MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a5125b535a9d3aec7608c040173cea1e3c12cb855ec5bad90847406022dfe98. 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 2 File information Comments 1

SHA256 hash: 3a5125b535a9d3aec7608c040173cea1e3c12cb855ec5bad90847406022dfe98
SHA3-384 hash: 829becc6bc04496fce6cebd6d3b86980006923f398b485f737bfa863c7c1162bbf601475d7debfb4df8f69b8a6381766
SHA1 hash: 2e7785e7e9b2b2b17806effe6e239336bd160e43
MD5 hash: 4c002a2107b1514b4aa7b0d0bb9bb9a6
humanhash: bravo-delta-wolfram-dakota
File name:4c002a2107b1514b4aa7b0d0bb9bb9a6
Download: download sample
Signature Formbook
File size:312'431 bytes
First seen:2023-03-01 18:58:48 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:AYa6nZKxMaaQIp2RMAdYmJcT0Ps+cD7VPiTFluKp8fkyn8Z2MGQ/m:AYNZKxMXQIpxAumqDdPiTF18f98EQ/m
Threatray 2'384 similar samples on MalwareBazaar
TLSH T15464F11572A0C927C8A657311D79EBFF13A4BC124DA0A60B33D43F8FBD726929C1A752
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 e0aaaa2b0303aad0 (34 x Formbook, 21 x AveMariaRAT, 18 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
214
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
JAWAPOWER RFQ-2680.doc
Verdict:
Malicious activity
Analysis date:
2023-03-01 13:25:07 UTC
Tags:
exploit cve-2017-11882 loader formbook xloader trojan 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
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
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.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 818000 Sample: g8G146l8XU.exe Startdate: 01/03/2023 Architecture: WINDOWS Score: 100 34 www.bienspage.com 2->34 36 bienspage.com 2->36 52 Malicious sample detected (through community Yara rule) 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 Yara detected FormBook 2->56 58 2 other signatures 2->58 12 g8G146l8XU.exe 19 2->12         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\mmtnmwz.exe, PE32 12->32 dropped 15 mmtnmwz.exe 12->15         started        process6 signatures7 66 Multi AV Scanner detection for dropped file 15->66 68 Maps a DLL or memory area into another process 15->68 70 Tries to detect virtualization through RDTSC time measurements 15->70 18 mmtnmwz.exe 15->18         started        process8 signatures9 44 Modifies the context of a thread in another process (thread injection) 18->44 46 Maps a DLL or memory area into another process 18->46 48 Sample uses process hollowing technique 18->48 50 Queues an APC in another process (thread injection) 18->50 21 explorer.exe 6 6 18->21 injected process10 dnsIp11 38 www.frostdal.se 194.9.94.86, 49705, 80 LOOPIASE Sweden 21->38 40 i-3-test.com 192.0.78.24, 49704, 80 AUTOMATTICUS United States 21->40 42 2 other IPs or domains 21->42 60 System process connects to network (likely due to code injection or exploit) 21->60 25 msiexec.exe 21->25         started        signatures12 process13 signatures14 62 Modifies the context of a thread in another process (thread injection) 25->62 64 Maps a DLL or memory area into another process 25->64 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2023-03-01 17:45:50 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
22 of 25 (88.00%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:s26y rat spyware stealer trojan
Behaviour
Gathers network information
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
8d02d5a3c863c8dfbe070fc918113daff98b422d6b01a730fd4dbff6a31d1512
MD5 hash:
040972be1f870429b05aabf7072e3d60
SHA1 hash:
fe04bda2e1f0ede3658a03bd869f65007912c80c
SH256 hash:
3a5125b535a9d3aec7608c040173cea1e3c12cb855ec5bad90847406022dfe98
MD5 hash:
4c002a2107b1514b4aa7b0d0bb9bb9a6
SHA1 hash:
2e7785e7e9b2b2b17806effe6e239336bd160e43
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:meth_get_eip
Author:Willi Ballenthin
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns

File information


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

Web download

Formbook

Executable exe 3a5125b535a9d3aec7608c040173cea1e3c12cb855ec5bad90847406022dfe98

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2023-03-01 18:58:49 UTC

url : hxxp://kerasiastudios.gr/intershev2.4.exe