MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6154730b63778ae67589ab71efd7459b0e4463c419d2e649b0d2af0f67241e28. 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 3 File information Comments

SHA256 hash: 6154730b63778ae67589ab71efd7459b0e4463c419d2e649b0d2af0f67241e28
SHA3-384 hash: 2fd73ab6676c0fd59b4cd620cdf934c76387e598f66dd0982a20011564162c89e26bebe83aac12aab5ba4d317e552f51
SHA1 hash: 0e3a48ecf4c3ee7cff1b498e33e2255f2120c930
MD5 hash: ecc4e9486c0a6ba634901f26d01aa2b2
humanhash: double-saturn-michigan-quiet
File name:nPDF23232.exe
Download: download sample
Signature Formbook
File size:715'776 bytes
First seen:2024-02-22 14:04:04 UTC
Last seen:2024-02-22 15:26:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:Tyn0R0MunEx7AXXf6UfJ5saIdIZpUz0RuvsfN8N+w7SJ7B7KN:G0OMunE6XXf6U2ITJDyNWJ7BeN
TLSH T1EDE41200B7998B46E07DDBF2887094C017777A6AB962C70E1EC560CF6A737128F51EA7
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) (4504/4/1)
Reporter FXOLabs
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
389
Origin country :
FR FR
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
keylogger 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
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 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: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1396989 Sample: nPDF23232.exe Startdate: 22/02/2024 Architecture: WINDOWS Score: 100 34 www.aegnor.xyz 2->34 36 www.xn--674a.net 2->36 38 15 other IPs or domains 2->38 46 Snort IDS alert for network traffic 2->46 48 Multi AV Scanner detection for domain / URL 2->48 50 Found malware configuration 2->50 54 14 other signatures 2->54 11 nPDF23232.exe 4 2->11         started        signatures3 52 Performs DNS queries to domains with low reputation 34->52 process4 signatures5 58 Writes to foreign memory regions 11->58 60 Allocates memory in foreign processes 11->60 62 Adds a directory exclusion to Windows Defender 11->62 64 Injects a PE file into a foreign processes 11->64 14 RegSvcs.exe 11->14         started        17 powershell.exe 23 11->17         started        process6 signatures7 72 Modifies the context of a thread in another process (thread injection) 14->72 74 Maps a DLL or memory area into another process 14->74 76 Sample uses process hollowing technique 14->76 78 2 other signatures 14->78 19 explorer.exe 65 1 14->19 injected 23 WmiPrvSE.exe 17->23         started        25 conhost.exe 17->25         started        process8 dnsIp9 40 www.jspxstone.com 154.212.167.48, 49748, 80 COMING-ASABCDEGROUPCOMPANYLIMITEDHK Seychelles 19->40 42 jp.cname.erhe.cn 8.209.220.191, 49746, 80 CNNIC-ALIBABA-US-NET-APAlibabaUSTechnologyCoLtdC Singapore 19->42 44 6 other IPs or domains 19->44 56 System process connects to network (likely due to code injection or exploit) 19->56 27 wlanext.exe 19->27         started        signatures10 process11 signatures12 66 Modifies the context of a thread in another process (thread injection) 27->66 68 Maps a DLL or memory area into another process 27->68 70 Tries to detect virtualization through RDTSC time measurements 27->70 30 cmd.exe 1 27->30         started        process13 process14 32 conhost.exe 30->32         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2024-02-21 20:02:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:ge22 rat spyware stealer trojan
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
a49fee82ee6121ba0a112e3c0a34e09e9591974aec21ffabab3b6122602717ae
MD5 hash:
98f9a879ffd0e2e964891b79277ef9e8
SHA1 hash:
e914c333df2c9b84711138b1e67872157ad5d303
SH256 hash:
72638f4b30cc9dab51d31216991957bf1cd118b8a8743227b3e8f9c4805f7628
MD5 hash:
2a8240bba06e832ee5d136a0a7e5b5b9
SHA1 hash:
de49d9b33004a4a622a4279b3ee2b3e3e5cd012b
SH256 hash:
ec592062c41d26d7046ab135fbabaf80e69900ba940ca654261cda17109f8769
MD5 hash:
09f7fb78314d30bf7c69d72caa9da978
SHA1 hash:
5536e0f86fe6e36f11e5ba03a8f559675dd82f30
SH256 hash:
42e5bbee4b498550f505c1232326adbf9d5d23c7e90174eb142b4963b879fe7b
MD5 hash:
100a8095e042378d2c227eb0ff37b6d4
SHA1 hash:
32c4a6457d7c01e9e135c3750d571114bc0ef3a0
SH256 hash:
6154730b63778ae67589ab71efd7459b0e4463c419d2e649b0d2af0f67241e28
MD5 hash:
ecc4e9486c0a6ba634901f26d01aa2b2
SHA1 hash:
0e3a48ecf4c3ee7cff1b498e33e2255f2120c930
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:NET
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 6154730b63778ae67589ab71efd7459b0e4463c419d2e649b0d2af0f67241e28

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments