MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 87479e825388ddd0fbabf2924179f22846cfd44cf2acc387d7ae826290bd9016. 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 2 File information Comments

SHA256 hash: 87479e825388ddd0fbabf2924179f22846cfd44cf2acc387d7ae826290bd9016
SHA3-384 hash: f5f18eb971ef1cc234cad19b3ffaa209df2b9a4a1aa2ac78f1f45669b65955d2add797798bd994c0ff42b616a9915a64
SHA1 hash: c7f8b83e3b94dcd0076da2ffc4bdf37792a82ce6
MD5 hash: 56427a29b4382fe31ec7fa39870e1498
humanhash: artist-spring-asparagus-delta
File name:New RFQ #YQpRrt6VJfWZqC4.exe
Download: download sample
Signature Formbook
File size:545'792 bytes
First seen:2023-01-12 08:47:57 UTC
Last seen:2023-01-12 10:36:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:93hiHPeMO0ITezoqQkyNRH/HI2Pm+8ubkw:9RiROpq3Y/Ha+bkw
TLSH T1DCC4DF8F59D1B420EFD41474C702B9CD0A732F419AF6E98F9D973D2F29604EC2AA458B
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter Anonymous
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
183
Origin country :
PL PL
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
New RFQ #YQpRrt6VJfWZqC4.exe
Verdict:
Malicious activity
Analysis date:
2023-01-12 08:50:43 UTC
Tags:
formbook xloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
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:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 782890 Sample: New RFQ #YQpRrt6VJfWZqC4.exe Startdate: 12/01/2023 Architecture: WINDOWS Score: 100 66 Malicious sample detected (through community Yara rule) 2->66 68 Antivirus detection for URL or domain 2->68 70 Sigma detected: Scheduled temp file as task from temp location 2->70 72 11 other signatures 2->72 10 New RFQ #YQpRrt6VJfWZqC4.exe 7 2->10         started        14 mZfnNtH.exe 5 2->14         started        process3 file4 46 C:\Users\user\AppData\Roaming\mZfnNtH.exe, PE32 10->46 dropped 48 C:\Users\user\...\mZfnNtH.exe:Zone.Identifier, ASCII 10->48 dropped 50 C:\Users\user\AppData\Local\...\tmp90E2.tmp, XML 10->50 dropped 52 C:\Users\...52ew RFQ #YQpRrt6VJfWZqC4.exe.log, ASCII 10->52 dropped 80 Adds a directory exclusion to Windows Defender 10->80 82 Injects a PE file into a foreign processes 10->82 16 New RFQ #YQpRrt6VJfWZqC4.exe 10->16         started        19 powershell.exe 21 10->19         started        21 schtasks.exe 1 10->21         started        84 Multi AV Scanner detection for dropped file 14->84 86 Machine Learning detection for dropped file 14->86 88 Tries to detect virtualization through RDTSC time measurements 14->88 23 mZfnNtH.exe 14->23         started        25 schtasks.exe 1 14->25         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 16->58 60 Maps a DLL or memory area into another process 16->60 62 Sample uses process hollowing technique 16->62 64 Queues an APC in another process (thread injection) 16->64 27 explorer.exe 1 16->27 injected 31 conhost.exe 19->31         started        33 conhost.exe 21->33         started        35 conhost.exe 25->35         started        process8 dnsIp9 54 www.leedsbusinessforum.co.uk 81.17.18.194, 49690, 80 PLI-ASCH Switzerland 27->54 56 www.vdsfs.africa 27->56 90 System process connects to network (likely due to code injection or exploit) 27->90 37 svchost.exe 27->37         started        40 WWAHost.exe 27->40         started        signatures10 process11 signatures12 74 Modifies the context of a thread in another process (thread injection) 37->74 76 Maps a DLL or memory area into another process 37->76 78 Tries to detect virtualization through RDTSC time measurements 37->78 42 cmd.exe 1 37->42         started        process13 process14 44 conhost.exe 42->44         started       
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-01-11 16:55:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
26 of 39 (66.67%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:as48 rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
d5718cfc5ded3ac791f539fab3a5559384b2a1694a0dc689f58e98e57bed18aa
MD5 hash:
207f7ee2a146b265261dbb94a29b06a9
SHA1 hash:
c2d0954cd772f6d6e6c020796fe90f3aee4c18bb
SH256 hash:
4da486f2f83ae3a44de46adea3763de40e801cd0e307b648de50e46ca06a6f8d
MD5 hash:
c91e20ec5615b886d065478f15042087
SHA1 hash:
b1476b037c89ab1c641df07698146be6f4b33f29
SH256 hash:
63e0e78a3054d1d8b78e200bff2dd8bd3a5573ce965be21e54f78ca24862ebb6
MD5 hash:
a71c6a1a52201a31a0a4d84fb496c8b1
SHA1 hash:
8ff6a50a888a56414fa76b850e219b9623ca2981
SH256 hash:
ff1b42ea7d56a37eae801adbddb7116f52a4664c0b41302736f522852edc2747
MD5 hash:
89ac57478044c57c7195943116a521e0
SHA1 hash:
1ff2bafeed795423e3538d810bda8e1e3fcdcfa5
SH256 hash:
87479e825388ddd0fbabf2924179f22846cfd44cf2acc387d7ae826290bd9016
MD5 hash:
56427a29b4382fe31ec7fa39870e1498
SHA1 hash:
c7f8b83e3b94dcd0076da2ffc4bdf37792a82ce6
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: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.

Comments