MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 35ef7f464caa7cc3d93a0bd692aa8892284a56b098ae94ec9a70c2e876091b88. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments

SHA256 hash: 35ef7f464caa7cc3d93a0bd692aa8892284a56b098ae94ec9a70c2e876091b88
SHA3-384 hash: 7a58a30e90994c907b0514ea602dea652146141cbe7bb1064319ce86409ac7b1eba743db76b1e27eebac804d28d11524
SHA1 hash: e2ca5816f42de51b92f857af643c73b80bdf0f68
MD5 hash: 30705fdccd044ab5e1725b57b89ac5ef
humanhash: robert-burger-skylark-connecticut
File name:Urgent Purchase Order.exe
Download: download sample
Signature Formbook
File size:583'680 bytes
First seen:2022-04-13 13:27:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:S0R4qiID7A9e8FOhTdpZQjZfmcMIu2olDymI5Uc4I/d:SDqiI3A92jkolyT
Threatray 14'075 similar samples on MalwareBazaar
TLSH T1EBC4E120F1A97BA6D52903F81834914017B6BB4AB52EC51D6CFA71CE5932BC33652F2F
Reporter malwarelabnet
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
382
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Urgent Purchase Order.exe
Verdict:
Malicious activity
Analysis date:
2022-04-13 14:54:37 UTC
Tags:
formbook trojan stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
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
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
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: Application Executed Non-Executable Extension
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
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: 608713 Sample: Urgent Purchase Order.exe Startdate: 13/04/2022 Architecture: WINDOWS Score: 100 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 48 16 other signatures 2->48 10 Urgent Purchase Order.exe 7 2->10         started        process3 file4 34 C:\Users\user\AppData\Roaming\LoXsaayJO.exe, PE32 10->34 dropped 36 C:\Users\...\LoXsaayJO.exe:Zone.Identifier, ASCII 10->36 dropped 38 C:\Users\user\AppData\Local\...\tmp7D92.tmp, XML 10->38 dropped 40 C:\Users\...\Urgent Purchase Order.exe.log, ASCII 10->40 dropped 50 Writes to foreign memory regions 10->50 52 Adds a directory exclusion to Windows Defender 10->52 54 Injects a PE file into a foreign processes 10->54 14 RegSvcs.exe 10->14         started        17 powershell.exe 23 10->17         started        19 schtasks.exe 1 10->19         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 2 other signatures 14->64 21 explorer.exe 14->21 injected 23 conhost.exe 17->23         started        25 conhost.exe 19->25         started        process8 process9 27 rundll32.exe 21->27         started        signatures10 56 Tries to detect virtualization through RDTSC time measurements 27->56 30 cmd.exe 1 27->30         started        process11 process12 32 conhost.exe 30->32         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-04-13 01:14:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:o27a rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Gathers network information
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
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
Unpacked files
SH256 hash:
b4364bba1d1c0f9cd4f07899b646ab90c1fcee31a985cea8377960da1692903a
MD5 hash:
42d633e43e81a4b3b1e7c3e61a2bbcb4
SHA1 hash:
9e459eedfcd7d56b3917372066a55279e35a60fc
SH256 hash:
55532dc907327048478fa719294ebe368b212a11c446667c909984f1c43c5522
MD5 hash:
c1d679ca6b9edf5a26d6bec999d11263
SHA1 hash:
84f485d3f9a38535a85bc661a4ca842ffa69091a
SH256 hash:
198646894faad5a350328c0f23b7193066c17bd03b0fc503499b27a1747ddce1
MD5 hash:
0ad67228505e037634cc4773d0605095
SHA1 hash:
0fbf1fb9001117999613f6e009a1e8e416b0b05e
SH256 hash:
35ef7f464caa7cc3d93a0bd692aa8892284a56b098ae94ec9a70c2e876091b88
MD5 hash:
30705fdccd044ab5e1725b57b89ac5ef
SHA1 hash:
e2ca5816f42de51b92f857af643c73b80bdf0f68
Malware family:
FormBook
Verdict:
Malicious
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.

Comments