4be0b2a6c5ac09700e26e8403f37c4b3ad8342edea9e06bf
AgentTesla
b1db9b45aa4903a5d9086d759765f4cb76a23e601c7bfd8133d440cace108307
AgentTesla
da1572b871bcc28eb8469433a7cde5e1a231bf262ea4be9e282201ecf400481a
AgentTesla
ee7a0cf007ee363a95866367044de119f54cd342775f2c5ab278ee1ea0d9ec48
AgentTesla
ef73a5f8ceb7220d18ea3d2b22fbf948e7bc290f25c79bb68f29e2be30bd3068
AgentTesla
+ 5'630 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/210607-czv6rpbn16/
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
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
5bede9eedf6ae6df5a9d587c116c9583b31474c159c2b53486b000093cb3fde6
MD5 hash:
072eeac61b35d3f09edee4ff4f80f52d
SHA1 hash:
696fd9905a47e526470c2e234fef32f1ec1b74ad
Link:
https://www.unpac.me/results/2161edd0-dcc4-45cb-8bc8-344b170f2d64/
SH256 hash:
ae5a18987996535b2713012d2d20ad53a10c5acbef17fe1d27d03de4456514e4
MD5 hash:
00f4f47d8fd1a4de53fea83366c66cc9
SHA1 hash:
56b75fcd3bcc5c1038d723f48d6978214f66128d
Link:
https://www.unpac.me/results/2161edd0-dcc4-45cb-8bc8-344b170f2d64/
SH256 hash:
6162b712e93f433749e8cf78c10df68e658c6b55936a290abd73f347943b0938
MD5 hash:
3613610f685ad60fb1d6df5d5067afb2
SHA1 hash:
45cf476028db35817b01ce03de2abaeac739dd22
Link:
https://www.unpac.me/results/2161edd0-dcc4-45cb-8bc8-344b170f2d64/
SH256 hash:
139b45e28f607540025fe34f231747fdbb1e4898dae4ecfa1201a549b3380a11
MD5 hash:
2997d74aa3b64374a789aa124eb154b2
SHA1 hash:
5e87fdd956f2f7a2dffd774774647dc931e32c7c
Link:
https://www.unpac.me/results/2161edd0-dcc4-45cb-8bc8-344b170f2d64/
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/139b45e28f607540025fe34f231747fdbb1e4898dae4ecfa1201a549b3380a11

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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

Executable exe 139b45e28f607540025fe34f231747fdbb1e4898dae4ecfa1201a549b3380a11

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/164951/

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