MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 864e3cbfb352bd8662d6db3c994488c2852d471a5b9d2426552f1506fc67f68b. 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 2 File information Comments

SHA256 hash: 864e3cbfb352bd8662d6db3c994488c2852d471a5b9d2426552f1506fc67f68b
SHA3-384 hash: dd92bdf150e4071ce94aa8d676c96c56ea1ef3194ee7b657b2e97c89fb048e1f199721ce3663631273db24587d5bb45b
SHA1 hash: 816685495e57324d9a617453dc4cf42c0d2e6afc
MD5 hash: 3bb22de5c976e365a88992fe70b83b34
humanhash: monkey-shade-delaware-mobile
File name:uBNDpDq5KCpni8Q.exe
Download: download sample
Signature Formbook
File size:575'488 bytes
First seen:2022-07-18 18:55:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'207 x SnakeKeylogger)
ssdeep 12288:QSwx8SVSeN1OwnlrK10/kQs7+ySxzwPfYW2zW+EVAvw7M7f6WZ5fftIRZe7fnH+3:qx/VSK1lA0/kQlyqQw5W02oY
TLSH T154C4289C72A0B1EED8A7C576CFE86CB8FA60B477530B51139023199E9E0D987DF150B2
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
1
# of downloads :
314
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Searching for synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
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 very large strings
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 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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Tnega
Status:
Malicious
First seen:
2022-07-14 14:53:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:formbook family:xloader campaign:zzun loader persistence rat spyware stealer suricata trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Deletes itself
Reads user/profile data of web browsers
Blocklisted process makes network request
Xloader payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
ee9ec9235d458bb33e41db184aa746585f7527f05d4aaa83717128e88c7670bf
MD5 hash:
a4668905f7f49315c266e588c0d01b14
SHA1 hash:
f5495dd27a3fd03c33e7ac38f26d944d14217804
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
5e97ccd8dafcb36b3cb772f6a2fd425abcf221ab9ea1930e8c2618c95332f2c6
MD5 hash:
01800f6b045def8d90c649842f56d752
SHA1 hash:
f8434a4636d0772d01aac44bb3f9753a41f01d34
SH256 hash:
1cdf13ee766f49cd897932f383bea8f626eb2e79f53cd63db681b5dd72d3a40f
MD5 hash:
89670e6d1e9ec278718bddec87e4341e
SHA1 hash:
4bfb2b58582b8d261a4548d18a35eeabd51c7931
SH256 hash:
864e3cbfb352bd8662d6db3c994488c2852d471a5b9d2426552f1506fc67f68b
MD5 hash:
3bb22de5c976e365a88992fe70b83b34
SHA1 hash:
816685495e57324d9a617453dc4cf42c0d2e6afc
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.

Malspam

Formbook

Executable exe 864e3cbfb352bd8662d6db3c994488c2852d471a5b9d2426552f1506fc67f68b

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

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