MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 be5b336a3ad03b3b70a286e38ba35c631f7d98f3c54e996c2e787f225b449879. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments

SHA256 hash: be5b336a3ad03b3b70a286e38ba35c631f7d98f3c54e996c2e787f225b449879
SHA3-384 hash: cd466952e990085ed61c589f8a19694e74c3f2ec33ad823f42050ee6901af7704652e969bf597df1a9379f66aac603be
SHA1 hash: 45330b3ae78f978305cd29a4c546ef561390e4e1
MD5 hash: 7b5078b51f6d1f9daec3e4113bdc4f17
humanhash: green-nuts-lemon-william
File name:sample catalog 2022.exe
Download: download sample
Signature Formbook
File size:388'640 bytes
First seen:2022-07-08 12:49:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'603 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:E1+IZdwDlYzAowyuQhHS4LMv+Bfu7FHl7hw3Lz+gWaPYPGoNw2QP:oJzwRSwypHS4fu7dlKPYPGoNw2QP
TLSH T187845B9BB65C738ECA17C97179B41D30A650AF77431A8602B4C7ED6C8A6C59FAF040F2
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 6ccccc9cc4d8e8f4 (41 x Formbook, 34 x AgentTesla, 3 x AveMariaRAT)
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
236
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Searching for synchronization primitives
Query of malicious DNS domain
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated overlay packed
Result
Verdict:
UNKNOWN
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 references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected potential unwanted application
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 659733 Sample: sample catalog 2022.exe Startdate: 08/07/2022 Architecture: WINDOWS Score: 100 32 Malicious sample detected (through community Yara rule) 2->32 34 Antivirus detection for URL or domain 2->34 36 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->36 38 7 other signatures 2->38 9 sample catalog 2022.exe 1 2->9         started        process3 file4 28 C:\Users\user\...\sample catalog 2022.exe.log, ASCII 9->28 dropped 46 Writes to foreign memory regions 9->46 48 Allocates memory in foreign processes 9->48 50 Injects a PE file into a foreign processes 9->50 13 cvtres.exe 9->13         started        16 cvtres.exe 9->16         started        18 cvtres.exe 9->18         started        signatures5 process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 13->52 54 Maps a DLL or memory area into another process 13->54 56 Sample uses process hollowing technique 13->56 58 Queues an APC in another process (thread injection) 13->58 20 explorer.exe 13->20 injected 60 Tries to detect virtualization through RDTSC time measurements 16->60 process8 process9 22 wscript.exe 20->22         started        signatures10 40 Modifies the context of a thread in another process (thread injection) 22->40 42 Maps a DLL or memory area into another process 22->42 44 Tries to detect virtualization through RDTSC time measurements 22->44 25 explorer.exe 2 155 22->25         started        process11 dnsIp12 30 192.168.2.1 unknown unknown 25->30
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2022-07-08 08:26:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
17 of 26 (65.38%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:vweq loader rat spyware stealer suricata
Behaviour
Modifies Internet Explorer settings
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
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Xloader payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
6ee752a945aedc4b5dc1dbb476a34529f9c7806e8b5eaa7942d26dd59b135d53
MD5 hash:
47c01d16e0a76c02d7a4afb953b05dd2
SHA1 hash:
1b9f50f1ad3714150b206742208f5981a24a61c8
SH256 hash:
be5b336a3ad03b3b70a286e38ba35c631f7d98f3c54e996c2e787f225b449879
MD5 hash:
7b5078b51f6d1f9daec3e4113bdc4f17
SHA1 hash:
45330b3ae78f978305cd29a4c546ef561390e4e1
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:INDICATOR_EXE_Packed_ConfuserEx
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:meth_get_eip
Author:Willi Ballenthin
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 be5b336a3ad03b3b70a286e38ba35c631f7d98f3c54e996c2e787f225b449879

(this sample)

  
Delivery method
Distributed via e-mail attachment

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