MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dbdd8dc5bf8c5f81b9cbead4224bade6cd697f6f00cbab59bf084f6e39578a8d. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments

SHA256 hash: dbdd8dc5bf8c5f81b9cbead4224bade6cd697f6f00cbab59bf084f6e39578a8d
SHA3-384 hash: d49a7032cbbcbf1fe8c7c9ad69edcd729d37e2cf9c24ce677660b8b0270f3751798a76685b5cff2456d5cfbfe7e498a6
SHA1 hash: 4772c6f89b277885a1d9bd50fe792c1190f3ac5c
MD5 hash: 0c51f293cf4446111ee3074e9bc538cf
humanhash: oklahoma-jupiter-mississippi-zulu
File name:Quotation.exe
Download: download sample
Signature Formbook
File size:512'000 bytes
First seen:2020-10-12 07:35:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:d+9BsaQbJOBRxBOTYioennREJF0cdwGNGB:d+Ma4QP4YFenmBGB
Threatray 2'575 similar samples on MalwareBazaar
TLSH FEB4BEF13D92E8BEFD2A823194A184C3E27622F73F54890E7EAD431C4E67216576534E
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: apioptimum.live
Sending IP: 156.0.214.30
From: IMPORT&EXPORT<Agent010@apioptimum.live>
Subject: RE: INQUIRY/QUOTE REQUEST
Attachment: Quotation.zip (contains "Quotation.exe")

Intelligence


File Origin
# of uploads :
1
# of downloads :
111
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Sending a UDP request
Creating a window
Creating a file
Creating a process from a recently created file
Launching the process to change network settings
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Initial sample is a PE file and has a suspicious name
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 296529 Sample: Quotation.exe Startdate: 12/10/2020 Architecture: WINDOWS Score: 100 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus / Scanner detection for submitted sample 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 5 other signatures 2->47 9 Quotation.exe 8 2->9         started        process3 file4 27 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 9->27 dropped 29 C:\Users\user\AppData\...\Quotation.exe.log, ASCII 9->29 dropped 31 C:\Users\user\AppData\...\AgileDotNetRT.dll, PE32 9->31 dropped 33 C:\Users\user\AppData\Local\Temp\...\D.dll, PE32 9->33 dropped 49 Writes to foreign memory regions 9->49 51 Allocates memory in foreign processes 9->51 53 Tries to detect virtualization through RDTSC time measurements 9->53 55 Injects a PE file into a foreign processes 9->55 13 AddInProcess32.exe 9->13         started        signatures5 process6 signatures7 57 Modifies the context of a thread in another process (thread injection) 13->57 59 Maps a DLL or memory area into another process 13->59 61 Sample uses process hollowing technique 13->61 63 2 other signatures 13->63 16 cscript.exe 13->16         started        19 explorer.exe 13->19 injected process8 signatures9 35 Modifies the context of a thread in another process (thread injection) 16->35 37 Maps a DLL or memory area into another process 16->37 39 Tries to detect virtualization through RDTSC time measurements 16->39 21 cmd.exe 1 16->21         started        23 autochk.exe 19->23         started        process10 process11 25 conhost.exe 21->25         started       
Threat name:
ByteCode-MSIL.Backdoor.Androm
Status:
Malicious
First seen:
2020-10-12 05:33:55 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.networkafterparty.com/jub/
Unpacked files
SH256 hash:
dbdd8dc5bf8c5f81b9cbead4224bade6cd697f6f00cbab59bf084f6e39578a8d
MD5 hash:
0c51f293cf4446111ee3074e9bc538cf
SHA1 hash:
4772c6f89b277885a1d9bd50fe792c1190f3ac5c
SH256 hash:
89aa143c91d8cace96581d1ad1e4a67060238498168d9e412227019a838574a3
MD5 hash:
beadcc53a3524ce380a7b07b4da47d57
SHA1 hash:
7014b2381ef1ca0f0c8f1b0884315260dc73932f
SH256 hash:
f8bee4108a324df32ad5a2ebafa6b7f411402a21e2598cf9db66486970f80fdd
MD5 hash:
a92da98ff6f5ae608503d074617bcc2a
SHA1 hash:
d3eafcccca011bb3a7a5ae52dd9704ceafcde472
SH256 hash:
e208898926455e8583ee56cd8c57ce3dbc6b2aa936a3104fe39506d17e91249e
MD5 hash:
d59424c41bbd15606522ac33a1c13447
SHA1 hash:
296fb0ed006baabdc895761db6bbc5bd414cded5
Detections:
win_formbook_g0 win_formbook_auto
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:Formbook
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


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

Malspam

Formbook

Executable exe dbdd8dc5bf8c5f81b9cbead4224bade6cd697f6f00cbab59bf084f6e39578a8d

(this sample)

  
Delivery method
Distributed via e-mail attachment

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