MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9b38c45acf649b5db02318330583b66e8f70f637a54ef40db50afbef85a0cbb6. 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: 16


Intelligence 16 IOCs YARA 6 File information Comments

SHA256 hash: 9b38c45acf649b5db02318330583b66e8f70f637a54ef40db50afbef85a0cbb6
SHA3-384 hash: b88b90d4a28c96141b0f6f559c29310b89727213edfa07f49edbc204b24a2eb26a45f674dfdb571e251f11e54cb839ba
SHA1 hash: b95ec335db31a00d2ec118afec3ff1a5885f93d4
MD5 hash: f41074eaa3e27940c9659ed547264c46
humanhash: friend-undress-connecticut-whiskey
File name:ErieCustomerInvoiceReceipt.exe
Download: download sample
Signature Formbook
File size:666'624 bytes
First seen:2024-07-19 08:59:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:2fBafvIKSe9qVlyQSRanh4cMVPzF62RIoDKbB38kjrhmlrFrncR:24f/R0VlyAh4DUoDKV38kjrUrF
Threatray 16 similar samples on MalwareBazaar
TLSH T1CDE4BF423289ACDAE4535EB248BFD52012787E5E9139C60D3643BB2B55F335220ABF5F
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 92b2aca6a6ba8e9e (6 x AgentTesla, 5 x PureCrypter, 4 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
375
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
70%
Tags:
Stealth Swotter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade 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:
FormBook, PureLog Stealer
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: CMSTP Execution Process Creation
Snort IDS alert for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to resolve many domain names, but no domain seems valid
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1476631 Sample: ErieCustomerInvoiceReceipt.exe Startdate: 19/07/2024 Architecture: WINDOWS Score: 100 35 www.kamerad.xyz 2->35 37 www.experimentguardian.xyz 2->37 39 24 other IPs or domains 2->39 47 Snort IDS alert for network traffic 2->47 49 Multi AV Scanner detection for domain / URL 2->49 51 Found malware configuration 2->51 55 15 other signatures 2->55 11 ErieCustomerInvoiceReceipt.exe 3 2->11         started        signatures3 53 Performs DNS queries to domains with low reputation 37->53 process4 file5 33 C:\...rieCustomerInvoiceReceipt.exe.log, ASCII 11->33 dropped 67 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->67 69 Tries to detect virtualization through RDTSC time measurements 11->69 71 Switches to a custom stack to bypass stack traces 11->71 15 ErieCustomerInvoiceReceipt.exe 11->15         started        18 ErieCustomerInvoiceReceipt.exe 11->18         started        20 ErieCustomerInvoiceReceipt.exe 11->20         started        signatures6 process7 signatures8 73 Modifies the context of a thread in another process (thread injection) 15->73 75 Maps a DLL or memory area into another process 15->75 77 Sample uses process hollowing technique 15->77 79 2 other signatures 15->79 22 explorer.exe 76 1 15->22 injected process9 dnsIp10 41 www.vtsr-health.com 104.200.25.225, 49741, 80 LINODE-APLinodeLLCUS United States 22->41 43 www.norskeplanteskoler.online 185.134.245.113, 49743, 49744, 80 DOMENESHOPOsloNorwayNO Norway 22->43 45 2 other IPs or domains 22->45 57 System process connects to network (likely due to code injection or exploit) 22->57 26 cmstp.exe 22->26         started        signatures11 process12 signatures13 59 Modifies the context of a thread in another process (thread injection) 26->59 61 Maps a DLL or memory area into another process 26->61 63 Tries to detect virtualization through RDTSC time measurements 26->63 65 Switches to a custom stack to bypass stack traces 26->65 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-06-13 16:24:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
45
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:uem3 loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks computer location settings
Blocklisted process makes network request
Xloader payload
Xloader
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
401bf15eb8fe1fd927d341b2d6309af3a6ec3c491c8895f396eb38fe475b41ec
MD5 hash:
a20b7d2ceeb140ef0bdec5839ed8315f
SHA1 hash:
530b58f649df600c7f9254e79cce73850c03ada2
Detections:
XLoader win_formbook_g0 win_formbook_auto win_formbook_w0 Formbook
SH256 hash:
83702bc937afeab35791dd193dcfee28bc5bbbd93243f4628e8de16fd7c30584
MD5 hash:
5fee73b6fdf6369e58f8ce6309010ba6
SHA1 hash:
a280ffc48d29ad9e60685c746616af20bc87b8a6
SH256 hash:
d48b2144587b602a0981bad0b10eb5eff2f73d990ab59adf22cee443ad148d82
MD5 hash:
a4dd3cc3f058a94b16f4c44bd86cad74
SHA1 hash:
44fe4c383883ea4310cfcb359f1dec85e0292b87
SH256 hash:
dec15271d422cf3b82c0a94cf147312bb5a4a4f262da4b698ffe7e6bdaf18053
MD5 hash:
79c5c39e29ebe233cd13a50987e64609
SHA1 hash:
0560314716e6519158009159c017d2b52116608e
SH256 hash:
9b38c45acf649b5db02318330583b66e8f70f637a54ef40db50afbef85a0cbb6
MD5 hash:
f41074eaa3e27940c9659ed547264c46
SHA1 hash:
b95ec335db31a00d2ec118afec3ff1a5885f93d4
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.

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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