MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d687241aac17bdc6a5bf379759e0422c1e46e6776b13c5c5eea0268d41f16f54. 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: d687241aac17bdc6a5bf379759e0422c1e46e6776b13c5c5eea0268d41f16f54
SHA3-384 hash: 63f76dcc924c9b5d3f7851e928ddf5778c34772ca08669a5594a93123d2c917bd0db2fedef19f93c6b963ae1a83d1a8b
SHA1 hash: 4cd211e8ca4387f3dd50259060109bb7ce90fedf
MD5 hash: a5b523d9105d83c4eaa863f63d1ad07e
humanhash: pip-july-pluto-jupiter
File name:URGENTNÍ OBJEDNÁVKA.exe
Download: download sample
Signature Formbook
File size:1'401'856 bytes
First seen:2022-03-28 10:53:13 UTC
Last seen:2022-03-28 11:48:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:YAKKBUXYLi4LbkXqQZqP9tKAXuo/I/rLx4PKOqHImL8:XjUXYDL4XqQamAojLxeuH
Threatray 10'676 similar samples on MalwareBazaar
TLSH T153557B993250719EC867C932CDA85CECEA207C665F1BC207A053329D9A7DA97CF146F3
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
223
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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
explorer.exe obfuscated packed replace.exe update.exe
Result
Verdict:
UNKNOWN
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
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for dropped file
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Add Scheduled 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 netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 598220 Sample: URGENTN#U00cd OBJEDN#U00c1VKA.exe Startdate: 28/03/2022 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for URL or domain 2->47 49 12 other signatures 2->49 10 URGENTN#U00cd OBJEDN#U00c1VKA.exe 7 2->10         started        process3 file4 35 C:\Users\user\AppData\...\ggwJJPEtaHD.exe, PE32 10->35 dropped 37 C:\Users\...\ggwJJPEtaHD.exe:Zone.Identifier, ASCII 10->37 dropped 39 C:\Users\user\AppData\Local\...\tmp250D.tmp, XML 10->39 dropped 41 C:\...\URGENTN#U00cd OBJEDN#U00c1VKA.exe.log, ASCII 10->41 dropped 53 Adds a directory exclusion to Windows Defender 10->53 14 RegSvcs.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        signatures5 process6 signatures7 61 Modifies the context of a thread in another process (thread injection) 14->61 63 Maps a DLL or memory area into another process 14->63 65 Sample uses process hollowing technique 14->65 67 2 other signatures 14->67 21 explorer.exe 14->21 injected 24 conhost.exe 17->24         started        26 conhost.exe 19->26         started        process8 signatures9 51 Uses netsh to modify the Windows network and firewall settings 21->51 28 netsh.exe 21->28         started        process10 signatures11 55 Modifies the context of a thread in another process (thread injection) 28->55 57 Maps a DLL or memory area into another process 28->57 59 Tries to detect virtualization through RDTSC time measurements 28->59 31 cmd.exe 1 28->31         started        process12 process13 33 conhost.exe 31->33         started       
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2022-03-28 16:48:50 UTC
AV detection:
20 of 26 (76.92%)
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 WriteProcessMemory
Enumerates physical storage devices
Program crash
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:
f445d0a45ac32104772d4950f2435f006ea55a4ef933b223a9ae41842842dc90
MD5 hash:
b6064ece687ed94704dbf8e6490d4a9f
SHA1 hash:
b1cdd386615d0b1ed6f714b8eb107c828794ad37
SH256 hash:
613b2819d35360cbfe6c94b2b998d1a4998c89f5bdef505e0e158e1288ab684c
MD5 hash:
3096cbaf4b5d40f9c61bf7ce13fde62f
SHA1 hash:
6b3c580e51fd306bfdc2e727ca3bc7805aba4b53
SH256 hash:
b68a4f14290d8dde90ca67ffca4a47b4f53e321e4e85d852b3afe4b730d2fe7c
MD5 hash:
5e37f1c70eb0cf89231d07cf57c59f7e
SHA1 hash:
39f84c87e3f3e59a311a44ca36084c45e46f5241
SH256 hash:
d687241aac17bdc6a5bf379759e0422c1e46e6776b13c5c5eea0268d41f16f54
MD5 hash:
a5b523d9105d83c4eaa863f63d1ad07e
SHA1 hash:
4cd211e8ca4387f3dd50259060109bb7ce90fedf
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 d687241aac17bdc6a5bf379759e0422c1e46e6776b13c5c5eea0268d41f16f54

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment

Comments