MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2084194e47482bf35f4b7c5724d6cf0db56cf4f10811f727a3517579c3985b2c. 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

SHA256 hash: 2084194e47482bf35f4b7c5724d6cf0db56cf4f10811f727a3517579c3985b2c
SHA3-384 hash: 30d23f012bfb23cfd27618e7a4a1f8376f30d74b9b7b92d74c9ff032af9b490f968694e387fd0406279adc090519683c
SHA1 hash: 1f0391802a9d1da32b08fe92554936c754b1a511
MD5 hash: b6ffc3c270d3e9d0ae3ecbf74df51b4d
humanhash: ceiling-avocado-beryllium-spring
File name:itens que precisávamos.exe
Download: download sample
Signature Formbook
File size:754'176 bytes
First seen:2022-02-15 15:53:25 UTC
Last seen:2022-02-15 17:52:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:6C5k+hNpNgJmX36D+o55Cmy6cbCEJ8BDFADuvpCzYxNIm0cmJxoZOSVuAEi1Z1fn:vaKpymn6iovJqSaDwp7ImdmJ+hX1rfqh
Threatray 13'636 similar samples on MalwareBazaar
TLSH T138F4020077F73A84C07207F994E695852BB62A5E5577E77DCA5230CD0C62BC08A7EA3B
File icon (PE):PE icon
dhash icon 0012360d4d1e8606 (19 x AgentTesla, 12 x Formbook, 4 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
215
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed update.exe
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 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 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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 572686 Sample: itens que precis#U00e1vamos.exe Startdate: 15/02/2022 Architecture: WINDOWS Score: 100 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 12 other signatures 2->51 9 itens que precis#U00e1vamos.exe 7 2->9         started        process3 file4 39 C:\Users\user\AppData\...\sOTJarbCiQSzN.exe, PE32 9->39 dropped 41 C:\Users\user\AppData\Local\...\tmpAAA2.tmp, XML 9->41 dropped 43 C:\...\itens que precis#U00e1vamos.exe.log, ASCII 9->43 dropped 59 Writes to foreign memory regions 9->59 61 Adds a directory exclusion to Windows Defender 9->61 63 Injects a PE file into a foreign processes 9->63 13 RegSvcs.exe 9->13         started        16 RegSvcs.exe 9->16         started        18 powershell.exe 25 9->18         started        20 schtasks.exe 1 9->20         started        signatures5 process6 signatures7 65 Modifies the context of a thread in another process (thread injection) 13->65 67 Maps a DLL or memory area into another process 13->67 69 Sample uses process hollowing technique 13->69 71 Queues an APC in another process (thread injection) 13->71 22 explorer.exe 13->22         started        25 explorer.exe 13->25 injected 73 Tries to detect virtualization through RDTSC time measurements 16->73 27 conhost.exe 18->27         started        29 conhost.exe 20->29         started        process8 signatures9 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 31 cmd.exe 1 22->31         started        33 explorer.exe 1 132 22->33         started        35 wscript.exe 25->35         started        process10 process11 37 conhost.exe 31->37         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-02-15 15:54:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:gn27 rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
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
Unpacked files
SH256 hash:
4af67fe719b6d568f75355ea4ea17bb40829338b1808924bdfdb00983879116d
MD5 hash:
de9a3c641eee60c823d76777dc7dfff7
SHA1 hash:
0eed800b61726aef17a63451f1c43dd844a58b29
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
63b6403c6ea1378c0ff49f069597b45496dba6c0161d240e64885ab6f0806d04
MD5 hash:
72b143fd989c37772556bf302ac33be1
SHA1 hash:
ee377db4778e70261d34f8210208069df41a12ef
SH256 hash:
1053060bdfb0ead348aedc98591302227e3d3ef35edd90ce42206498fad296fe
MD5 hash:
616d759b45c691c49febfbc25316ff50
SHA1 hash:
cef7dcb7a85167537f0edca6dd0ca01a28b3ba56
SH256 hash:
7df3696bf9dcf62b2a6c9aa4d31aebf6b47470f2319b16f29083946bc26d5c74
MD5 hash:
2d6794c71f9f310054de2dfcdc0726db
SHA1 hash:
4d68a5cf1fbdc090347128200358938c2d68a78b
SH256 hash:
2084194e47482bf35f4b7c5724d6cf0db56cf4f10811f727a3517579c3985b2c
MD5 hash:
b6ffc3c270d3e9d0ae3ecbf74df51b4d
SHA1 hash:
1f0391802a9d1da32b08fe92554936c754b1a511
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
Rule name:Skystars_Malware_Imphash
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 2084194e47482bf35f4b7c5724d6cf0db56cf4f10811f727a3517579c3985b2c

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments