MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f34fd6bbeea3da4838e068cb7aa4f867b3d4d8c435dcc8926895d1c033bd7622. 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: 17


Intelligence 17 IOCs YARA 11 File information Comments

SHA256 hash: f34fd6bbeea3da4838e068cb7aa4f867b3d4d8c435dcc8926895d1c033bd7622
SHA3-384 hash: 5a19181330081718b8e9a0f0558b14d83112599fd084832549bc88b2af33b911b6dc57dd26e127ef0963532cf56c6076
SHA1 hash: f71deba6bfa3528fe7335f6dfffb4d718ef92719
MD5 hash: b8b1911c8a65275c0aeaa0e9340f95cd
humanhash: autumn-edward-six-early
File name:b8b1911c8a65275c0aeaa0e9340f95cd.exe
Download: download sample
Signature Formbook
File size:344'601 bytes
First seen:2023-10-02 17:58:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9dda1a1d1f8a1d13ae0297b47046b26e (64 x Formbook, 39 x GuLoader, 22 x RemcosRAT)
ssdeep 6144:BnPdudwDsf8FteRT4g71BdUcTCdDQgqGIxVGo+gXIuOOtaSrxXf0b3N0CAYGwsxo:BnPdwfPTtPdFTXEgYu/FPOfGDxo
Threatray 2'030 similar samples on MalwareBazaar
TLSH T1807423767BA5D0FBFD1663355C776BA36A3D082202E4D61B0B009A50FF21FA2E24D674
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 b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
272
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
PO#372842-2023.xls
Verdict:
Malicious activity
Analysis date:
2023-10-02 11:02:52 UTC
Tags:
exploit cve-2017-11882 opendir loader formbook xloader

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

Behaviour
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
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
Gathering data
Verdict:
Likely Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed remcos shell32 threat virus
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, NSISDropper
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
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
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1318198 Sample: Ossi4Owf4L.exe Startdate: 02/10/2023 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 8 other signatures 2->53 11 Ossi4Owf4L.exe 18 2->11         started        process3 file4 31 C:\Users\user\AppData\...\wesamingph.exe, PE32 11->31 dropped 14 wesamingph.exe 11->14         started        process5 signatures6 63 Multi AV Scanner detection for dropped file 14->63 65 Maps a DLL or memory area into another process 14->65 67 Tries to detect virtualization through RDTSC time measurements 14->67 17 wesamingph.exe 14->17         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 20 explorer.exe 3 1 17->20 injected process9 dnsIp10 33 sarthaksrishticreation.com 119.18.49.69, 49737, 80 PUBLIC-DOMAIN-REGISTRYUS India 20->33 35 www.apneabirmingham.info 109.68.33.25, 49728, 80 GD-EMEA-DC-LD5GB United Kingdom 20->35 37 18 other IPs or domains 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 24 systray.exe 20->24         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2023-10-02 12:35:20 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:sy22 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
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:
7953ff7825dbd216728348d35c247f1b4d8361d786444d07fda762bbbeb24829
MD5 hash:
8ae089a7174c8a5a2179779c65e04f8b
SHA1 hash:
648ecc906f09620a83c52f516f9054b13ed34940
SH256 hash:
f34fd6bbeea3da4838e068cb7aa4f867b3d4d8c435dcc8926895d1c033bd7622
MD5 hash:
b8b1911c8a65275c0aeaa0e9340f95cd
SHA1 hash:
f71deba6bfa3528fe7335f6dfffb4d718ef92719
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:DebuggerCheck__GlobalFlags
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants

File information


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

Web download

Formbook

Executable exe f34fd6bbeea3da4838e068cb7aa4f867b3d4d8c435dcc8926895d1c033bd7622

(this sample)

  
Delivery method
Distributed via web download

Comments