MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 44039b65db01a50864e76cf1a6e3134f4d57650a55958ae03b23380077fc25c6. 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 8 File information Comments

SHA256 hash: 44039b65db01a50864e76cf1a6e3134f4d57650a55958ae03b23380077fc25c6
SHA3-384 hash: 22e1be53b1c0e249415c9328be7795acc3aedb266c0a2f9ec49c3741841081b7756b4dd387695a322a2215809db0ff11
SHA1 hash: 11aa855fea4d32d4145791a6f97b1aa4042f1f45
MD5 hash: 8448b66412ae88990f7be33af32013e8
humanhash: solar-april-three-fix
File name:E-FCR Docs_pdf.exe
Download: download sample
Signature Formbook
File size:429'009 bytes
First seen:2023-01-30 07:48:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:YYa6vP8XKjcRaneh0/XgQYP1b6YAgmcv2+vDvcl7WlVsZ6XLkajkKeudxM1t:YY6ajc3h04zJ61g4+vNVsZu/zeuA
TLSH T1CD94E087F39D832EEEE945F2783E127045D9AF6B20605E80B5C9FF6D207245E69242D3
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 2d6d8d2722594c74 (7 x Formbook, 1 x AgentTesla)
Reporter TeamDreier
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
180
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
E-FCR Docs_pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-01-30 07:52:05 UTC
Tags:
trojan formbook 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 file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Query of malicious DNS domain
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook lokibot overlay packed shell32.dll
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 detection for URL or domain
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Initial sample is a PE file and has a suspicious name
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
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: 794079 Sample: E-FCR Docs_pdf.exe Startdate: 30/01/2023 Architecture: WINDOWS Score: 100 28 www.chiyiqian.net 2->28 44 Snort IDS alert for network traffic 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 3 other signatures 2->50 10 E-FCR Docs_pdf.exe 19 2->10         started        signatures3 process4 file5 26 C:\Users\user\AppData\...\qflnvyxqjb.exe, PE32 10->26 dropped 13 qflnvyxqjb.exe 10->13         started        process6 signatures7 62 Multi AV Scanner detection for dropped file 13->62 64 Detected unpacking (changes PE section rights) 13->64 66 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 13->66 68 Maps a DLL or memory area into another process 13->68 16 qflnvyxqjb.exe 13->16         started        process8 signatures9 36 Modifies the context of a thread in another process (thread injection) 16->36 38 Maps a DLL or memory area into another process 16->38 40 Sample uses process hollowing technique 16->40 42 Queues an APC in another process (thread injection) 16->42 19 explorer.exe 6 6 16->19 injected process10 dnsIp11 30 www.scriptmonkey.uk 213.171.195.105, 49698, 49699, 49700 ONEANDONE-ASBrauerstrasse48DE United Kingdom 19->30 32 www.wanknumbers.co.uk 192.187.111.220, 49707, 49708, 49709 NOCIXUS United States 19->32 34 9 other IPs or domains 19->34 52 System process connects to network (likely due to code injection or exploit) 19->52 23 cmstp.exe 13 19->23         started        signatures12 process13 signatures14 54 Tries to steal Mail credentials (via file / registry access) 23->54 56 Tries to harvest and steal browser information (history, passwords, etc) 23->56 58 Modifies the context of a thread in another process (thread injection) 23->58 60 Maps a DLL or memory area into another process 23->60
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2023-01-30 06:32:22 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
n/a
Score:
  8/10
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Unpacked files
SH256 hash:
bee5ec36671e00c89c23f14cdffd1ac19fbda2bc1997610533fe136e8f2e1ab6
MD5 hash:
feb9ff6c435ce268ffa0feb5546deab1
SHA1 hash:
194d637195bc7a4c812b6e2bcad10f3a4b40c967
SH256 hash:
3049da6d5b1fdf5b16c32c0c1e956700e7dc83fa2ea4c6bbc77afb49553a53c5
MD5 hash:
efb79707a8e03e6d3f888ad56551743b
SHA1 hash:
092d481b02e8fdd8415332b15231d0ff3fdd47e5
SH256 hash:
44039b65db01a50864e76cf1a6e3134f4d57650a55958ae03b23380077fc25c6
MD5 hash:
8448b66412ae88990f7be33af32013e8
SHA1 hash:
11aa855fea4d32d4145791a6f97b1aa4042f1f45
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:azov_Dropped
Author:Potatech
Description:Azov Detection
Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Author:Elastic Security
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.

Malspam

Formbook

Executable exe 44039b65db01a50864e76cf1a6e3134f4d57650a55958ae03b23380077fc25c6

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments