MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 06830db1aa3ac6ae7cf27c5b75a18607eda3406b4457c1bece07c1bda41e5e67. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 06830db1aa3ac6ae7cf27c5b75a18607eda3406b4457c1bece07c1bda41e5e67
SHA3-384 hash: 1058a1196bc48a12b64da8df50f857f389a97c4e70062d60b8d19211e725d477595d0d12b47af404049d15dd684b8d33
SHA1 hash: 4dafb03648b6b788b7a98f7efbf7ffb67099bbb0
MD5 hash: 134f5374180706f6a90aa16c3041f045
humanhash: september-yankee-arkansas-early
File name:SBLC_002_copy.doc
Download: download sample
Signature Formbook
Create hunting rule
File size:13'183 bytes
First seen:2022-04-14 07:13:35 UTC
Last seen:Never
File type:Word file doc
MIME type:application/octet-stream
ssdeep 384:uDm/pHXBoOt/LSKozGuufdzW8R1wJ9hj0UTyHyn:lNOa+VzDqd6mAP0UT7n
TLSH T1F6426B35D4B4CA98CF88B3AAA232FA3052CD7F41D3C2E1657D74F75117A23799D02920
Reporter cocaman
Tags:CVE-2017-11882 doc FormBook


Avatar
cocaman
Malicious email (T1566.001)
From: ""Neige Lang "<aKamel.haddad@tollgroup.com>" (likely spoofed)
Received: "from tollgroup.com (unknown [31.210.20.93]) "
Date: "13 Apr 2022 18:50:03 +0200"
Subject: "Shipment Document BL,INV and packing list"
Attachment: "SBLC_002_copy.doc"

Intelligence

File Origin
# of uploads :
1
# of downloads :
292
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Spam-473.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.27333.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FakeRTF-1.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.26244.RtfHeur.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.EvilRTF.CVE-2017-0199-Obfus.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file in the %AppData% directory
Сreating synchronization primitives
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
CVE-2018-0798 embedequation exploit javascript packed replace.exe shellcode wacatac
Link:
https://www.filescan.io/uploads/6257c9bc482f2f41caac6592/reports/48af15bd-709f-4cb0-b37d-862e908b0e72/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/976947
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
Antivirus detection for URL or domain
Initial sample is an obfuscated RTF file
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 609436 Sample: SBLC_002_copy.doc Startdate: 14/04/2022 Architecture: WINDOWS Score: 100 42 Initial sample is an obfuscated RTF file 2->42 44 Multi AV Scanner detection for domain / URL 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 14 other signatures 2->48 10 EQNEDT32.EXE 11 2->10         started        15 WINWORD.EXE 291 19 2->15         started        17 explorer.exe 15 2->17         started        process3 dnsIp4 40 2.58.149.41, 49173, 80 GBTCLOUDUS Netherlands 10->40 34 C:\Users\user\AppData\...\bluesb68412.exe, PE32 10->34 dropped 36 C:\Users\user\AppData\Local\...\bluezx[1].exe, PE32 10->36 dropped 72 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->72 19 bluesb68412.exe 1 5 10->19         started        38 ~WRF{9303992D-85E8...F-920D9254EF28}.tmp, Composite 15->38 dropped file5 signatures6 process7 signatures8 50 Multi AV Scanner detection for dropped file 19->50 52 Machine Learning detection for dropped file 19->52 54 Tries to detect virtualization through RDTSC time measurements 19->54 56 Injects a PE file into a foreign processes 19->56 22 bluesb68412.exe 19->22         started        process9 signatures10 58 Modifies the context of a thread in another process (thread injection) 22->58 60 Maps a DLL or memory area into another process 22->60 62 Sample uses process hollowing technique 22->62 64 Queues an APC in another process (thread injection) 22->64 25 explorer.exe 22->25 injected process11 process12 27 colorcpl.exe 25->27         started        30 colorcpl.exe 25->30         started        signatures13 66 Modifies the context of a thread in another process (thread injection) 27->66 68 Maps a DLL or memory area into another process 27->68 32 cmd.exe 27->32         started        70 Tries to detect virtualization through RDTSC time measurements 30->70 process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/06830db1aa3ac6ae7cf27c5b75a18607eda3406b4457c1bece07c1bda41e5e67/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2022-04-13 17:02:12 UTC
File Type:
Document
Extracted files:
4
AV detection:
13 of 41 (31.71%)
Threat level:
  5/5
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/06830db1aa3a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.05
Link:
https://yomi.yoroi.company/submissions/06830db1aa3ac6ae7cf27c5b75a18607eda3406b4457c1bece07c1bda41e5e67

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_RTF_Header_Anomaly_RID2F7F
Create hunting rule
Author:Florian Roth
Description:Detects malformed RTF header often used to trick mechanisms that check for a full RTF header
Reference:https://twitter.com/ItsReallyNick/status/975705759618158593

File information

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

Malspam

Formbook

Word file doc 06830db1aa3ac6ae7cf27c5b75a18607eda3406b4457c1bece07c1bda41e5e67

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments