MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a6b91c8938497e679518d6376a474f275ad7715b861fbcdc7b8429a87eeb7b62. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a6b91c8938497e679518d6376a474f275ad7715b861fbcdc7b8429a87eeb7b62
SHA3-384 hash: 88e5c3378401d9b30a091c5e2ebaa0d8a2200ec5867c1ae7c2091ca8183c772ddaa7aae27e0915b5dd5757bab4ec8c06
SHA1 hash: ed7d2ec51c51e8d757583ade36fe61b4536fd970
MD5 hash: 77bb78b08f9c95c31872ec4d11c778c4
humanhash: twelve-cold-hot-west
File name:NEW ORDER  121120.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'377'792 bytes
First seen:2021-06-18 15:14:07 UTC
Last seen:2021-06-18 15:45:25 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 24576:I6ML0ZeQCmq5u4neXSHkDm6bcJGkRkgyTlJ:KuavneWKm6bcckurTz
Threatray 5'947 similar samples on MalwareBazaar
TLSH 2955199D365075DFC85BCD36CEA41C68EA60B87A830BD607A05712ACDE4DA9BCF141F2
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
179
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
NEW ORDER  121120.exe
Verdict:
Malicious activity
Analysis date:
2021-06-18 15:17:29 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f9226d56-bbe7-44d6-a7ed-6876057892fc

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/166866/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.12762.8169.2417.UNOFFICIAL
Create hunting rule

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.
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b0966e26-b1d8-4f22-bbac-048d04a6808d
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/804414
Signature
.NET source code contains very large array initializations
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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: 436825 Sample: NEW ORDER #U00a0121120.exe Startdate: 18/06/2021 Architecture: WINDOWS Score: 100 51 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->51 53 Found malware configuration 2->53 55 Multi AV Scanner detection for dropped file 2->55 57 10 other signatures 2->57 7 NEW ORDER #U00a0121120.exe 6 2->7         started        11 kprUEGC.exe 5 2->11         started        13 kprUEGC.exe 4 2->13         started        process3 file4 35 C:\Users\user\AppData\Roaming\BedRVK.exe, PE32 7->35 dropped 37 C:\Users\user\AppData\Local\...\tmpB7E4.tmp, XML 7->37 dropped 39 C:\Users\...39EW ORDER #U00a0121120.exe.log, ASCII 7->39 dropped 59 Injects a PE file into a foreign processes 7->59 15 NEW ORDER #U00a0121120.exe 2 5 7->15         started        19 schtasks.exe 1 7->19         started        61 Multi AV Scanner detection for dropped file 11->61 63 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->63 21 schtasks.exe 1 11->21         started        23 kprUEGC.exe 2 11->23         started        25 schtasks.exe 13->25         started        27 kprUEGC.exe 13->27         started        signatures5 process6 file7 41 C:\Users\user\AppData\Roaming\...\kprUEGC.exe, PE32 15->41 dropped 43 C:\Windows\System32\drivers\etc\hosts, ASCII 15->43 dropped 45 C:\Users\user\...\kprUEGC.exe:Zone.Identifier, ASCII 15->45 dropped 47 Modifies the hosts file 15->47 49 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->49 29 conhost.exe 19->29         started        31 conhost.exe 21->31         started        33 conhost.exe 25->33         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a6b91c8938497e679518d6376a474f275ad7715b861fbcdc7b8429a87eeb7b62/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-06-18 10:45:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
62
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u24rzcjyjf7gpfiy2y3wur2pe5nno4k3qyp3zxd3qqu2q7xlpnra._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
05bdb815046e31699e7e357aa4333d07ea97456fd8752f550ffcf46e12a07ae5
AgentTesla
0a1e668f56dc34760326f1f30dff5d370116d15298887fbf69cb6c676f45af3a
AgentTesla
4c586af41cccc35228e2e1d972baa8fa4109e698577cb48302b218c0b64be21f
AgentTesla
736b41f1a5e0f7767878b4ac85e9b967290e9f186d5b6062e32b94364c944f15
AgentTesla
7440e4385f9aa92d73bd8b20d8ebf5f79f3f53e3178ff894ed79111b91aa665c
AgentTesla
7a8f3ee787e2954f90419c96cb23fba73c3fddbf980fb4fc4bf239a17244fbe7
AgentTesla
81dd9cd9c503701f6fdde7fbc056affdf7eef4626fdbe56cf57ff4feb4381f52
AgentTesla
8bd3e79c27a89a3876bf4ad72bd24ae1be20265b37bb99a37ee964bf7bacaa66
AgentTesla
a35495ca447272d3acd4164b73c1f6e881bd0dc854f7953b4047dc79d273c268
AgentTesla
d9514b79def65a05aa2637d0afff60fea9611f6464f24d372d7cce3bba0ef240
AgentTesla
+ 5'937 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/210618-t14l7wlffx/
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:
85e6ff203c3e9a02fd40b7dd399006bf0afe7fec73a1fc04e13bd784080f9474
MD5 hash:
f7bf3a7689789badce4fa4918beb678e
SHA1 hash:
99a1f87611ede81153422e436e13cab8a72bae13
Link:
https://www.unpac.me/results/581861a6-69f0-4b6a-afdf-8933b88c3523/
SH256 hash:
b04bb6ce72fdd67eefd914537a17ba6fa9e14ecd20463dc9fd0a4d1159831c7f
MD5 hash:
c6a5f01961c617d48984692d3a9d06b2
SHA1 hash:
8c32c28017440cec263f6dda36bbf440a13608f6
Link:
https://www.unpac.me/results/581861a6-69f0-4b6a-afdf-8933b88c3523/
SH256 hash:
5bede9eedf6ae6df5a9d587c116c9583b31474c159c2b53486b000093cb3fde6
MD5 hash:
072eeac61b35d3f09edee4ff4f80f52d
SHA1 hash:
696fd9905a47e526470c2e234fef32f1ec1b74ad
Link:
https://www.unpac.me/results/581861a6-69f0-4b6a-afdf-8933b88c3523/
SH256 hash:
a6b91c8938497e679518d6376a474f275ad7715b861fbcdc7b8429a87eeb7b62
MD5 hash:
77bb78b08f9c95c31872ec4d11c778c4
SHA1 hash:
ed7d2ec51c51e8d757583ade36fe61b4536fd970
Link:
https://www.unpac.me/results/581861a6-69f0-4b6a-afdf-8933b88c3523/
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/a6b91c8938497e679518d6376a474f275ad7715b861fbcdc7b8429a87eeb7b62

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:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
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

zip e760efcf956cf894cad3ef31de4120a29c486343fdafaad816dfae9863b2e4f4

AgentTesla

Executable exe a6b91c8938497e679518d6376a474f275ad7715b861fbcdc7b8429a87eeb7b62

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 e760efcf956cf894cad3ef31de4120a29c486343fdafaad816dfae9863b2e4f4
Cape
Cape
https://www.capesandbox.com/analysis/166866/

Comments