MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 90ad6513f15431b371ad01a94be9fa918662bd3ae7cdaf82db60859c796f24af. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments

SHA256 hash: 90ad6513f15431b371ad01a94be9fa918662bd3ae7cdaf82db60859c796f24af
SHA3-384 hash: 82f655a43558238fba608a4afd99094319729204f1de8cc7d61896d4fdac475b8ad327b0b781125a1324e0ba5bc177ef
SHA1 hash: 91f39fde59f6ecec3b8b4c14098bb87911daadec
MD5 hash: 5bd4872b079359996e82b866dbe33a0f
humanhash: juliet-rugby-indigo-enemy
File name:67809321.exe
Download: download sample
Signature Formbook
File size:233'472 bytes
First seen:2022-03-18 12:59:51 UTC
Last seen:2022-03-18 16:04:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 1536:pzXieg9sd2GqiWw4Rc89jkuV+uoVoA/U5v9eUXT/zPLXpqtqEIdzS4svj7WzEJbx:pzX49XQCxh0VqBoU3LAztsgN
TLSH T1C334F9D2F11046EDED6A1736A4174C9209932CBEE6B5D15C70FE32236BF72A3401AA5F
File icon (PE):PE icon
dhash icon 068f0b2a2b363f06 (19 x SnakeKeylogger, 8 x AgentTesla, 8 x MassLogger)
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
4
# of downloads :
252
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
DNS request
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bladabindi njrat 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
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected FormBook
Yara detected MSILDownloaderGeneric
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 591994 Sample: 67809321.exe Startdate: 18/03/2022 Architecture: WINDOWS Score: 100 82 Multi AV Scanner detection for domain / URL 2->82 84 Found malware configuration 2->84 86 Malicious sample detected (through community Yara rule) 2->86 88 9 other signatures 2->88 10 67809321.exe 16 7 2->10         started        process3 dnsIp4 76 cdn.discordapp.com 162.159.133.233, 443, 49775, 49793 CLOUDFLARENETUS United States 10->76 64 C:\Users\user\AppData\Roaming\...\Saoic.exe, PE32 10->64 dropped 66 C:\Users\user\...\Saoic.exe:Zone.Identifier, ASCII 10->66 dropped 68 C:\Users\user\AppData\...\67809321.exe.log, ASCII 10->68 dropped 90 Writes to foreign memory regions 10->90 92 Allocates memory in foreign processes 10->92 94 Injects a PE file into a foreign processes 10->94 15 MSBuild.exe 10->15         started        18 cmd.exe 1 10->18         started        20 cmd.exe 1 10->20         started        file5 signatures6 process7 signatures8 96 Modifies the context of a thread in another process (thread injection) 15->96 98 Maps a DLL or memory area into another process 15->98 100 Tries to detect virtualization through RDTSC time measurements 15->100 102 Queues an APC in another process (thread injection) 15->102 22 explorer.exe 15->22 injected 24 conhost.exe 18->24         started        26 timeout.exe 1 18->26         started        28 conhost.exe 20->28         started        30 timeout.exe 1 20->30         started        process9 process10 32 Saoic.exe 14 3 22->32         started        36 Saoic.exe 3 22->36         started        dnsIp11 70 cdn.discordapp.com 32->70 78 Multi AV Scanner detection for dropped file 32->78 80 Machine Learning detection for dropped file 32->80 38 cmd.exe 1 32->38         started        40 cmd.exe 32->40         started        42 MSBuild.exe 32->42         started        72 162.159.129.233, 443, 49794 CLOUDFLARENETUS United States 36->72 74 cdn.discordapp.com 36->74 44 cmd.exe 36->44         started        46 cmd.exe 36->46         started        signatures12 process13 process14 48 conhost.exe 38->48         started        50 timeout.exe 1 38->50         started        52 conhost.exe 40->52         started        54 timeout.exe 40->54         started        56 conhost.exe 44->56         started        58 timeout.exe 44->58         started        60 conhost.exe 46->60         started        62 timeout.exe 46->62         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-03-18 13:00:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
23 of 27 (85.19%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:s9m1 loader persistence rat
Behaviour
Delays execution with timeout.exe
Gathers network information
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
Adds Run key to start application
Checks computer location settings
Xloader Payload
Xloader
Unpacked files
SH256 hash:
90ad6513f15431b371ad01a94be9fa918662bd3ae7cdaf82db60859c796f24af
MD5 hash:
5bd4872b079359996e82b866dbe33a0f
SHA1 hash:
91f39fde59f6ecec3b8b4c14098bb87911daadec
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:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information


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

Malspam

Formbook

Executable exe 90ad6513f15431b371ad01a94be9fa918662bd3ae7cdaf82db60859c796f24af

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments