MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7e21aace8640cb7fcbbb786e75894a39782358e487eed60681c0f2502193a496. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments

SHA256 hash: 7e21aace8640cb7fcbbb786e75894a39782358e487eed60681c0f2502193a496
SHA3-384 hash: 94266ccb051eab7eadf7e57e300577c333cd323fec37a0c6982722ac6a24fbcc8560786405bcf0ea3c875384f1ccd00f
SHA1 hash: caf50f26b645680c89e6759f5c21d4a6462dc441
MD5 hash: 071e43b1aaa513649950aaf642c21bfb
humanhash: floor-utah-hot-india
File name:071e43b1aaa513649950aaf642c21bfb.exe
Download: download sample
Signature FormBook
File size:700'928 bytes
First seen:2022-06-22 07:38:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ade92919210a2bc2545102b42a066c5f (2 x DBatLoader, 2 x FormBook, 1 x RemcosRAT)
ssdeep 12288:MbFXyclCn/WCkH2YVTlm/RZ/amWZyCFlVkmLYroyINIcSwudLI:CJ9Cn/lkWYJM/fa3ZF3vp/y
TLSH T16AE4B0A5F6D14437D1DB153A8D1FA6A85C2BBF102D28580B6BED7D8C7E37681382D0A3
TrID 22.3% (.EXE) Win32 Executable Delphi generic (14182/79/4)
20.6% (.SCR) Windows screen saver (13101/52/3)
16.5% (.EXE) Win64 Executable (generic) (10523/12/4)
15.7% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2)
7.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e0c4a2a2a4acbcd8 (11 x Formbook, 7 x SnakeKeylogger, 6 x RemcosRAT)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
236
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
DNS request
Sending a custom TCP request
Creating a file
Launching a process
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Launching cmd.exe command interpreter
Creating a file in the %temp% directory
Searching for synchronization primitives
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Behaviour
MalwareBazaar
CheckScreenResolution
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit keylogger packed
Result
Verdict:
UNKNOWN
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, DBatLoader
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates a thread in another existing process (thread injection)
Detected FormBook malware
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
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses netsh to modify the Windows network and firewall settings
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: 650225 Sample: 7bToOa2tip.exe Startdate: 22/06/2022 Architecture: WINDOWS Score: 100 77 Malicious sample detected (through community Yara rule) 2->77 79 Antivirus detection for URL or domain 2->79 81 Antivirus / Scanner detection for submitted sample 2->81 83 5 other signatures 2->83 10 7bToOa2tip.exe 1 18 2->10         started        process3 dnsIp4 61 l-0004.l-dc-msedge.net 13.107.43.13, 443, 49733, 49738 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 10->61 63 op0ppg.am.files.1drv.com 10->63 65 2 other IPs or domains 10->65 45 C:\Users\Public\Libraries\Vbtefqixbv.exe, PE32 10->45 dropped 47 C:\Users\...\Vbtefqixbv.exe:Zone.Identifier, ASCII 10->47 dropped 109 Writes to foreign memory regions 10->109 111 Allocates memory in foreign processes 10->111 113 Creates a thread in another existing process (thread injection) 10->113 115 Injects a PE file into a foreign processes 10->115 15 logagent.exe 10->15         started        file5 signatures6 process7 signatures8 117 Modifies the context of a thread in another process (thread injection) 15->117 119 Maps a DLL or memory area into another process 15->119 121 Sample uses process hollowing technique 15->121 123 2 other signatures 15->123 18 explorer.exe 2 15->18 injected process9 signatures10 85 Uses netsh to modify the Windows network and firewall settings 18->85 21 Vbtefqixbv.exe 14 18->21         started        25 netsh.exe 18 18->25         started        28 Vbtefqixbv.exe 17 18->28         started        30 3 other processes 18->30 process11 dnsIp12 49 l-0003.l-dc-msedge.net 13.107.43.12, 443, 49787, 49799 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 21->49 51 op0ppg.am.files.1drv.com 21->51 59 3 other IPs or domains 21->59 87 Antivirus detection for dropped file 21->87 89 Multi AV Scanner detection for dropped file 21->89 91 Writes to foreign memory regions 21->91 32 logagent.exe 21->32         started        41 C:\Users\user\AppData\...\7P6logrv.ini, data 25->41 dropped 43 C:\Users\user\AppData\...\7P6logri.ini, data 25->43 dropped 93 Detected FormBook malware 25->93 95 Tries to steal Mail credentials (via file / registry access) 25->95 97 Tries to harvest and steal browser information (history, passwords, etc) 25->97 107 2 other signatures 25->107 35 cmd.exe 2 25->35         started        53 op0ppg.am.files.1drv.com 28->53 55 onedrive.live.com 28->55 57 am-files.fe.1drv.com 28->57 99 Allocates memory in foreign processes 28->99 101 Creates a thread in another existing process (thread injection) 28->101 103 Injects a PE file into a foreign processes 28->103 37 DpiScaling.exe 28->37         started        105 Tries to detect virtualization through RDTSC time measurements 30->105 file13 signatures14 process15 signatures16 67 Tries to harvest and steal browser information (history, passwords, etc) 35->67 39 conhost.exe 35->39         started        69 Modifies the context of a thread in another process (thread injection) 37->69 71 Maps a DLL or memory area into another process 37->71 73 Sample uses process hollowing technique 37->73 75 Tries to detect virtualization through RDTSC time measurements 37->75 process17
Threat name:
Win32.Infostealer.Fareit
Status:
Malicious
First seen:
2022-06-22 06:33:21 UTC
File Type:
PE (Exe)
Extracted files:
39
AV detection:
25 of 41 (60.98%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
modiloader
Score:
  10/10
Tags:
family:formbook family:modiloader campaign:ab58 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
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Formbook Payload
ModiLoader Second Stage
Formbook
ModiLoader, DBatLoader
Unpacked files
SH256 hash:
ef81dd3a8a8d74cf06d621551733a957bb5282705b39ad7be21d81793a0f3bec
MD5 hash:
a67d4b3eeec2b72b3e8a843223176821
SHA1 hash:
408379d54bb5e48bde853a986a3226b025da3acb
SH256 hash:
7e21aace8640cb7fcbbb786e75894a39782358e487eed60681c0f2502193a496
MD5 hash:
071e43b1aaa513649950aaf642c21bfb
SHA1 hash:
caf50f26b645680c89e6759f5c21d4a6462dc441
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:exploit_any_poppopret
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.

File information


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

Web download

FormBook

Executable exe 7e21aace8640cb7fcbbb786e75894a39782358e487eed60681c0f2502193a496

(this sample)

  
Delivery method
Distributed via web download

Comments