MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 844c38ede4612f64cbadfe80242473431b3eb4d15e65754a4736e4560b302716. 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 4 File information Comments

SHA256 hash: 844c38ede4612f64cbadfe80242473431b3eb4d15e65754a4736e4560b302716
SHA3-384 hash: acdbba3dbe311fa9cb348989bc26f653a7fd5ae08a8a34974e6f9d1238a2fb76d16e9afaa6b8c22e494243aeb09f9507
SHA1 hash: 09ec5e8e30e5177cf31c0986e72d605b23482b3b
MD5 hash: fe0e613572f0be1ac3d30495a5bbe475
humanhash: stairway-cola-fillet-sixteen
File name:t.bin
Download: download sample
Signature Formbook
File size:176'128 bytes
First seen:2022-08-11 09:44:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 3072:VB+D/4I9yCyWJeTWIQ2nhx5+e8BG3q/0qLCrMcrfLvgNy:VryyCnJe42n78DBkq/0oxcTzM
TLSH T1EA049E36E601C070E2B241F5B66D1BBB883E1D353259A0AAF3E11AD46EF45E5B52C31F
Reporter JAMESWT_WT
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
439
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
t.exe
Verdict:
Malicious activity
Analysis date:
2022-08-10 14:22:49 UTC
Tags:
formbook opendir

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

Behaviour
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Creating a window
Searching for the window
Launching a service
DNS request
Creating a file in the Program Files subdirectories
Sending an HTTP GET request
Unauthorized injection to a recently created process
Launching a process
Reading critical registry keys
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed virus windows
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.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 682346 Sample: t.bin Startdate: 11/08/2022 Architecture: WINDOWS Score: 100 18 www.vymenanemovitosti.store 2->18 20 vymenanemovitosti.store 2->20 28 Snort IDS alert for network traffic 2->28 30 Malicious sample detected (through community Yara rule) 2->30 32 Antivirus detection for URL or domain 2->32 34 5 other signatures 2->34 8 t.exe 2->8         started        signatures3 process4 signatures5 36 Modifies the context of a thread in another process (thread injection) 8->36 38 Maps a DLL or memory area into another process 8->38 40 Sample uses process hollowing technique 8->40 42 Queues an APC in another process (thread injection) 8->42 11 explorer.exe 8->11 injected process6 dnsIp7 22 senhordasvariedades.com 108.179.253.244, 49775, 80 UNIFIEDLAYER-AS-1US United States 11->22 24 utahboxing.org 162.144.15.236, 49800, 49802, 80 UNIFIEDLAYER-AS-1US United States 11->24 26 28 other IPs or domains 11->26 44 System process connects to network (likely due to code injection or exploit) 11->44 46 Performs DNS queries to domains with low reputation 11->46 15 rundll32.exe 13 11->15         started        signatures8 process9 signatures10 48 Tries to steal Mail credentials (via file / registry access) 15->48 50 Tries to harvest and steal browser information (history, passwords, etc) 15->50 52 Modifies the context of a thread in another process (thread injection) 15->52 54 Maps a DLL or memory area into another process 15->54
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2022-08-11 09:45:06 UTC
File Type:
PE (Exe)
AV detection:
34 of 40 (85.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Modifies Internet Explorer settings
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
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
844c38ede4612f64cbadfe80242473431b3eb4d15e65754a4736e4560b302716
MD5 hash:
fe0e613572f0be1ac3d30495a5bbe475
SHA1 hash:
09ec5e8e30e5177cf31c0986e72d605b23482b3b
Detections:
win_formbook_g0 win_formbook_auto
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:malware_Formbook_strings
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information


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

Comments