MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2bec4da3283f4d9329b155c12e5ee6f5f8943bb43d9e66c1767b877b89a19063. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2bec4da3283f4d9329b155c12e5ee6f5f8943bb43d9e66c1767b877b89a19063
SHA3-384 hash: 1c9cd897c054a7b88abfa857ed908ef4470d7f2fb16a19331b8722e411e86d2ef20e2a7a22402f95e34a06913a5647e1
SHA1 hash: 089aca2e6717d06b5059d8363e6f797694ddecde
MD5 hash: 74f7b0214e3591767e7a57cb1e2f7c4e
humanhash: timing-kansas-uniform-colorado
File name:Doc_3975465846584657465846486435454,pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:104'448 bytes
First seen:2021-02-22 07:20:46 UTC
Last seen:2021-02-22 08:41:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 3072:cCnGbpcu5PPKCblLCdC1TcIFr33QxB4KU5YGdOr/82fKcejIXWrNo3B:vncWQl
Threatray 3'859 similar samples on MalwareBazaar
TLSH E1A3DA90F185CCEAF81662B9985FDC101263699FE4B1561E358B7B3EA9B33431067E0F
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: pro.mxout.rediffmailpro.com
Sending IP: 119.252.152.37
From: SRINIVAS <supply@airospares.com>
Subject: Order Inquiry
Attachment: Doc_3975465846584657465846486435454_pdf.7z (contains "Doc_3975465846584657465846486435454,pdf.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
100
Origin country :
n/a
Vendor Threat Intelligence
Detection:
DLAgent06
Create hunting rule
Link:
https://www.capesandbox.com/analysis/118220/
Detection(s):
SecuriteInfo.com..29574.29155.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:
Result
Verdict:
UNKNOWN
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/613840
Signature
Adds a directory exclusion to Windows Defender
Binary contains a suspicious time stamp
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Creates an autostart registry key pointing to binary in C:\Windows
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Found malware configuration
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
System process connects to network (likely due to code injection or exploit)
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 355934 Sample: Doc_39754658465846574658464... Startdate: 22/02/2021 Architecture: WINDOWS Score: 100 68 www.informaticas.net 2->68 70 informaticas.net 2->70 84 Found malware configuration 2->84 86 Malicious sample detected (through community Yara rule) 2->86 88 Multi AV Scanner detection for submitted file 2->88 90 8 other signatures 2->90 9 Doc_3975465846584657465846486435454,pdf.exe 19 6 2->9         started        14 explorer.exe 2->14         started        16 explorer.exe 2->16         started        18 8 other processes 2->18 signatures3 process4 dnsIp5 72 coroloboxorozor.com 104.21.71.230, 49702, 80 CLOUDFLARENETUS United States 9->72 64 C:\Windows\Resources\Themes\...\svchost.exe, PE32 9->64 dropped 66 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 9->66 dropped 92 Creates an autostart registry key pointing to binary in C:\Windows 9->92 94 Adds a directory exclusion to Windows Defender 9->94 96 Tries to detect virtualization through RDTSC time measurements 9->96 102 2 other signatures 9->102 20 cmd.exe 9->20         started        22 powershell.exe 25 9->22         started        24 powershell.exe 25 9->24         started        34 2 other processes 9->34 26 svchost.exe 14->26         started        98 Drops executables to the windows directory (C:\Windows) and starts them 16->98 30 svchost.exe 16->30         started        74 127.0.0.1 unknown unknown 18->74 76 192.168.2.1 unknown unknown 18->76 100 Changes security center settings (notifications, updates, antivirus, firewall) 18->100 32 MpCmdRun.exe 18->32         started        file6 signatures7 process8 dnsIp9 36 conhost.exe 20->36         started        38 timeout.exe 20->38         started        40 conhost.exe 22->40         started        42 conhost.exe 24->42         started        78 172.67.172.17, 49714, 49717, 80 CLOUDFLARENETUS United States 26->78 80 coroloboxorozor.com 26->80 104 Multi AV Scanner detection for dropped file 26->104 106 Machine Learning detection for dropped file 26->106 108 Adds a directory exclusion to Windows Defender 26->108 112 3 other signatures 26->112 44 cmd.exe 26->44         started        46 powershell.exe 26->46         started        48 powershell.exe 26->48         started        52 2 other processes 26->52 82 coroloboxorozor.com 30->82 110 System process connects to network (likely due to code injection or exploit) 30->110 50 conhost.exe 32->50         started        signatures10 process11 process12 54 conhost.exe 44->54         started        56 timeout.exe 44->56         started        58 conhost.exe 46->58         started        60 conhost.exe 48->60         started        62 explorer.exe 52->62 injected
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2bec4da3283f4d9329b155c12e5ee6f5f8943bb43d9e66c1767b877b89a19063/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fpwe3izih5gzgknrkxas4xxg6x4jio5uhwpgnqlwpodxxcnbsbrq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1432f0240c91b7439722df807e35ef9b4cc9b126f3e5d42cedb27b28751118d7
Formbook
149bc7bb666f2eabcf946822bd316709ddeeef787f059687415f98c71ad47783
Formbook
170eb254fe7cae506272dd7f934000734f55648fcefab6843eca50311a98a07d
Formbook
45fda70b08542ae52a8228a61e317973f42b477583841e384e9817d7d2dd3709
Formbook
67bf85e54212cc6dd8e3f3bdfe292d7440ae7f7ad5f131f9c8b5ea51a86c1e96
Formbook
8241caa4d6c5a09290864492d19dee143f0f80074d370135c0f91bad01c16ee3
Formbook
a4ed754c1a38fd8fc24bb4ec7f5da899c254df070bcc8cfd7b16778701c4b72d
Formbook
a8fe6d7fa624e8e96f71d3ff6375a012b44b51f06179feb7cef8c33fd6d38570
Formbook
cfc09cd2a2109a174ccbc346779f2e19316be4601173e2e85c3e4314cc139017
Formbook
dc5f7d89ab2465597ff7fa9f544326613aeaab2afa6e2e457ba5fc0da15bd450
Formbook
+ 3'849 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader evasion loader persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/210222-py3ern2l3e/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Windows security modification
Xloader Payload
Formbook
UAC bypass
Windows security bypass
Xloader
Malware Config
C2 Extraction:
http://www.aubonmarcheduparc.com/rina/
Unpacked files
SH256 hash:
2bec4da3283f4d9329b155c12e5ee6f5f8943bb43d9e66c1767b877b89a19063
MD5 hash:
74f7b0214e3591767e7a57cb1e2f7c4e
SHA1 hash:
089aca2e6717d06b5059d8363e6f797694ddecde
Link:
https://www.unpac.me/results/20dee41b-cd1a-4ec2-b86b-598685b3eeb2/
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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

7z 00bf33c62a386f978828576c7d9886c22c75d71fc13e3ffff62bcfbcbd468af4

Formbook

Executable exe 2bec4da3283f4d9329b155c12e5ee6f5f8943bb43d9e66c1767b877b89a19063

(this sample)

  
Dropped by
MD5 06b18862e4ffdc2a7cc05b32dd76d551
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/118220/
  
Dropped by
SHA256 00bf33c62a386f978828576c7d9886c22c75d71fc13e3ffff62bcfbcbd468af4

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