MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 887b8c631973cc6f3007d8ac0e45d1a198999d131877dfcf2736fde9c2499401. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 887b8c631973cc6f3007d8ac0e45d1a198999d131877dfcf2736fde9c2499401
SHA3-384 hash: 82d19dadfa3e7e0cb09fd7f6b41993c415fd94e9f05b32c3a69acc1b7336c1ab08f917fd8177a0bf2a41274a8ef7a5b6
SHA1 hash: f0504c605d3f34de69fce002861895e740748e3a
MD5 hash: 9816d40b30b9873d12e4d5c9895cd4cc
humanhash: stream-leopard-virginia-bulldog
File name:DOCUMENTS pdf..exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:847'360 bytes
First seen:2020-07-29 05:44:51 UTC
Last seen:2020-07-29 13:18:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:pJ6e/XuU+eZd6o8FE5d4NQazREkcMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM+MX:pInU+eZd38FE/CQqEkcMMMMMMMMMMMM6
Threatray 10'537 similar samples on MalwareBazaar
TLSH 3405AE51E7C0F4A2CDF94872664DD930CBA9BCD9D12B975435F87EAB39FA2B201011E2
Reporter jarumlus
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
6
# of downloads :
69
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/34168/
Detection(s):
SecuriteInfo.com.Generic.mg.9816d40b30b9873d.4874.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a window
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Forced shutdown of a system process
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/401252
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
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: Scheduled temp file as task from temp location
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 access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 252858 Sample: DOCUMENTS pdf..exe Startdate: 29/07/2020 Architecture: WINDOWS Score: 100 45 g.msn.com 2->45 47 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->47 55 Found malware configuration 2->55 57 Multi AV Scanner detection for dropped file 2->57 59 Sigma detected: Scheduled temp file as task from temp location 2->59 61 7 other signatures 2->61 9 DOCUMENTS pdf..exe 5 2->9         started        12 oPLNOE.exe 2 2->12         started        14 oPLNOE.exe 1 2->14         started        16 wuapihost.exe 2->16         started        signatures3 process4 file5 39 C:\Users\user\AppData\...\&startupname&.exe, PE32 9->39 dropped 41 C:\Users\user\AppData\Local\...\tmp8F2F.tmp, XML 9->41 dropped 43 C:\Users\user\...\DOCUMENTS pdf..exe.log, ASCII 9->43 dropped 18 RegSvcs.exe 2 4 9->18         started        23 schtasks.exe 1 9->23         started        25 conhost.exe 12->25         started        27 conhost.exe 14->27         started        process6 dnsIp7 49 daafco.com 50.87.202.136, 49728, 587 UNIFIEDLAYER-AS-1US United States 18->49 51 mail.daafco.com 18->51 53 192.168.2.1 unknown unknown 18->53 35 C:\Users\user\AppData\Roaming\...\oPLNOE.exe, PE32 18->35 dropped 37 C:\Windows\System32\drivers\etc\hosts, ASCII 18->37 dropped 63 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->63 65 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->65 67 Tries to steal Mail credentials (via file access) 18->67 69 5 other signatures 18->69 29 reg.exe 1 18->29         started        31 conhost.exe 23->31         started        file8 signatures9 process10 process11 33 conhost.exe 29->33         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/887b8c631973cc6f3007d8ac0e45d1a198999d131877dfcf2736fde9c2499401/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-29 05:46:07 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rb5yyyyzopgg6mah3cwa4rorugmjthitdb357tzhg366tqsjsqaq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
139c390b2e3355e7162b92d4d8109871c8f023b888ccbe1d43ba8dc50c0b6d39
AgentTesla
1dc4cd5cf6cb54871f9deba8d8c39cf6856a149d4c099585c5555a810e1e96dd
AgentTesla
2e0e3218280e31876a4a2c9ea5fd0227aacd4d4e1a5aaa4969102637b70a9d00
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55c46eca6b7b3d44afd9f09eab01429f08447da65ac74995dbc0a15793824614
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70b1ba0ece1eaa61f8946de73d8528caff86b5255ba2fe05e15f5b507db5c8fc
AgentTesla
7378a7b4d53f27fa8822570f11ad5a956cbc86528a0f916c9fb02999c159b610
AgentTesla
7f0fb6cbeb67d61d2fcf55c3e9496eee625be53db7e4e0a6321403efd9f8f7c8
AgentTesla
92458ba101e201f855a4bf2d71281cd304171520d73c90947cc45921da3e7987
AgentTesla
cd562019bc14f07f036f8d996ad37f741a091806001874603a2c8cd798d1843a
AgentTesla
d1b05a16a7f955432a7866f46ac2e32ed6ba21431e190d15fa46121f8ed2d46e
AgentTesla
+ 10'527 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
persistence spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200729-4t2x2tgxqe/
Behaviour
Suspicious use of WriteProcessMemory
Modifies registry key
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Drops file in Drivers directory
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/887b8c631973cc6f3007d8ac0e45d1a198999d131877dfcf2736fde9c2499401

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
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:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

AgentTesla

7z 8df60e833397cdb9a0c45f88446c486699f6ef6bc8271d165dc5c0aab0c40b9a

AgentTesla

Executable exe 887b8c631973cc6f3007d8ac0e45d1a198999d131877dfcf2736fde9c2499401

(this sample)

  
Dropped by
MD5 b8ad45c8f1b68f4bfd7ed95371ac8f24
  
Dropped by
SHA256 8df60e833397cdb9a0c45f88446c486699f6ef6bc8271d165dc5c0aab0c40b9a
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/34168/

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