MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71cef6c774b7a7cfbc7519cef16125c27f08f4ece2760f02c1baeb2ce5fd96bb. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 71cef6c774b7a7cfbc7519cef16125c27f08f4ece2760f02c1baeb2ce5fd96bb
SHA3-384 hash: b8ca3c92388920461ae8187a00c4a4d128410fe7d237cc2be2c2e9bbd82608ecf78cf79f791759c387cd27580a69e996
SHA1 hash: b3433a36b915673d3f2f998d8eb1e510d6924a0f
MD5 hash: 90f903affe2f897e0cb9023940dcff0f
humanhash: charlie-jersey-winner-michigan
File name:Invoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:506'368 bytes
First seen:2022-04-16 02:17:44 UTC
Last seen:2022-04-18 12:41:47 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 12288:14u2JrxxgjjCscQxoHdASzTKrddjtoc9mwSup3s06u:14uefgjjLcQCAEkddtocUwJ3s0b
Threatray 16'025 similar samples on MalwareBazaar
TLSH T186B4CFA1D96124C6C0416A75C896CCB03AD6B39A421DF79CB8B1FA193EF51C2E015FBF
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
314
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Invoice.exe
Verdict:
Malicious activity
Analysis date:
2022-04-16 02:20:22 UTC
Tags:
agenttesla
Link:
https://app.any.run/tasks/25854d0d-880c-482f-8b73-5f4757e6a4ca

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/264041/
Detection(s):
SecuriteInfo.com.Suspicious.Win32.Save.a.30503.16124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Reading critical registry keys
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a system process
Changing the hosts file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit obfuscated packed
Link:
https://www.filescan.io/uploads/625a275a482f2f41cab92ae1/reports/040f7702-d331-43b3-b44b-767e160adb64/overview
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e79afe3c-95c8-4046-b511-c3c0c553637c
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/977577
Signature
.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)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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: Suspicious Add Scheduled Task From User AppData Temp
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)
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 / registry 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 signatures2 2 Behavior Graph ID: 610064 Sample: Invoice.exe Startdate: 16/04/2022 Architecture: WINDOWS Score: 100 50 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 11 other signatures 2->56 7 Invoice.exe 6 2->7         started        11 wZzDLLs.exe 2 2->11         started        13 wZzDLLs.exe 1 2->13         started        process3 file4 32 C:\Users\user\AppData\Roaming\oZvsVZLw.exe, PE32 7->32 dropped 34 C:\Users\user\AppData\Local\...\tmpAA15.tmp, XML 7->34 dropped 36 C:\Users\user\AppData\...\Invoice.exe.log, ASCII 7->36 dropped 58 Uses schtasks.exe or at.exe to add and modify task schedules 7->58 60 Writes to foreign memory regions 7->60 62 Injects a PE file into a foreign processes 7->62 15 RegSvcs.exe 2 4 7->15         started        20 schtasks.exe 1 7->20         started        22 conhost.exe 11->22         started        24 conhost.exe 13->24         started        signatures5 process6 dnsIp7 38 atifnazar.com 212.8.242.106, 49720, 587 WORLDSTREAMNL Netherlands 15->38 40 mail.atifnazar.com 15->40 28 C:\Users\user\AppData\Roaming\...\wZzDLLs.exe, PE32 15->28 dropped 30 C:\Windows\System32\drivers\etc\hosts, ASCII 15->30 dropped 42 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->42 44 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->44 46 Tries to steal Mail credentials (via file / registry access) 15->46 48 5 other signatures 15->48 26 conhost.exe 20->26         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/71cef6c774b7a7cfbc7519cef16125c27f08f4ece2760f02c1baeb2ce5fd96bb/
Threat name:
ByteCode-MSIL.Infostealer.DarkStealer
Create hunting rule
Status:
Malicious
First seen:
2022-04-16 01:17:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ohhpnr3uw6t47pdvdhhpcyjfyj7qr5hm4j3a6awbxlvszzp5s25q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0c8dd4f415d77ea097b6276a2a7d837192de73ab61e0d20ac1e7f5d04298c3e3
AgentTesla
1f159a90cc9a8c72b6f966bb9faf9c7efedcccb3550345b63c9ecbe844d64403
AgentTesla
997777103beb79d540fe2d758c2183107f3468889f9bc1d96bfd08db19dbb9c8
AgentTesla
be13445bfc27add23b008bd963fb87dbe131334ae4b627a97f34083fe355eae0
AgentTesla
c96dc3cda588a657072da54ca993bd2b714dc09575670808c25e03f2c64cfc32
AgentTesla
ec2435e5f30ac118fc59de569e9331715b89754a16c838054b625bb4983d3cb4
AgentTesla
+ 16'015 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/220416-cq92ysbah3/
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
Checks computer location settings
Drops file in Drivers directory
AgentTesla
Unpacked files
SH256 hash:
546f7d27df59e5b58c44b8faa67797022d2a690fa9f196fb71f810590a5c8f8c
MD5 hash:
5fceb3f8d91d2815d58ae050b560f82d
SHA1 hash:
fdbf52b497790ce14aca756c34c5dfbb31c49804
Link:
https://www.unpac.me/results/32ca9376-eaa5-4ece-be2d-93cdb300db24/
SH256 hash:
6f9f80780592cea1f132486a46ef7af6194a27890da2cd8ce5d377a7990c199c
MD5 hash:
84bb37394d68a274ee03cbc254dfc2e7
SHA1 hash:
8bd47f3801fc2da35b82f0c5df74e7ae8eee06bc
Link:
https://www.unpac.me/results/32ca9376-eaa5-4ece-be2d-93cdb300db24/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/32ca9376-eaa5-4ece-be2d-93cdb300db24/
SH256 hash:
71cef6c774b7a7cfbc7519cef16125c27f08f4ece2760f02c1baeb2ce5fd96bb
MD5 hash:
90f903affe2f897e0cb9023940dcff0f
SHA1 hash:
b3433a36b915673d3f2f998d8eb1e510d6924a0f
Link:
https://www.unpac.me/results/32ca9376-eaa5-4ece-be2d-93cdb300db24/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/71cef6c774b7/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/71cef6c774b7a7cfbc7519cef16125c27f08f4ece2760f02c1baeb2ce5fd96bb

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

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe 71cef6c774b7a7cfbc7519cef16125c27f08f4ece2760f02c1baeb2ce5fd96bb

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/264041/

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