MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4248a8c899ffd31c3b3771124b5aa9ddc5320bf5b4c274990969a663cda33c01. 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: 12


Intelligence 12 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4248a8c899ffd31c3b3771124b5aa9ddc5320bf5b4c274990969a663cda33c01
SHA3-384 hash: e2db5526e7ffdb97ffc56366321aa75f8bf3eb6c17ff80fc28f0264c6e1472a03311d13195ee119ef267434d04c4d000
SHA1 hash: b2c5fe1cdd6b50563d88d74ba4c2a5070401110f
MD5 hash: 7864fb0b03ee179f129ac268e9c1e6c5
humanhash: seventeen-artist-montana-winner
File name:SWIFT MT103.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'166'336 bytes
First seen:2021-10-18 07:53:19 UTC
Last seen:2021-10-18 09:08:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:Ha9y2jffBSkkkkkkkkkkkkkkx9L+kIkkvkkkkkkkk7ZLXRckY8PDsMm9fbzV0yI8:2DklIbm1vM4Oy9kao
Threatray 11'930 similar samples on MalwareBazaar
TLSH T17C45B615B3DE689FD457463240D019A39E003DB2A51AC32EEA7379E719BDF814B08BDE
File icon (PE):PE icon
dhash icon 18c580ba2260e001 (11 x AgentTesla)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
178
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
email (6).eml
Verdict:
Malicious activity
Analysis date:
2021-10-18 09:11:17 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ba9de5d5-116b-48db-b1ec-84fa0363a1a8

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/198057/
Detection(s):
SecuriteInfo.com.Trojan.Win32.starter.ali1000139.31474.17201.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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 system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/616d281ddb358dd15ebead76/reports/18877d9c-524b-4302-8012-26057bc39abc/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/299b2169-6222-4210-8922-1f582d936042
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/872040
Signature
.NET source code contains very large array initializations
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
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 504463 Sample: SWIFT MT103.exe Startdate: 18/10/2021 Architecture: WINDOWS Score: 100 36 mail.adityagroup.co 2->36 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Found malware configuration 2->48 50 Yara detected AgentTesla 2->50 52 2 other signatures 2->52 8 SWIFT MT103.exe 6 2->8         started        12 tKZVPq.exe 2 2->12         started        14 tKZVPq.exe 1 2->14         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\tmpA65F.tmp, XML 8->32 dropped 34 C:\Users\user\AppData\...\bWreqUBBeQL.exe, PE32 8->34 dropped 54 Writes to foreign memory regions 8->54 56 Injects a PE file into a foreign processes 8->56 16 RegSvcs.exe 2 4 8->16         started        20 schtasks.exe 1 8->20         started        22 conhost.exe 12->22         started        24 conhost.exe 14->24         started        signatures6 process7 file8 28 C:\Users\user\AppData\Roaming\...\tKZVPq.exe, PE32 16->28 dropped 30 C:\Windows\System32\drivers\etc\hosts, ASCII 16->30 dropped 38 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->38 40 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 16->40 42 Modifies the hosts file 16->42 44 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->44 26 conhost.exe 20->26         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4248a8c899ffd31c3b3771124b5aa9ddc5320bf5b4c274990969a663cda33c01/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-18 07:54:07 UTC
AV detection:
12 of 45 (26.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ijekrsez77jryozxoejewwvj3xctec7vwtbhjgijngtghtndhqaq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
6207ef2afeb35589b4c9f58ac7557ffb9670c81376f436b149ad8ca45a7630f7
AgentTesla
6c774012ef6641580ad729f00e565e5ab5a13e7eeca97b510f2e2e9e101b9375
AgentTesla
71e6c949b0e259018b39ad513305c9197afe74c9d68119db8e6e545c74ceedcb
AgentTesla
790b008421852f555794a5e59c91f894993dcac641104ca06087bda8c1b5ea50
AgentTesla
9664d7052873349992d586788296c16579941a802a41b70afdc08867b2153d65
AgentTesla
d375f6f780b9623c85714c9fadae46359a8e308bdeaee7e2161a86c0a89c7d06
AgentTesla
e783beaf61c430d61faec9757962fc8a5314e850e587a7e59dea952f8d25bc97
AgentTesla
eea3133976792cc3fd1254576e96ff037a73de96b68ca20767d085eec27a24f1
AgentTesla
+ 11'920 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/211018-jrj1gseahq/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
b44c761ce8089133b3d09629d773aba0a30743444b8bcbcd5eef117ca16d681b
MD5 hash:
53a21251956f0c782b91d0736deed2a8
SHA1 hash:
739da17a72947aa416791bd42a5bc8afa3f7db57
Link:
https://www.unpac.me/results/dfafa624-90cb-402a-8e1e-a30ee71a3f84/
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
Link:
https://www.unpac.me/results/dfafa624-90cb-402a-8e1e-a30ee71a3f84/
SH256 hash:
dbda48c3a34fc73ed2ef0172560d8489c5d58ecb10df84ebf2aba2153ed988df
MD5 hash:
731e3c1cae045cf7f10016d716206a48
SHA1 hash:
306d77dde0b5177ad55d94bce3ecbb4f273113af
Link:
https://www.unpac.me/results/dfafa624-90cb-402a-8e1e-a30ee71a3f84/
SH256 hash:
4248a8c899ffd31c3b3771124b5aa9ddc5320bf5b4c274990969a663cda33c01
MD5 hash:
7864fb0b03ee179f129ac268e9c1e6c5
SHA1 hash:
b2c5fe1cdd6b50563d88d74ba4c2a5070401110f
Link:
https://www.unpac.me/results/dfafa624-90cb-402a-8e1e-a30ee71a3f84/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/4248a8c899ff/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/4248a8c899ffd31c3b3771124b5aa9ddc5320bf5b4c274990969a663cda33c01

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Create hunting rule
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 4248a8c899ffd31c3b3771124b5aa9ddc5320bf5b4c274990969a663cda33c01

(this sample)

  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/198057/

Comments