MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 20659b099cc1d86c4940a9226fca2a9d57130b0e50120c97e5bb440e79216d35. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments

SHA256 hash: 20659b099cc1d86c4940a9226fca2a9d57130b0e50120c97e5bb440e79216d35
SHA3-384 hash: 586b3b2e727280e28928fe5dffa3533b2e8843f37742ef97988540237bc61dd423d291a0abdc3df78c0ee4d98cd692e4
SHA1 hash: c4843c4b38e33297500fa426e322579b5e977991
MD5 hash: 7891b57cc44533d5576c0acabad76be9
humanhash: emma-mockingbird-neptune-berlin
File name:108722FTTOO17_PDF.exe
Download: download sample
Signature Formbook
File size:245'661 bytes
First seen:2022-10-26 19:53:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 29b61e5a552b3a9bc00953de1c93be41 (174 x Formbook, 82 x AgentTesla, 81 x Loki)
ssdeep 6144:PweEUNBc2tFQIq1nRn3GIo0bHtjsswPuwv3MJfKKq:zKRn3GIoejaP3FJ
TLSH T11F34015365DCE0E3E14248F80E357A7BF7AA92A520642D572F940E4E2632643F933DDE
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e2ceaeaeb2968eaa (11 x Formbook, 5 x AgentTesla, 5 x AveMariaRAT)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
256
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
108722FTTOO17_PDF.exe
Verdict:
Malicious activity
Analysis date:
2022-10-26 19:53:48 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
Searching for the window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
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.spyw.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
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 domain / URL
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 731407 Sample: 108722FTTOO17_PDF.exe Startdate: 26/10/2022 Architecture: WINDOWS Score: 100 30 www.rcquad.com 2->30 46 Multi AV Scanner detection for domain / URL 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->50 52 5 other signatures 2->52 10 108722FTTOO17_PDF.exe 18 2->10         started        signatures3 process4 file5 28 C:\Users\user\AppData\Local\...\qekuuyx.exe, PE32 10->28 dropped 13 qekuuyx.exe 1 10->13         started        process6 signatures7 64 Multi AV Scanner detection for dropped file 13->64 66 Machine Learning detection for dropped file 13->66 68 Maps a DLL or memory area into another process 13->68 16 qekuuyx.exe 13->16         started        19 conhost.exe 13->19         started        process8 signatures9 38 Modifies the context of a thread in another process (thread injection) 16->38 40 Maps a DLL or memory area into another process 16->40 42 Sample uses process hollowing technique 16->42 44 Queues an APC in another process (thread injection) 16->44 21 explorer.exe 16->21 injected process10 dnsIp11 32 td-ccm-168-233.wixdns.net 34.117.168.233, 49718, 80 GOOGLE-AS-APGoogleAsiaPacificPteLtdSG United States 21->32 34 www.toptierfinancials.net 21->34 36 2 other IPs or domains 21->36 54 System process connects to network (likely due to code injection or exploit) 21->54 25 systray.exe 13 21->25         started        signatures12 process13 signatures14 56 Tries to steal Mail credentials (via file / registry access) 25->56 58 Tries to harvest and steal browser information (history, passwords, etc) 25->58 60 Modifies the context of a thread in another process (thread injection) 25->60 62 Maps a DLL or memory area into another process 25->62
Threat name:
Win32.Trojan.LokiBot
Status:
Malicious
First seen:
2022-10-25 08:58:44 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
27 of 40 (67.50%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:axe3 rat spyware stealer trojan
Behaviour
Enumerates system info in registry
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Formbook
Unpacked files
SH256 hash:
de11a456c948ba4282c7add9fb49e2a9ecc30dd91594298c63472b795c120d8b
MD5 hash:
57d646cb8f88dc43e80bef7392c6d1d5
SHA1 hash:
c0072144218ce3cd497c5c7515c3eabd8837b703
SH256 hash:
9b380f5fbd476711412378968dea48caa3bc557b617c1305aa2318d1d6ea56b9
MD5 hash:
ff83147c15b5644ad4b08864802150fc
SHA1 hash:
961cfa26ab7f68db793e81b724d3ace43fd1fc56
SH256 hash:
20659b099cc1d86c4940a9226fca2a9d57130b0e50120c97e5bb440e79216d35
MD5 hash:
7891b57cc44533d5576c0acabad76be9
SHA1 hash:
c4843c4b38e33297500fa426e322579b5e977991
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:crime_win32_ransom_avaddon_1
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:meth_get_eip
Author:Willi Ballenthin

File information


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

Malspam

Formbook

Executable exe 20659b099cc1d86c4940a9226fca2a9d57130b0e50120c97e5bb440e79216d35

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

Comments