MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 808dc37ef54a4c95bb66f4773d8a84d9b6f548b00bae26ee514996a7f46d2a04. 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 5 File information Comments

SHA256 hash: 808dc37ef54a4c95bb66f4773d8a84d9b6f548b00bae26ee514996a7f46d2a04
SHA3-384 hash: ef310a6a1b3528265b57ee5e827a2b1ddafd7b8f1a58ac831597adfa5d2a1726105c8c11d0682ad458b5316d43056318
SHA1 hash: acbff15ea6b56cb04810e826bfb555b5c2b7efae
MD5 hash: e81d3a6286beea59a2fe264b2b4ee156
humanhash: summer-purple-summer-north
File name:808dc37ef54a4c95bb66f4773d8a84d9b6f548b00bae26ee514996a7f46d2a04
Download: download sample
Signature Formbook
File size:682'496 bytes
First seen:2023-12-11 13:22:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:1hkZ59iBJMCZyGzhurolUfjc+gcqjma5G9lvxx4ALiKOsFNKwV8RjnHG0VRp+yzl:1K/9i/XZ3zhurUX+dkma5G99xLLiKOK8
TLSH T1B9E4235133C8D356CD698FB886669144C77B7E1F2635E24C2C8642CC3B2BB42C9B6B67
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
226
Origin country :
HU HU
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a window
Сreating synchronization primitives
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
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.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, 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 steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-12-07 16:54:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
agenttesla_v4 agenttesla
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Looks up external IP address via web service
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
96c484e3460ba35be66e9a5ff9f3ca2a11692f36ba6d11cd6d75b0bbdc3b83b7
MD5 hash:
6c45f8a7142f6a1723f6580cae0455ae
SHA1 hash:
d5272dc1974bca0fa16bc710af69209ce113fb5f
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
SH256 hash:
6d8ba7fecd5d09a0f99e673031b4ddcae067eea61b31657179f1d7e63acf2333
MD5 hash:
9a1f9c0dbb03c9f53d4d1e89df5beb22
SHA1 hash:
71c55c7f922c93df39c31f4423b625471f296ed9
Detections:
win_agent_tesla_g2 INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Agenttesla_type2 MALWARE_Win_AgentTeslaV2 INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL INDICATOR_EXE_Packed_GEN01 INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
SH256 hash:
4aed23d83c843b1266ee781471e6b859cce98372c1f53c2b45f4bee8fcce4b76
MD5 hash:
dac6d804e3c52ac20ba473b5c6889653
SHA1 hash:
14403458cfb96de48d3f36620bbb88c5254d5c40
SH256 hash:
808dc37ef54a4c95bb66f4773d8a84d9b6f548b00bae26ee514996a7f46d2a04
MD5 hash:
e81d3a6286beea59a2fe264b2b4ee156
SHA1 hash:
acbff15ea6b56cb04810e826bfb555b5c2b7efae
Please note that we are no longer able to provide a coverage score for Virus Total.

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_DIFF_Common_Strings_01
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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

Formbook

Executable exe 808dc37ef54a4c95bb66f4773d8a84d9b6f548b00bae26ee514996a7f46d2a04

(this sample)

  
Delivery method
Distributed via e-mail attachment

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