MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 82f59dc21ab78418dfaa3c6ad30c6c776848db7d32e78dcefc80c30f34099c1a. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
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SHA256 hash: 82f59dc21ab78418dfaa3c6ad30c6c776848db7d32e78dcefc80c30f34099c1a
SHA3-384 hash: 3ad0bfd4e8e1dc6bb7c667bdf67e30cfc06e4d87d5e24777359382722700bdfe5638d05ed9c1ad9c0c3a66c18cacd4bf
SHA1 hash: 917f94424e11950f9af95b290b1fcfa50cc3ef04
MD5 hash: 21555490c16496bf072353f4fa4a4289
humanhash: bluebird-uniform-bacon-asparagus
File name:21555490c16496bf072353f4fa4a4289.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:476'485 bytes
First seen:2022-02-11 18:12:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla)
ssdeep 6144:nw82uaAJScHj0N86PENDT6oGqpxH2CxYhkj8WZ0AUBKqMDAPQuwA/VCOHT:28aBCxliCjJnUBzMsNvT
Threatray 13'250 similar samples on MalwareBazaar
TLSH T18DA40681204ABB69DA150B71BB99D01E4F7759B6A9C2810F36D57EFEB7AC00DD30312B
File icon (PE):PE icon
dhash icon 30f0e0f0e0f0f030 (22 x Formbook, 12 x AgentTesla, 2 x RedLineStealer)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
294
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/240980/
Detection(s):
SecuriteInfo.com.FakeAV.CXA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
DNS request
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
Sending a custom TCP request
Sending an HTTP GET request
Connecting to a non-recommended domain
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6206a735289e2f3e4fc45c89/reports/d7d344b0-f4e3-4eba-9455-aac4632ab12b/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5468ad81-b6e7-4da0-b9ec-c29836203b5a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/938508
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 570986 Sample: B4uuz3FvH1.exe Startdate: 11/02/2022 Architecture: WINDOWS Score: 100 45 Multi AV Scanner detection for domain / URL 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 5 other signatures 2->51 11 B4uuz3FvH1.exe 19 2->11         started        process3 file4 35 C:\Users\user\AppData\Local\...\qbzfqmfh.exe, PE32 11->35 dropped 14 qbzfqmfh.exe 11->14         started        process5 signatures6 59 Multi AV Scanner detection for dropped file 14->59 61 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->61 63 Tries to detect virtualization through RDTSC time measurements 14->63 65 Injects a PE file into a foreign processes 14->65 17 qbzfqmfh.exe 14->17         started        process7 signatures8 37 Modifies the context of a thread in another process (thread injection) 17->37 39 Maps a DLL or memory area into another process 17->39 41 Sample uses process hollowing technique 17->41 43 Queues an APC in another process (thread injection) 17->43 20 explorer.exe 17->20 injected process9 process10 22 explorer.exe 20->22         started        25 autoconv.exe 20->25         started        signatures11 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 27 cmd.exe 1 22->27         started        29 explorer.exe 1 152 22->29         started        31 explorer.exe 97 22->31         started        process12 process13 33 conhost.exe 27->33         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/82f59dc21ab78418dfaa3c6ad30c6c776848db7d32e78dcefc80c30f34099c1a/
Threat name:
Win32.Trojan.Tnega
Create hunting rule
Status:
Malicious
First seen:
2022-02-11 18:13:13 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
20 of 27 (74.07%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
31168981af16e0fc209774a91e04e5aaf622cacbed12e970b7a35db0705174d6
Formbook
4d1ac5962b58c0bf6386b85fc1c2029efb0c8d5ccf0054733795eec1ea8b3291
Formbook
7cbd8cc35b03d65491ad01b6a44b84dc047e6663189554201c24dbfbeb81473c
Formbook
88d97538adda1f29e2f088883d64db0776c2f7e9c80a2a789785c4af970ec129
Formbook
b7cf8d9d8db4c5eaf796d35251bfc2b24f34c2c77d2ca82a1ebf470323c0894f
Formbook
d2cc3484cdabe8305bf9afd35530ca1118ca2c308408dc7140c3a94b392b60bb
Formbook
e8720afe9895124761086a0f00aa515997015669cc5332aebe99d5ea02ca7377
Formbook
+ 13'240 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:asus loader persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/220211-wtqx2adaf7/
Behaviour
Gathers network information
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Xloader Payload
Formbook
Xloader
Unpacked files
SH256 hash:
887a88286320fa0bad5f92268453581a9f99a34fef09c240a853e3f2de8c5bea
MD5 hash:
00852adfbfa0e748df5206561a15de18
SHA1 hash:
818a22478cdd475f29a8f4f38beec058729fb723
Link:
https://www.unpac.me/results/a234ae88-f941-4a3c-a2c6-eff07fe03ccc/
SH256 hash:
8a824b9990a37b0418f2135a9eeb0d0d29401557d1859879a839809d26cc5d41
MD5 hash:
69e27a7beda7330fbb867e2805690a81
SHA1 hash:
147c5ef4305764f1e24feaa4e7a718743ead72ef
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/a234ae88-f941-4a3c-a2c6-eff07fe03ccc/
Parent samples :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 hash:
82f59dc21ab78418dfaa3c6ad30c6c776848db7d32e78dcefc80c30f34099c1a
MD5 hash:
21555490c16496bf072353f4fa4a4289
SHA1 hash:
917f94424e11950f9af95b290b1fcfa50cc3ef04
Link:
https://www.unpac.me/results/a234ae88-f941-4a3c-a2c6-eff07fe03ccc/
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:exec_macros
Create hunting rule
Author:ddvvmmzz
Description:exec macros
Rule name:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:obfuscate_macros
Create hunting rule
Author:ddvvmmzz
Description:obfuscate macros
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Web download

Formbook

Executable exe 82f59dc21ab78418dfaa3c6ad30c6c776848db7d32e78dcefc80c30f34099c1a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2040362/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/240980/

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