MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de49a5cfff0d5447c11dd55ff9ff4c28b4b0b8374e29746bfc273f06211674a0. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments

SHA256 hash: de49a5cfff0d5447c11dd55ff9ff4c28b4b0b8374e29746bfc273f06211674a0
SHA3-384 hash: 9209efdeb62a4422ac9693c6c776bc95816860dc858c15f25c7cce2ba53bd2ace75e4347a81878851c91a06b8c081528
SHA1 hash: e0892b7a41003207a7637b22c8de176b9fa7f106
MD5 hash: e0bfe860732c6305704dad8e4bbe6d5b
humanhash: burger-don-whiskey-alabama
File name:SecuriteInfo.com.Trojan0056a1fe1.21948.32518
Download: download sample
Signature Formbook
File size:395'296 bytes
First seen:2022-07-08 09:55:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:WKhr3TgkRY0h8WzucGvyyAgWJRuHFAYsVkwBX6rIV9n:WKxpY036cG6yEwKLVkwBX6rIV9n
TLSH T1F0844A8BB64C778EC617C971B9741D34AA10AF7753168603B0C3EEAD896C58FAF141E2
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 6ccccc9cc4d8e8f4 (41 x Formbook, 34 x AgentTesla, 3 x AveMariaRAT)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
260
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated overlay packed virus wacatac
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected potential unwanted application
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 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
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 detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 659606 Sample: SecuriteInfo.com.Trojan0056... Startdate: 08/07/2022 Architecture: WINDOWS Score: 100 31 www.wangmixiu.top 2->31 39 Snort IDS alert for network traffic 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for URL or domain 2->43 45 7 other signatures 2->45 11 SecuriteInfo.com.Trojan0056a1fe1.21948.exe 1 2->11         started        signatures3 process4 file5 29 SecuriteInfo.com.T...a1fe1.21948.exe.log, ASCII 11->29 dropped 55 Writes to foreign memory regions 11->55 57 Allocates memory in foreign processes 11->57 59 Injects a PE file into a foreign processes 11->59 61 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->61 15 cvtres.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 2 other signatures 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.wangmixiu.top 198.13.49.100, 80 AS-CHOOPAUS United States 18->33 35 www.usedvwspecials.com 18->35 37 7 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 mstsc.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2022-07-08 06:09:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:formbook family:xloader campaign:r8f2 loader persistence rat spyware stealer suricata trojan
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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Xloader payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
ea8efcf6bca3d9bb63dcf94e73768612ccf975f03f8fb912c385a7adca32f864
MD5 hash:
2a9cd15b435b78cd08189b5ad93ec542
SHA1 hash:
62dd8a1a0ec5690143859ebe10bb9aeb7bbc9243
SH256 hash:
7d39c7d7596e890ac15c3790d57c30209ac094d5108e101f6ec37e6e82d72d1b
MD5 hash:
2c15c4318e3f587c837bbffd024f750a
SHA1 hash:
31370cfd7220175782b21c63b744f0abb6ab7881
SH256 hash:
de49a5cfff0d5447c11dd55ff9ff4c28b4b0b8374e29746bfc273f06211674a0
MD5 hash:
e0bfe860732c6305704dad8e4bbe6d5b
SHA1 hash:
e0892b7a41003207a7637b22c8de176b9fa7f106
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_EXE_Packed_ConfuserEx
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Comments