MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 76e0bf03767dfd6316810d96d2404daf16397a0ef3b90daf96ad67bc461209a8. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 76e0bf03767dfd6316810d96d2404daf16397a0ef3b90daf96ad67bc461209a8
SHA3-384 hash: b9c2a9c42f28488d6f172d6cb3f42f637115f62cf3a8a85624a0f8c44db1b167d01d8291f9f5eeb8179d0406263e14d3
SHA1 hash: ec960c01a39fed146720228f4ad3587bbe0a7f91
MD5 hash: 449f902658a40247d149e1f82666701f
humanhash: salami-london-princess-beryllium
File name:zWC6iOTJphZA0sb.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:800'256 bytes
First seen:2020-10-13 12:27:20 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:ZuL0V8mspOT2F5ocVn8KusKeicEI9flK9vHdmkycYlrsJ3ItwSTrCng:+PcT2focsc99i9mb1rs9ItB3C
Threatray 2'459 similar samples on MalwareBazaar
TLSH 54050186227A572EE43E47F712F7501803B23E16252EEA4DBDF174EE3872B904915B63
Reporter abuse_ch
Tags:exe FormBook Yahoo


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: sonic304-19.consmr.mail.sg3.yahoo.com
Sending IP: 106.10.242.209
From: MASHA TRADEING <masha_tradeing@yahoo.com.sg>
Subject: : Fwd: Wire Transfer Payment
Attachment: HSEN578.rar (contains "zWC6iOTJphZA0sb.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
115
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/70438/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/489646
Signature
.NET source code contains potential unpacker
Binary contains a suspicious time stamp
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected FormBook malware
Injects a PE file into a foreign processes
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Steal Google chrome login data
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 297265 Sample: zWC6iOTJphZA0sb.exe Startdate: 13/10/2020 Architecture: WINDOWS Score: 100 57 Malicious sample detected (through community Yara rule) 2->57 59 Multi AV Scanner detection for dropped file 2->59 61 Sigma detected: Scheduled temp file as task from temp location 2->61 63 9 other signatures 2->63 10 zWC6iOTJphZA0sb.exe 6 2->10         started        process3 file4 41 C:\Users\user\AppData\...\hePVXBxWVUJ.exe, PE32 10->41 dropped 43 C:\Users\user\AppData\Local\...\tmp7F67.tmp, XML 10->43 dropped 45 C:\Users\user\...\zWC6iOTJphZA0sb.exe.log, ASCII 10->45 dropped 69 Tries to detect virtualization through RDTSC time measurements 10->69 71 Injects a PE file into a foreign processes 10->71 73 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 10->73 14 zWC6iOTJphZA0sb.exe 10->14         started        17 schtasks.exe 1 10->17         started        19 zWC6iOTJphZA0sb.exe 10->19         started        21 zWC6iOTJphZA0sb.exe 10->21         started        signatures5 process6 signatures7 75 Modifies the context of a thread in another process (thread injection) 14->75 77 Maps a DLL or memory area into another process 14->77 79 Sample uses process hollowing technique 14->79 81 Queues an APC in another process (thread injection) 14->81 23 explorer.exe 14->23 injected 27 conhost.exe 17->27         started        process8 dnsIp9 51 therussellpinto.com 194.59.164.147, 49763, 49764, 49765 AS-HOSTINGERLT Germany 23->51 53 contaclessfundraising.com 184.168.131.241, 49766, 49767, 49768 AS-26496-GO-DADDY-COM-LLCUS United States 23->53 55 4 other IPs or domains 23->55 67 System process connects to network (likely due to code injection or exploit) 23->67 29 cscript.exe 18 23->29         started        signatures10 process11 file12 47 C:\Users\user\AppData\...\5-2logrv.ini, data 29->47 dropped 49 C:\Users\user\AppData\...\5-2logri.ini, data 29->49 dropped 83 Detected FormBook malware 29->83 85 Tries to steal Mail credentials (via file access) 29->85 87 Tries to harvest and steal browser information (history, passwords, etc) 29->87 89 3 other signatures 29->89 33 cmd.exe 2 29->33         started        signatures13 process14 file15 39 C:\Users\user\AppData\Local\Temp\DB1, SQLite 33->39 dropped 65 Tries to harvest and steal browser information (history, passwords, etc) 33->65 37 conhost.exe 33->37         started        signatures16 process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/76e0bf03767dfd6316810d96d2404daf16397a0ef3b90daf96ad67bc461209a8/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-13 07:43:08 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=o3ql6a3wpx6wgfubbwlneqcnv4lds6qo6o4q3l4wvvt3yrqsbgua._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
08c7131cac4c6c62004d8b2e3ce0b85d1b35e7325f753a865206814cd87ecdf4
FormBook
3d026a637ea567d4b3a0372ea85f06773c49996555e4741a8503735cb1e77ba8
FormBook
62ddfbbb9039c0671aa08af5d0fdd0fe949eb96e435c631a57e931e4b19743a9
FormBook
af61853ca27001c0721463fce68bb033a9084e9fcd0c6ced3acd7fc3ea0e957a
FormBook
bced2082dc766d01bcbb3b1ad8da3b6e482caaef683444a76fadb3bd543d26ec
FormBook
c5a6b816ef66b1c222ca59df4e8e75eed744b3d758430eef345c78e9417aa138
FormBook
d18ed06b9419076750525d6324bce7702186263efaa0ab0d3647510268883f37
FormBook
d86a036697fc43fa7041bd5e298ff785adcf44c78057f3c1c9db8fa9f694ce64
FormBook
e0693087d46213280ce4281058ff53b07f433a9b07f4eaebf41314dd724f8e73
FormBook
e63d9fff34fc1c54b4e9bcb779e8101ca5e65f84d84e153c0788dec7d8ee5d42
FormBook
+ 2'449 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat spyware trojan stealer family:formbook
Link:
https://tria.ge/reports/201013-48smmsygq2/
Behaviour
Creates scheduled task(s)
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.trusted-inspections.com/k8b/
Unpacked files
SH256 hash:
76e0bf03767dfd6316810d96d2404daf16397a0ef3b90daf96ad67bc461209a8
MD5 hash:
449f902658a40247d149e1f82666701f
SHA1 hash:
ec960c01a39fed146720228f4ad3587bbe0a7f91
Link:
https://www.unpac.me/results/de02fcf4-1fcf-47d1-ab02-e33b2637233b/
SH256 hash:
607f04646c9f16f7c23fa69d4b8f660fc7c44d40e4f73a0c70a2b315debdaa8b
MD5 hash:
a90baadadf904455325f7bc787185c7b
SHA1 hash:
7d833bb819d638008c98be469b05db2feaf201cd
Link:
https://www.unpac.me/results/de02fcf4-1fcf-47d1-ab02-e33b2637233b/
SH256 hash:
a1e63ae08314ffb308026ba1d41a96f6725ad5a3c5173c4dc8c48aa2aee907e0
MD5 hash:
f760086fb944cb1b133eb2405bf048b1
SHA1 hash:
edc192270515c6ff5da5471016146b22ec6400e7
Link:
https://www.unpac.me/results/de02fcf4-1fcf-47d1-ab02-e33b2637233b/
SH256 hash:
5a144f9e72d86bf7789929db2bb48481a8ce2d876da64d70c74a456658dc0b97
MD5 hash:
78d30848461d468119773c4c949b10b0
SHA1 hash:
91f23f2766aa75da9c6fb67e1dc437f87c2422a5
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/de02fcf4-1fcf-47d1-ab02-e33b2637233b/
Parent samples :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 note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/76e0bf03767dfd6316810d96d2404daf16397a0ef3b90daf96ad67bc461209a8

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819

File information

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

Malspam

FormBook

rar 8395f9c405da6869f0812be195343ff36bc172cd39fe2a10bd0db3b372244768

FormBook

Executable exe 76e0bf03767dfd6316810d96d2404daf16397a0ef3b90daf96ad67bc461209a8

(this sample)

  
Dropped by
MD5 d4ff66bbeefe4e9314470f6db41515de
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/70438/
  
Dropped by
SHA256 8395f9c405da6869f0812be195343ff36bc172cd39fe2a10bd0db3b372244768

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