MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e4a2831ae3ee0aae7fa80df415ccb3774ef85aa9ca7f9f41e18bd603cd72c7bc. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e4a2831ae3ee0aae7fa80df415ccb3774ef85aa9ca7f9f41e18bd603cd72c7bc
SHA3-384 hash: e41702d30f5f94f112b1620265190b93fb89731242e93fcf512a57d5a0431433dd9fd9c6b1b632a78873de5d7097f82d
SHA1 hash: aabd8d9b7305b26018c384567024f581cbe96800
MD5 hash: cfe3e3f41da86497624f39e7cff46e5f
humanhash: lamp-diet-cup-lithium
File name:Remittance copy.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:664'064 bytes
First seen:2020-08-12 13:22:07 UTC
Last seen:2020-08-12 13:45:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:NLuVlbV03+h03+YLwegxLfA3p+vLwsxMp8K75mBeS+r5XTecf:NuTbV03+h03+YLLgxjokDws/6vSMXTpf
Threatray 5'348 similar samples on MalwareBazaar
TLSH 6AE4C06473A5A823D17B7E35C9B7551403BABC933939C71E1ACE33CF98213AD4910BA6
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
81
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/44139/
Detection(s):
SecuriteInfo.com.RSharedStrings.29001.839.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a file
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/422626
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Binary contains a suspicious time stamp
Injects a PE file into a foreign processes
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e4a2831ae3ee0aae7fa80df415ccb3774ef85aa9ca7f9f41e18bd603cd72c7bc/
Threat name:
ByteCode-MSIL.Trojan.Swotter
Create hunting rule
Status:
Malicious
First seen:
2020-08-12 12:20:31 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4sriggxd5yfk475ibx2bltfto5hpqwvjzj7z6qpbrplahtlsy66a._file
Verdict:
malicious
Similar samples:
172842029f8937753e79843e36fcb4715c0f3a9de4b256585847df48caf8e10f
Formbook
20e1306537cb762d25eccee8ebc9afe0a1356f02090346a1686a4472b55b127e
Formbook
474cad642b1cf88f8d7f922cbfd9b8a00d7fc0eb40cafc0877007ee2884f105f
Formbook
4a6187dd467be22cbd3eab6807d368c37535c488af22442498423da8124f35fa
Formbook
5620eaea502dcc3bc31e10dc48478022f518a15956a4b6565c454dd062859eff
Formbook
5f928f6a534f2420969e9072892d08011473d5993a183c515f2ff2620a33a56f
Formbook
60c5ac0b248ca937816d4ec153cfe39bd50f21668e32aa5cd059c1a1aae1315c
Formbook
86c28512dbc7ff79104d2c3bd9e81dcd493016f61316890206d3dcfeee47a244
Formbook
9b2c6f08cd9a4e3b144422de4d540290542ce50239f2c85697a036a461b25264
Formbook
b042e4bdfe19df2aa474fd5e2294aecc9a07d447c96466db7a7e20316d885634
Formbook
+ 5'338 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/200812-nx4skrxyvs/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.flekcht.com/usc/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.89
Link:
https://yomi.yoroi.company/submissions/e4a2831ae3ee0aae7fa80df415ccb3774ef85aa9ca7f9f41e18bd603cd72c7bc

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:RSharedStrings
Create hunting rule
Author:Katie Kleemola
Description:identifiers for remote and gmremote

File information

The table below shows additional information about this malware sample such as delivery method and external references.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/44139/

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