MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ad462fa16da22c62cdfef4583b8ac8c131870c3a2b5d7a46e72f4ac839d659ea. 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 3 File information Comments

SHA256 hash: ad462fa16da22c62cdfef4583b8ac8c131870c3a2b5d7a46e72f4ac839d659ea
SHA3-384 hash: 3606cd6e56ffcf621215d6a4b93194aacc224429fc34447eeb9b7a94340d78bd4c9c1ca2908e1392788234d31e1c37db
SHA1 hash: dd97911f5beeef03568b9061e7a2db295d3d4f7e
MD5 hash: 2248384fea96f732f0f001626643467c
humanhash: two-coffee-skylark-black
File name:RFQ-31-08-2022-Doc.pdf.exe
Download: download sample
Signature Formbook
File size:1'140'224 bytes
First seen:2022-09-06 13:57:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:hHe641hw4e/ehLrzNTpHw0g5Uc2xDFmccFBuK33yy96kOSOI2WBaSCx2p/1hw4e/:XL4LJxe95UN1F2BuK33y9jgnp84
TLSH T13B355D0B21D409A5C87251FCA4CCC1734BAA9E45E537C949BFCA9CAFF592F2C42D27A1
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 10d2c4f0f2d2b030 (10 x Loki, 8 x AgentTesla, 7 x Formbook)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
345
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
RFQ-31-08-2022-Doc.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-09-06 13:59:30 UTC
Tags:
formbook trojan stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
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
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
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
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 698238 Sample: RFQ-31-08-2022-Doc.pdf.exe Startdate: 06/09/2022 Architecture: WINDOWS Score: 100 41 www.rishikaraka.com 2->41 43 www.baytwitch.info 2->43 45 baytwitch.info 2->45 47 Snort IDS alert for network traffic 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for dropped file 2->51 53 9 other signatures 2->53 11 RFQ-31-08-2022-Doc.pdf.exe 7 2->11         started        signatures3 process4 file5 35 C:\Users\user\AppData\Roaming\gJPDRzXaN.exe, PE32 11->35 dropped 37 C:\Users\user\AppData\Local\...\tmp35FB.tmp, XML 11->37 dropped 39 C:\Users\...\RFQ-31-08-2022-Doc.pdf.exe.log, ASCII 11->39 dropped 55 Uses schtasks.exe or at.exe to add and modify task schedules 11->55 57 Writes to foreign memory regions 11->57 59 Adds a directory exclusion to Windows Defender 11->59 61 Injects a PE file into a foreign processes 11->61 15 RegSvcs.exe 11->15         started        18 powershell.exe 22 11->18         started        20 schtasks.exe 1 11->20         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 15->69 71 Maps a DLL or memory area into another process 15->71 73 Sample uses process hollowing technique 15->73 75 2 other signatures 15->75 22 explorer.exe 15->22 injected 24 conhost.exe 18->24         started        26 conhost.exe 20->26         started        process9 process10 28 cscript.exe 22->28         started        signatures11 63 Modifies the context of a thread in another process (thread injection) 28->63 65 Maps a DLL or memory area into another process 28->65 67 Tries to detect virtualization through RDTSC time measurements 28->67 31 cmd.exe 1 28->31         started        process12 process13 33 conhost.exe 31->33         started       
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-09-06 02:42:35 UTC
AV detection:
20 of 40 (50.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:sg94 rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
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
Blocklisted process makes network request
Formbook payload
Formbook
Unpacked files
SH256 hash:
8b533ffaed24e0351e489b14aaac6960b731db189ce7ed0c0c02d4a546af8e63
MD5 hash:
dbc7be56e6e32349315170599c8b333f
SHA1 hash:
d8e5840e3574b87d435e55a65ac648e040871aee
SH256 hash:
e66cc660c1641797454f6ec3fd87aa8c051bd7f76b97c989954815cf5915df73
MD5 hash:
535020c7586e2bc55f854f6b8284a7cf
SHA1 hash:
9061f91062b7d4faa51148fd796150795b4b6c42
SH256 hash:
bfb2befcb5fb867c86d46541a18175bb223fa82570afe0805a3cdcdfe19509e7
MD5 hash:
283c6f784f8029a860feb457b27f88c4
SHA1 hash:
763fb05af30629a3aae3571eeae9110da3a6fbb7
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
SH256 hash:
ad462fa16da22c62cdfef4583b8ac8c131870c3a2b5d7a46e72f4ac839d659ea
MD5 hash:
2248384fea96f732f0f001626643467c
SHA1 hash:
dd97911f5beeef03568b9061e7a2db295d3d4f7e
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:BitcoinAddress
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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.

  
Delivery method
Other

Comments