MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2351c7c8a183c7f0f6d9514d206e3d9e3423193011c47e9fabe07b70c604027e. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
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SHA256 hash: 2351c7c8a183c7f0f6d9514d206e3d9e3423193011c47e9fabe07b70c604027e
SHA3-384 hash: 8ea06c71bad1a51b5b380e5447146eac3f6d67647ee7d781a9432c68f5d5cc7b48f8d4975928567e0a28b804b34ea63e
SHA1 hash: f619a46dc55f73160c868059d690ac4336d53b78
MD5 hash: 3d77429f066efd067a7cda6019ced188
humanhash: item-thirteen-artist-zebra
File name:Order_2GSM04G77.rtf
Download: download sample
Signature Formbook
Create hunting rule
File size:222'666 bytes
First seen:2022-04-14 11:17:59 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/plain
ssdeep 1536:i2VGRyIs3WFCLPII9to/347lThdqdzFz76mAg5eeVhMDw5wfLU:ioPQM8dzFtr5RDAw5wfQ
TLSH T1A324E9B4684F0872D308DC1E25A8B645AE79FEE374C1557223AFE434CF9AAF29EC4541
Reporter abuse_ch
Tags:FormBook rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
206
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Order_2GSM04G77.rtf
Verdict:
Malicious activity
Analysis date:
2022-04-14 20:02:04 UTC
Tags:
ole-embedded loader formbook
Link:
https://app.any.run/tasks/bc50a223-a1e5-4f4d-b8e1-d6f0a7f9c6a9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/rtf
Has a screenshot:
False
Contains macros:
False
Detection(s):
TwinWave.EvilDoc.DOCXSTRGOOD.RTFSTR.SCRIPTLET.200421.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RTFSquiblyDooForeverYou.20210701.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Changing the Zone.Identifier stream
Creating a window
DNS request
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a process from a recently created file
Sending an HTTP GET request
Launching a file downloaded from the Internet
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/2351c7c8a183c7f0f6d9514d206e3d9e3423193011c47e9fabe07b70c604027e/results/dashboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
CVE-2017-0199 CVE-2017-8570 CVE-2017-8759 CVE-2018-8174 evasive exploit exploit packed powershell replace.exe update.exe wscript
Link:
https://www.filescan.io/uploads/62580330eab80a7a6c125f45/reports/0220c46d-5b0d-4eb3-ae84-122ac0b0effb/overview
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/976774
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Document exploit detected (creates forbidden files)
Document exploit detected (drops PE files)
Document exploit detected (process start blacklist hit)
Found suspicious RTF objects
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Microsoft Office creates scripting files
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Office process drops PE file
Powershell drops PE file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Powershell download and execute file
Sigma detected: PowerShell DownloadFile
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to download and execute files (via powershell)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 609258 Sample: Order_2GSM04G77.rtf Startdate: 14/04/2022 Architecture: WINDOWS Score: 100 53 Malicious sample detected (through community Yara rule) 2->53 55 Antivirus detection for URL or domain 2->55 57 Sigma detected: Powershell download and execute file 2->57 59 16 other signatures 2->59 10 WINWORD.EXE 300 38 2->10         started        process3 dnsIp4 51 wellcalls.com 212.193.30.19, 49171, 49172, 80 SPD-NETTR Russian Federation 10->51 43 C:\Users\user\AppData\...\Railroad[1].exe, PE32 10->43 dropped 45 C:\Users\user\AppData\...\abdtfhgYgeghDp .scT, data 10->45 dropped 47 C:\Users\user\AppData\Local\...\10A4599C.png, 370 10->47 dropped 75 Document exploit detected (creates forbidden files) 10->75 77 Suspicious powershell command line found 10->77 79 Tries to download and execute files (via powershell) 10->79 81 Microsoft Office creates scripting files 10->81 15 powershell.exe 10->15         started        17 powershell.exe 12 7 10->17         started        22 verclsid.exe 10->22         started        24 2 other processes 10->24 file5 signatures6 process7 dnsIp8 26 Railroad.exe 1 5 15->26         started        49 wellcalls.com 17->49 41 C:\Users\user\AppData\Roaming\Railroad.exe, PE32 17->41 dropped 61 Powershell drops PE file 17->61 29 Railroad.exe 17->29         started        file9 signatures10 process11 signatures12 69 Machine Learning detection for dropped file 26->69 71 Tries to detect virtualization through RDTSC time measurements 26->71 73 Injects a PE file into a foreign processes 26->73 31 Railroad.exe 26->31         started        34 Railroad.exe 29->34         started        process13 signatures14 83 Modifies the context of a thread in another process (thread injection) 31->83 85 Maps a DLL or memory area into another process 31->85 87 Sample uses process hollowing technique 31->87 89 Queues an APC in another process (thread injection) 31->89 36 explorer.exe 31->36 injected process15 process16 38 cmd.exe 36->38         started        signatures17 63 Modifies the context of a thread in another process (thread injection) 38->63 65 Maps a DLL or memory area into another process 38->65 67 Tries to detect virtualization through RDTSC time measurements 38->67
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2351c7c8a183c7f0f6d9514d206e3d9e3423193011c47e9fabe07b70c604027e/
Threat name:
Script.Trojan.RTFObfustream
Create hunting rule
Status:
Malicious
First seen:
2022-04-14 09:42:38 UTC
File Type:
Document
Extracted files:
15
AV detection:
14 of 26 (53.85%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eni4psfbqpd7b5wzkfgsa3r5ty2cggjqchch5h5l4b5xbrqeaj7a._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:r2y0 rat spyware stealer trojan
Link:
https://tria.ge/reports/220414-nd9q7shgf9/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
NTFS ADS
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Formbook Payload
Formbook
Process spawned unexpected child process
Malware Config
Dropper Extraction:
http://wellcalls.com/Railroad.exe
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2351c7c8a183/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2351c7c8a183c7f0f6d9514d206e3d9e3423193011c47e9fabe07b70c604027e

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_RTF_Exploit_Scripting
Create hunting rule
Author:ditekSHen
Description:detects CVE-2017-8759 or CVE-2017-8570 weaponized RTF documents.
Rule name:INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.

File information

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

Comments