MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7d41c471d4c5893ee0dd1c50cb44d7215e6b9cb5a693a587a0d33d894dea13d7. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments

SHA256 hash: 7d41c471d4c5893ee0dd1c50cb44d7215e6b9cb5a693a587a0d33d894dea13d7
SHA3-384 hash: 9f11f639c2ead357b5556b4ee7ede967229551f49d842050068ce207a1652c9a26876e86b4ac5061f7650f42dfb38d88
SHA1 hash: 16765e34b7f6f03f355189014ae074a52d4f1d63
MD5 hash: 85ccb593ad2d2422b53bd7f6cc9ceefa
humanhash: dakota-arizona-asparagus-one
File name:PDF.0342552772901.exe
Download: download sample
Signature FormBook
File size:1'051'136 bytes
First seen:2022-08-30 07:51:24 UTC
Last seen:2022-08-31 06:53:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 45e97a00ecbd587477169510db95872b (5 x RemcosRAT, 3 x ModiLoader, 2 x FormBook)
ssdeep 24576:DJLADyaLg23PYHKiMtkku4nzSrmdN40JIyE9WDvk:DJEDfg23w4tkku4nzSrmdmWbaW
TLSH T1FB25BFF6B3D58A33C0631978CE2B53589D29BE101E24988A2BF52E4CCF34791793D697
TrID 65.6% (.EXE) Win32 Executable Borland Delphi 7 (664796/42/58)
25.9% (.EXE) Win32 Executable Borland Delphi 6 (262638/61)
4.2% (.EXE) InstallShield setup (43053/19/16)
1.3% (.EXE) Win32 Executable Delphi generic (14182/79/4)
1.2% (.SCR) Windows screen saver (13101/52/3)
File icon (PE):PE icon
dhash icon eef2eed69696eabe (10 x RemcosRAT, 8 x ModiLoader, 6 x Formbook)
Reporter TeamDreier
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
282
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PDF.0342552772901.exe
Verdict:
Suspicious activity
Analysis date:
2022-08-30 07:52:25 UTC
Tags:
installer

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
Сreating synchronization primitives
Creating a window
DNS request
Sending a custom TCP request
Creating a file
Launching a process
Creating a process with a hidden window
Searching for synchronization primitives
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Launching cmd.exe command interpreter
Creating a file in the %temp% directory
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
greyware keylogger overlay
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.
Malware family:
Generic Malware
Verdict:
Malicious
Result
Threat name:
DBatLoader, FormBook
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Contains functionality to inject code into remote processes
Creates a thread in another existing process (thread injection)
Injects a PE file into a foreign processes
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
Queues an APC in another process (thread injection)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected DBatLoader
Yara detected FormBook
Yara detected UAC Bypass using ComputerDefaults
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 692831 Sample: PDF.0342552772901.exe Startdate: 30/08/2022 Architecture: WINDOWS Score: 100 50 Malicious sample detected (through community Yara rule) 2->50 52 Yara detected UAC Bypass using ComputerDefaults 2->52 54 Yara detected DBatLoader 2->54 56 2 other signatures 2->56 9 PDF.0342552772901.exe 1 18 2->9         started        process3 dnsIp4 44 qmz45w.ph.files.1drv.com 9->44 46 ph-files.fe.1drv.com 9->46 48 onedrive.live.com 9->48 28 C:\Users\Public\Libraries\Thkrmoqpy.exe, PE32 9->28 dropped 60 Contains functionality to inject code into remote processes 9->60 62 Writes to foreign memory regions 9->62 64 Allocates memory in foreign processes 9->64 66 2 other signatures 9->66 14 iexpress.exe 9->14         started        file5 signatures6 process7 signatures8 68 Modifies the context of a thread in another process (thread injection) 14->68 70 Maps a DLL or memory area into another process 14->70 72 Tries to detect virtualization through RDTSC time measurements 14->72 74 Queues an APC in another process (thread injection) 14->74 17 explorer.exe 14->17 injected process9 dnsIp10 30 192.168.2.1 unknown unknown 17->30 20 Thkrmoqpy.exe 15 17->20         started        24 Thkrmoqpy.exe 15 17->24         started        process11 dnsIp12 32 l-0004.l-dc-msedge.net 13.107.43.13, 443, 49738, 49740 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 20->32 34 qmz45w.ph.files.1drv.com 20->34 42 2 other IPs or domains 20->42 58 Multi AV Scanner detection for dropped file 20->58 26 iexpress.exe 20->26         started        36 qmz45w.ph.files.1drv.com 24->36 38 ph-files.fe.1drv.com 24->38 40 onedrive.live.com 24->40 signatures13 process14
Threat name:
Win32.Trojan.Zusy
Status:
Malicious
First seen:
2022-08-30 07:52:14 UTC
File Type:
PE (Exe)
Extracted files:
91
AV detection:
9 of 40 (22.50%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
modiloader
Score:
  10/10
Tags:
family:formbook family:modiloader campaign:3nop persistence rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Reads user/profile data of web browsers
Formbook payload
ModiLoader Second Stage
Formbook
ModiLoader, DBatLoader
Unpacked files
SH256 hash:
7d41c471d4c5893ee0dd1c50cb44d7215e6b9cb5a693a587a0d33d894dea13d7
MD5 hash:
85ccb593ad2d2422b53bd7f6cc9ceefa
SHA1 hash:
16765e34b7f6f03f355189014ae074a52d4f1d63
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.

Malspam

FormBook

Executable exe 7d41c471d4c5893ee0dd1c50cb44d7215e6b9cb5a693a587a0d33d894dea13d7

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments