MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b98dbe3fbbc3aebd02d205d45b61c61d71b83bc8cec5435bb6e5c9b880872f73. 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: 15


Intelligence 15 IOCs YARA 5 File information Comments

SHA256 hash: b98dbe3fbbc3aebd02d205d45b61c61d71b83bc8cec5435bb6e5c9b880872f73
SHA3-384 hash: 00534ae445601bdc956e27290eede2e0cbaf90fbb2d6579e48acd78d74a25abf37941f4d30cd7ba9e1da9864d82f95b3
SHA1 hash: 8de40e6388cbb79f0051470ecae53cfda2426c29
MD5 hash: 3100161c4136f9010f71a136e3e3b08e
humanhash: thirteen-timing-cold-lima
File name:HSBC PAYMENT RECEIPT.exe
Download: download sample
Signature Formbook
File size:712'704 bytes
First seen:2024-03-04 13:41:05 UTC
Last seen:2024-03-04 15:23:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'749 x AgentTesla, 19'653 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 12288:V3tWiZkJdWZ+TWxUaAu/4JuBVHkml1kkUfqGxSFUmpBEaP3igwjQqZHNhE7+:VUJUrdRQzkAxcbizjfm
TLSH T10AE4122133F8A587D17E0CF49A71515403767BA62D71E6DC4E8268CB08FA386AF53B87
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon f0f0d4ccccd4f0f0 (3 x AgentTesla, 3 x Formbook)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
303
Origin country :
HU HU
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
89%
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
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1402679 Sample: HSBC PAYMENT RECEIPT.exe Startdate: 04/03/2024 Architecture: WINDOWS Score: 100 32 www.tambang.pro 2->32 34 www.stylistandcojewelry.com 2->34 36 9 other IPs or domains 2->36 44 Snort IDS alert for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 15 other signatures 2->50 11 HSBC PAYMENT RECEIPT.exe 4 2->11         started        signatures3 process4 signatures5 60 Adds a directory exclusion to Windows Defender 11->60 62 Injects a PE file into a foreign processes 11->62 14 HSBC PAYMENT RECEIPT.exe 11->14         started        17 powershell.exe 22 11->17         started        process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 19 explorer.exe 55 1 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 38 www.pineislandhouseforsale.com 142.4.204.181, 49718, 80 OVHFR Canada 19->38 40 www.oo9cs.site 156.234.201.169, 49720, 80 MOACKCOLTD-AS-APMOACKCoLTDKR Seychelles 19->40 42 4 other IPs or domains 19->42 52 System process connects to network (likely due to code injection or exploit) 19->52 25 cmmon32.exe 19->25         started        signatures10 process11 signatures12 54 Modifies the context of a thread in another process (thread injection) 25->54 56 Maps a DLL or memory area into another process 25->56 58 Tries to detect virtualization through RDTSC time measurements 25->58 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2024-02-29 03:47:33 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:ki21 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
72638f4b30cc9dab51d31216991957bf1cd118b8a8743227b3e8f9c4805f7628
MD5 hash:
2a8240bba06e832ee5d136a0a7e5b5b9
SHA1 hash:
de49d9b33004a4a622a4279b3ee2b3e3e5cd012b
SH256 hash:
f4cb26eafe239b6c6ed1b949cb6435e2b80ec4ba357c21e4545f44384bb058ac
MD5 hash:
d0eddf2d377bb1a821008e8a658cb6b6
SHA1 hash:
7bc8b09a1edf450a3c2ddce4e9b8005eadf2c4cb
SH256 hash:
a1641e650531f49b704a7097303941766fbbbc355e96d9a38d37ee59fcfbf803
MD5 hash:
503070be34bb3b7304901df0c718a291
SHA1 hash:
1bfcaebc578fc50415b9c56e254cf7a412bd12d8
SH256 hash:
b98dbe3fbbc3aebd02d205d45b61c61d71b83bc8cec5435bb6e5c9b880872f73
MD5 hash:
3100161c4136f9010f71a136e3e3b08e
SHA1 hash:
8de40e6388cbb79f0051470ecae53cfda2426c29
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 b98dbe3fbbc3aebd02d205d45b61c61d71b83bc8cec5435bb6e5c9b880872f73

(this sample)

  
Delivery method
Distributed via e-mail attachment

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

Comments