MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 893f4dc8f8a1dcee05a0840988cf90bc93c1cda5b414f35a6adb5e9f40678ce9. 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


Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 893f4dc8f8a1dcee05a0840988cf90bc93c1cda5b414f35a6adb5e9f40678ce9
SHA3-384 hash: 553b9f5cdccb4d3ed1ace8ce2ec13e239a505ff21d0e7ed0f2b24c6cc0a12bfd6ced7a2151e2f93628067db91af2b5e7
SHA1 hash: e3ce65408af1c58e6b2a06e64e61e9a22e5969dc
MD5 hash: 611687468e61d078451da95ce208d786
humanhash: hamper-fifteen-diet-delta
File name:893f4dc8f8a1dcee05a0840988cf90bc93c1cda5b414f35a6adb5e9f40678ce9
Download: download sample
Signature Formbook
Create hunting rule
File size:244'736 bytes
First seen:2024-02-05 08:32:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 3072:fZG3f3/nf+Kh4xVbjUhcEHRhxoDKl+z5z44agRfBW:hG3f3/nWKh4xovxh2e+i4t
Threatray 5'386 similar samples on MalwareBazaar
TLSH T134340F037E88EB15E5A93E3782EF2C2413B2B0C71633C60B6F49AF6514516926D7E72D
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
274
Origin country :
HU HU
Vendor Threat Intelligence
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/474609/
Detection(s):
Win.Packed.Msilperseus-9956591-0
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Win.Packed.Generic-10003641-0
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Win.Packed.Generic-10011753-0
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
90%
Tags:
anti-vm evasive fingerprint hacktool hook keylogger lolbin remote stealer
Link:
https://www.filescan.io/uploads/65c09d510b80a407289261de/reports/b15595cb-da71-4199-bdcd-bb16a00a0d4b/overview
Verdict:
Malicious
Labled as:
MSIL.Krypt.Generic
Link:
https://www.hybrid-analysis.com/sample/893f4dc8f8a1dcee05a0840988cf90bc93c1cda5b414f35a6adb5e9f40678ce9
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.
Gathering data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1386617
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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 Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1386617 Sample: 51EKcKUO6O.exe Startdate: 05/02/2024 Architecture: WINDOWS Score: 100 19 mail.guestequipment.com.au 2->19 21 ip-api.com 2->21 23 guestequipment.com.au 2->23 29 Found malware configuration 2->29 31 Malicious sample detected (through community Yara rule) 2->31 33 Antivirus / Scanner detection for submitted sample 2->33 35 7 other signatures 2->35 6 51EKcKUO6O.exe 16 5 2->6         started        11 newfile.exe 14 2 2->11         started        13 newfile.exe 2 2->13         started        signatures3 process4 dnsIp5 25 ip-api.com 208.95.112.1, 49704, 49706, 49710 TUT-ASUS United States 6->25 27 guestequipment.com.au 27.54.88.193, 26, 49705, 49707 DREAMSCAPE-AS-APDreamscapeNetworksLimitedAU Australia 6->27 15 C:\Users\user\AppData\Roaming\...\newfile.exe, PE32 6->15 dropped 17 C:\Users\user\...\newfile.exe:Zone.Identifier, ASCII 6->17 dropped 37 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 6->37 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->39 41 Tries to steal Mail credentials (via file / registry access) 6->41 51 2 other signatures 6->51 43 Antivirus detection for dropped file 11->43 45 Multi AV Scanner detection for dropped file 11->45 47 Machine Learning detection for dropped file 11->47 49 Tries to harvest and steal browser information (history, passwords, etc) 13->49 file6 signatures7
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/893f4dc8f8a1dcee05a0840988cf90bc93c1cda5b414f35a6adb5e9f40678ce9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/893f4dc8f8a1dcee05a0840988cf90bc93c1cda5b414f35a6adb5e9f40678ce9/
Threat name:
ByteCode-MSIL.Trojan.Whispergate
Create hunting rule
Status:
Malicious
First seen:
2024-02-05 08:33:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 23 (91.30%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=re7u3shyuhoo4bnaqqeyrt4qxsj4dtnfwqkpgwtk3npj6qdhrtuq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
2690b17a5af1c059abd65a3d1a0d60938a68a2ed98e5831c7b71c03f3a31341f
Formbook
560599c1881e83810ac62f086df752008a76f1a955482404a233c3bef95ce2bb
Formbook
893f4dc8f8a1dcee05a0840988cf90bc93c1cda5b414f35a6adb5e9f40678ce9
Formbook
e62db78af11ac6a634634768e714627547a1f57fe6abbdb21c7afd5285e26cf4
Formbook
f2b532450ed44fa884c0ea547b17a6a11524c2abc5a0b8278143d0b26604bbf9
Formbook
ff467483f4ab3d57cba04c77901db4dd3c510f6d5d77548f521842f1eaba35e9
Formbook
+ 5'376 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/240205-kfwetabfe5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Adds Run key to start application
Looks up external IP address via web service
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:
893f4dc8f8a1dcee05a0840988cf90bc93c1cda5b414f35a6adb5e9f40678ce9
MD5 hash:
611687468e61d078451da95ce208d786
SHA1 hash:
e3ce65408af1c58e6b2a06e64e61e9a22e5969dc
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/7b959662-af35-482f-b020-d749a9940715/
Parent samples :
893f4dc8f8a1dcee05a0840988cf90bc93c1cda5b414f35a6adb5e9f40678ce9
3c31946c3a2b8f892b5d6ead9bc61399c2990c280a6d6905dc45e3b4ac0f3f99
19a9be9c599e9d453d07a0f5d72e891ec5b978d47c54ebfff855f9aa2b0994d4
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/893f4dc8f8a1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.77
Link:
https://yomi.yoroi.company/submissions/893f4dc8f8a1dcee05a0840988cf90bc93c1cda5b414f35a6adb5e9f40678ce9

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security

File information

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

Malspam

Formbook

Executable exe 893f4dc8f8a1dcee05a0840988cf90bc93c1cda5b414f35a6adb5e9f40678ce9

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/474609/

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