MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5dacb79bb5f1021b128deef833d1c45bea09c6c27a4a0da9f090509f256ec52. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c5dacb79bb5f1021b128deef833d1c45bea09c6c27a4a0da9f090509f256ec52
SHA3-384 hash: 1e4e0512ff9190879cee4395712b6f4bcae478d5b2a250ce0893c8ca23a59cd16b78b724133a347e1c278d57285f5387
SHA1 hash: a21739dd4926377547c1b25e1829e64197e16d9c
MD5 hash: 92c11b7a171482052107c19b1b693ef3
humanhash: leopard-freddie-blossom-magnesium
File name:Doc51200013784.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:25'600 bytes
First seen:2022-03-28 12:37:14 UTC
Last seen:2022-03-31 09:41:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 192:w3bcJsyiF+MwzepbyjYlPalcU6+x92Jp:abcJX9JepbyYlPal4Z
Threatray 15'932 similar samples on MalwareBazaar
TLSH T13EB24011A794C265D9EACA3D5CF271FC0277BE03CC36A66BD4C5FF0E39312404652AA9
File icon (PE):PE icon
dhash icon 27d0d8d4d4d8d027 (24 x AgentTesla, 8 x SnakeKeylogger, 7 x Formbook)
Reporter TeamDreier
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
220
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/258617/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.11753.21759.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Sending an HTTP GET request
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling the 'hidden' option for recently created files
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6241ac321f20423948421e68/reports/5e52252c-0f6d-4145-844a-d6c665f17eb4/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/5d056c58-5b66-4407-bf16-b9bfbc6df1e9
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/965849
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
Creates multiple autostart registry keys
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
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)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 598326 Sample: Doc51200013784.exe Startdate: 28/03/2022 Architecture: WINDOWS Score: 100 58 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 Antivirus detection for URL or domain 2->62 64 5 other signatures 2->64 7 Doc51200013784.exe 16 7 2->7         started        12 img.exe 14 3 2->12         started        14 img.exe 3 2->14         started        16 2 other processes 2->16 process3 dnsIp4 56 18.179.111.240, 49772, 49793, 49794 AMAZON-02US United States 7->56 54 C:\Users\user\AppData\Roaming\docu\img.exe, PE32 7->54 dropped 74 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->74 76 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->76 78 Creates multiple autostart registry keys 7->78 80 Injects a PE file into a foreign processes 7->80 18 Doc51200013784.exe 2 5 7->18         started        22 cmd.exe 1 7->22         started        24 cmd.exe 1 7->24         started        26 cmd.exe 1 12->26         started        28 cmd.exe 14->28         started        30 cmd.exe 16->30         started        file5 signatures6 process7 file8 50 C:\Users\user\AppData\Roaming\...\cTlNs.exe, PE32 18->50 dropped 52 C:\Users\user\...\cTlNs.exe:Zone.Identifier, ASCII 18->52 dropped 66 Creates multiple autostart registry keys 18->66 68 Tries to harvest and steal ftp login credentials 18->68 70 Tries to harvest and steal browser information (history, passwords, etc) 18->70 72 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->72 32 conhost.exe 22->32         started        34 timeout.exe 1 22->34         started        36 conhost.exe 24->36         started        38 timeout.exe 1 24->38         started        40 conhost.exe 26->40         started        42 timeout.exe 1 26->42         started        44 conhost.exe 28->44         started        46 timeout.exe 28->46         started        48 2 other processes 30->48 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c5dacb79bb5f1021b128deef833d1c45bea09c6c27a4a0da9f090509f256ec52/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-03-28 13:17:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yxnmw6n3l4icdmji33xygpi4iw7kbhdme6skbwu7becqt4sw5rja._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
21a1fe67e4c65a5e6abcc621c2db92a3acb969fe922f8be1d2245c23d78b141d
AgentTesla
3266cc6c2a2fc1f64000b1ca849da565470cf2bf119fbe377e7ad5234756dba5
AgentTesla
43cb3ca80aa1ca82132bfede80febbf74cb511ae3a683a4f0e26ff8a11b87367
AgentTesla
95590a08cdd484993f89508e263542bef911267e95d4b1c70dd310effb64eb8e
AgentTesla
abd985aa1bfe39c848147583e821f9a2b0c806db69900e96850a7a9d70dbb75d
AgentTesla
b4929f7fb874ed756d9a535f255eb29057f5f8bc80ca34471cc3681a20282ec9
AgentTesla
c39a8dafb70b4adfb21ca557c23f3b81fc965c204bb70d515f8903f3205b72b7
AgentTesla
d1c616976e917d54778f587a2550ee5568a72b661d5f04e68d194ce998864d84
AgentTesla
f6e4842040712cdd0f767cd5a2a5be80c0928872f2399a671f66ad544b37fa5d
AgentTesla
+ 15'922 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/220328-pt2k7seafk/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
c5dacb79bb5f1021b128deef833d1c45bea09c6c27a4a0da9f090509f256ec52
MD5 hash:
92c11b7a171482052107c19b1b693ef3
SHA1 hash:
a21739dd4926377547c1b25e1829e64197e16d9c
Link:
https://www.unpac.me/results/104c4789-14fa-4743-8d3b-e1503f72a2e1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/c5dacb79bb5f1021b128deef833d1c45bea09c6c27a4a0da9f090509f256ec52

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 c5dacb79bb5f1021b128deef833d1c45bea09c6c27a4a0da9f090509f256ec52

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/258617/

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