MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 25128aab1edb1b7db3940787f0ae45722ea36b0a3e2423a155ea5618fab2af85. 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
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SHA256 hash: 25128aab1edb1b7db3940787f0ae45722ea36b0a3e2423a155ea5618fab2af85
SHA3-384 hash: 720499c7cbee5b75a0fa1c45855f278d62b0b8fc9d1fa408ec50c1a647fee9c3fe5ad3a2c9f062e43e60ad9fc1690cfa
SHA1 hash: 3e0d4305545d69aa47e741061adaf2a044d01d0d
MD5 hash: fd8649f8d7287ef36bdcec7f9b2f98c9
humanhash: quebec-solar-lactose-moon
File name:MT103-746394.doc
Download: download sample
Signature Formbook
Create hunting rule
File size:476'449 bytes
First seen:2024-06-24 15:47:12 UTC
Last seen:Never
File type:Word file doc
MIME type:text/rtf
ssdeep 6144:4wAYwAYwAYwAYwAYwAYwAYwAYwAYwAqFm4NvfB/0:T
TLSH T117A4792DD34B02598F620377AB571E5142BDBA6EF38552B1302C537933EAC3DA1252BE
Reporter abuse_ch
Tags:CVE-2017-11882 doc FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
389
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
25128aab1edb1b7db3940787f0ae45722ea36b0a3e2423a155ea5618fab2af85.doc
Verdict:
No threats detected
Analysis date:
2024-06-24 15:55:12 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/28012239-5346-4951-af5b-40eabf293135

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.29015.RtfHeur.Msg.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RoomService.20230808.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66799533ff0cdfb06de5f3a9win7simulatehigh_evasion
Tags:
Office Static Stealth Obfuscated
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Using the Windows Management Instrumentation requests
Creating a window
Connection attempt to an infection source by exploiting the app vulnerability
Creating a file in the %AppData% directory
Сreating synchronization primitives
Launching a service
Launching cmd.exe command interpreter
Query of malicious DNS domain
Launching a file downloaded from the Internet
Sending a TCP request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Unauthorized injection to a system process
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/25128aab1edb1b7db3940787f0ae45722ea36b0a3e2423a155ea5618fab2af85/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6679953b0bf5978c0b11f10d/reports/9985c03e-2ab3-466b-825b-621b1a53daf7/overview
Verdict:
Malicious
Labled as:
CVE-2018-0798
Link:
https://www.hybrid-analysis.com/sample/25128aab1edb1b7db3940787f0ae45722ea36b0a3e2423a155ea5618fab2af85
Label:
Malicious
Suspicious Score:
10/10
Score Malicious:
1%
Score Benign:
0%
Link:
https://www.malware.ai/gui/files/?id=07fbc904-24df-474a-8142-b4b237f2d286
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/1461823
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Document exploit detected (process start blacklist hit)
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
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
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Suspicious Binary In User Directory Spawned From Office Application
Sigma detected: Suspicious Microsoft Office Child Process
Snort IDS alert for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1461823 Sample: MT103-746394.doc Startdate: 24/06/2024 Architecture: WINDOWS Score: 100 40 www.winday.xyz 2->40 42 www.ixdye610r.xyz 2->42 44 6 other IPs or domains 2->44 58 Snort IDS alert for network traffic 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 66 13 other signatures 2->66 12 WINWORD.EXE 290 18 2->12         started        signatures3 64 Performs DNS queries to domains with low reputation 42->64 process4 process5 14 EQNEDT32.EXE 11 12->14         started        19 EQNEDT32.EXE 12->19         started        dnsIp6 52 universalmovies.top 104.21.74.191, 443, 49162 CLOUDFLARENETUS United States 14->52 36 C:\Users\user\AppData\...\obious53209.exe, PE32 14->36 dropped 38 C:\Users\user\AppData\Local\...\obizx[1].exe, PE32 14->38 dropped 54 Office equation editor establishes network connection 14->54 56 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 14->56 21 obious53209.exe 1 7 14->21         started        file7 signatures8 process9 signatures10 68 Machine Learning detection for dropped file 21->68 70 Tries to detect virtualization through RDTSC time measurements 21->70 72 Injects a PE file into a foreign processes 21->72 74 Switches to a custom stack to bypass stack traces 21->74 24 obious53209.exe 21->24         started        process11 signatures12 76 Modifies the context of a thread in another process (thread injection) 24->76 78 Maps a DLL or memory area into another process 24->78 80 Sample uses process hollowing technique 24->80 82 2 other signatures 24->82 27 explorer.exe 1 3 24->27 injected process13 dnsIp14 46 www.rajabet123-akunvip.xyz 27->46 48 www.umc.autos 27->48 50 7 other IPs or domains 27->50 84 System process connects to network (likely due to code injection or exploit) 27->84 86 Performs DNS queries to domains with low reputation 27->86 31 systray.exe 27->31         started        signatures15 process16 signatures17 88 Modifies the context of a thread in another process (thread injection) 31->88 90 Maps a DLL or memory area into another process 31->90 92 Tries to detect virtualization through RDTSC time measurements 31->92 94 Found direct / indirect Syscall (likely to bypass EDR) 31->94 34 cmd.exe 31->34         started        process18
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/25128aab1edb1b7db3940787f0ae45722ea36b0a3e2423a155ea5618fab2af85
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/25128aab1edb1b7db3940787f0ae45722ea36b0a3e2423a155ea5618fab2af85/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-06-24 14:52:12 UTC
File Type:
Document
Extracted files:
4
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eujivky63mnx3m4ua6d7blsfoixkg2ykhyschikv5jlbr6vsv6cq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:bi09 rat spyware stealer trojan
Link:
https://tria.ge/reports/240624-s8r7vszeqe/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Gathers network information
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
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
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Formbook payload
Formbook
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/25128aab1edb1b7db3940787f0ae45722ea36b0a3e2423a155ea5618fab2af85

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_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.
Rule name:SUSP_INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embedding one of the object mostly observed in exploit (e.g. CVE-2017-11882) documents.
Reference:https://github.com/ditekshen/detection

File information

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

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