MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d6852edf73457b9a9db48a0f0220f3514bfcfdc0bb11a03b8496cccf45cc671. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
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SHA256 hash: 4d6852edf73457b9a9db48a0f0220f3514bfcfdc0bb11a03b8496cccf45cc671
SHA3-384 hash: 9ceaabb63b4622a79f324d75a0ce590610a2dda128b3de55e534a1675699e3e3d9a2d51a76dbfba362a01a71305407b6
SHA1 hash: 2ed5c0d49a6e394f37b69a705bc4c3d078ad35b1
MD5 hash: 262da631c5a3138342b3d26b5d9a87b4
humanhash: quiet-king-bulldog-foxtrot
File name:Orden de compra.Pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:480'768 bytes
First seen:2022-02-07 08:28:44 UTC
Last seen:2022-02-07 09:03:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:OovVO7J/33YH4oDxFQCU2Gy8SGtdgyQ71Zd:PVOV/3MvtJ0dTQ7Pd
Threatray 10'860 similar samples on MalwareBazaar
TLSH T1D7A49EB4A1A78591F10BC974257CF9A002B234E3A9CA0D79277A3645CFEDF553E8460F
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
130
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/234142/
Detection(s):
SecuriteInfo.com.PUA.EmbeddedEXE-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6200d851accdde96b5e4718d/reports/64722220-e1bf-484d-aee7-b1bcab6db369/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f50c15fa-c3ca-479b-a466-e64c6e2d8dce
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/934967
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 567448 Sample: Orden de compra.Pdf.exe Startdate: 07/02/2022 Architecture: WINDOWS Score: 100 42 Multi AV Scanner detection for domain / URL 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 14 other signatures 2->48 10 Orden de compra.Pdf.exe 7 2->10         started        process3 file4 36 C:\Users\user\AppData\Roaming\OrJJuDu.exe, PE32 10->36 dropped 38 C:\Users\user\AppData\Local\...\tmp4D5E.tmp, XML 10->38 dropped 40 C:\Users\user\...\Orden de compra.Pdf.exe.log, ASCII 10->40 dropped 50 Writes to foreign memory regions 10->50 52 Allocates memory in foreign processes 10->52 54 Adds a directory exclusion to Windows Defender 10->54 56 Injects a PE file into a foreign processes 10->56 14 RegSvcs.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        signatures5 process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 2 other signatures 14->70 21 explorer.exe 14->21 injected 23 conhost.exe 17->23         started        25 conhost.exe 19->25         started        process8 process9 27 wlanext.exe 21->27         started        signatures10 58 Modifies the context of a thread in another process (thread injection) 27->58 60 Maps a DLL or memory area into another process 27->60 62 Tries to detect virtualization through RDTSC time measurements 27->62 30 cmd.exe 1 27->30         started        32 explorer.exe 1 126 27->32         started        process11 process12 34 conhost.exe 30->34         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4d6852edf73457b9a9db48a0f0220f3514bfcfdc0bb11a03b8496cccf45cc671/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-02-04 18:47:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
29 of 43 (67.44%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jvuff3pxgrl3tko3jcqpaiqpgukl7t64boyrua5yjfwmz5c4yzyq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
13ce54d053256ed33282cc8e8a47f9a3c83f9b96f4230df70a7b947c55c611f5
Formbook
61731a8887ca50f031dca2672ede53eb0f066a93487877cd0c79e4721528cd3c
Formbook
95773ba387f93d567c9b0dd7e7c6a71e67e9545b146231c7acfc24d040fdd249
Formbook
96de11fc0f948fc3039f297475ba8abfcedaa7a9718634359286fe49156cd216
Formbook
9e6f627734e059c3e53c3c1f0211248969f412c652ea1819d83977dac47c7fa6
Formbook
b76cdf3f203937fdd5a57710faf9c4d78281f4b893e8caff17a5053bb741bffc
Formbook
bcba0056c80d1a5c320dd74fea9caba51cc2f41c4d05215df1ab825a5ca10de4
Formbook
eb267eb6493edaf0a9845917245f1cac006ed232ad0fca8969be3886009242af
Formbook
+ 10'850 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:d2g7 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220207-kdlslahhbq/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
55387d8366303a794ee0f3d71a04617f0f1ee9c67a55c913f9b6b870efa123b8
MD5 hash:
c7a79737aa6d4fadfac3b251d48773c4
SHA1 hash:
1afbe9593ed76bd2edb0e0dba4512eb3c8d43fb3
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/ef83bb10-18d3-4979-a9f8-5c33c1441fc6/
Parent samples :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 hash:
6f1b89bc3013177c101fe4448340c48c0dd08d19017a798bd11c2d0f76be1fbc
MD5 hash:
60a604887b3616e3ed86d81fab0a9ebb
SHA1 hash:
8db84f5f4c569c86c69aff464b2ffc4ce3dafa20
Link:
https://www.unpac.me/results/ef83bb10-18d3-4979-a9f8-5c33c1441fc6/
SH256 hash:
e1b8cbc9d2831498cd0af279bc8379754327e4dcddd145067f73c6eea68b546b
MD5 hash:
a3a3f8512c1b0d62cb5256dfee8ae1bf
SHA1 hash:
5da0fa6891f9c5ace727e9a81a11b3daddb102bd
Link:
https://www.unpac.me/results/ef83bb10-18d3-4979-a9f8-5c33c1441fc6/
SH256 hash:
4d6852edf73457b9a9db48a0f0220f3514bfcfdc0bb11a03b8496cccf45cc671
MD5 hash:
262da631c5a3138342b3d26b5d9a87b4
SHA1 hash:
2ed5c0d49a6e394f37b69a705bc4c3d078ad35b1
Link:
https://www.unpac.me/results/ef83bb10-18d3-4979-a9f8-5c33c1441fc6/
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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe 4d6852edf73457b9a9db48a0f0220f3514bfcfdc0bb11a03b8496cccf45cc671

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/234142/

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