MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb6e51468bc31594bfd2d9fc78afad7d0a471b4bb0de96ab2b53f03d94c25051. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fb6e51468bc31594bfd2d9fc78afad7d0a471b4bb0de96ab2b53f03d94c25051
SHA3-384 hash: 2da26b5a0af55cf04250b9ad425d8d1c3e87e1f90e4759ed066e3d8b07d658fe4864ceb3ab32afcb262a2f37620b4793
SHA1 hash: 902c1d3fb5019ffd6824c028b29922f4ba5bdbba
MD5 hash: 835b9e1d5213f974446f666b4cc0a8ee
humanhash: football-freddie-foxtrot-twelve
File name:835b9e1d5213f974446f666b4cc0a8ee.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:466'844 bytes
First seen:2023-01-19 15:32:13 UTC
Last seen:2023-01-19 17:39:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:9Ya6aLGUytpjDqXI7UHbP843plAgVTF/HcHfpF9vxp4RiK7BhofwGB+S5ZC+BLJv:9Yjq/5VS4RiK7B2fwGwS5ZC8leXqHOq
TLSH T142A4D0953F7CC921F891ACB4B622949A3870F913167EFF9766A00F2926EC1F3580D197
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 ccf2e0e8e8f0ccec (1 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
175
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Bonifico List 35432.doc
Verdict:
Malicious activity
Analysis date:
2023-01-19 12:49:53 UTC
Tags:
loader exploit cve-2017-11882 formbook xloader trojan stealer
Link:
https://app.any.run/tasks/5a96b92d-2b93-477e-a8f0-61ab1aaa644b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/354621/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.24.18536.10592.UNOFFICIAL
Create hunting rule

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
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/61514/overview
Behaviour
MalwareBazaar
Verdict:
No Threat
Threat level:
  10/10
Confidence:
83%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63c9659e96add6d1cf47d5ec/reports/2dce43f2-1970-46ad-a612-6592e44cf93d/overview
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/5e7d744a-ccea-4f27-915e-9f67610576fc
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1154849
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
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 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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 787586 Sample: JIFxrWb4Qy.exe Startdate: 19/01/2023 Architecture: WINDOWS Score: 100 36 www.fcvip.club 2->36 38 fcvip.club 2->38 54 Malicious sample detected (through community Yara rule) 2->54 56 Multi AV Scanner detection for submitted file 2->56 58 Yara detected FormBook 2->58 60 2 other signatures 2->60 12 JIFxrWb4Qy.exe 19 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\...\dtuvifivqo.exe, PE32 12->34 dropped 15 dtuvifivqo.exe 1 12->15         started        process6 signatures7 70 Detected unpacking (changes PE section rights) 15->70 72 Maps a DLL or memory area into another process 15->72 74 Tries to detect virtualization through RDTSC time measurements 15->74 76 Contains functionality to detect sleep reduction / modifications 15->76 18 dtuvifivqo.exe 15->18         started        21 conhost.exe 15->21         started        process8 signatures9 46 Modifies the context of a thread in another process (thread injection) 18->46 48 Maps a DLL or memory area into another process 18->48 50 Sample uses process hollowing technique 18->50 52 Queues an APC in another process (thread injection) 18->52 23 explorer.exe 2 6 18->23 injected process10 dnsIp11 40 vip.myshopline.shop 104.17.232.29, 49701, 80 CLOUDFLARENETUS United States 23->40 42 cname.vercel-dns.com 76.76.21.142, 49700, 80 AMAZON-02US United States 23->42 44 3 other IPs or domains 23->44 62 System process connects to network (likely due to code injection or exploit) 23->62 27 cmstp.exe 23->27         started        signatures12 process13 signatures14 64 Modifies the context of a thread in another process (thread injection) 27->64 66 Maps a DLL or memory area into another process 27->66 68 Tries to detect virtualization through RDTSC time measurements 27->68 30 cmd.exe 1 27->30         started        process15 process16 32 conhost.exe 30->32         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fb6e51468bc31594bfd2d9fc78afad7d0a471b4bb0de96ab2b53f03d94c25051/
Threat name:
Win32.Trojan.Nsisx
Create hunting rule
Status:
Malicious
First seen:
2023-01-19 15:33:06 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
9 of 39 (23.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7nxfcrulymkzjp6s3h6hrl5npufeog2lwdpjnkzlkpyd3fgckbiq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:vr21 rat spyware stealer trojan
Link:
https://tria.ge/reports/230119-sy6x9sdd3y/
Behaviour
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
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Unpacked files
SH256 hash:
1ddd4f39aeb4703ae0c2e6c5a68110b45f64686f7bf3c2c2038dafad40c948d8
MD5 hash:
de4850cffbd214215e410c90eccc228a
SHA1 hash:
e5281c13f78f98a62de68063e93ffec5afda2039
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/048bfe37-59d4-4368-8585-4dd087b9a58e/
Parent samples :
f01a6178de178b128e254ae35774a5254e29dc2478cb9401ee6a179fe63f77db
fb6e51468bc31594bfd2d9fc78afad7d0a471b4bb0de96ab2b53f03d94c25051
498657673492910709e321035e4fabe392e1a297e2ae2653fcb5464279d47de0
d67bc9de761645c9aa4b5669cd355f2fecde8b4e9b22f64f327f282754742031
SH256 hash:
bc968e08ecb97d69392dc8a3a90cfccdd0629e2ab0f94dd4addb296e485b9c21
MD5 hash:
0d65b8fb11cd769376c9f7211e79424e
SHA1 hash:
0af57fe7c1bdd1f860011463785a534eb74a49cb
Link:
https://www.unpac.me/results/048bfe37-59d4-4368-8585-4dd087b9a58e/
SH256 hash:
fb6e51468bc31594bfd2d9fc78afad7d0a471b4bb0de96ab2b53f03d94c25051
MD5 hash:
835b9e1d5213f974446f666b4cc0a8ee
SHA1 hash:
902c1d3fb5019ffd6824c028b29922f4ba5bdbba
Link:
https://www.unpac.me/results/048bfe37-59d4-4368-8585-4dd087b9a58e/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fb6e51468bc3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/fb6e51468bc31594bfd2d9fc78afad7d0a471b4bb0de96ab2b53f03d94c25051

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
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Web download

Formbook

Executable exe fb6e51468bc31594bfd2d9fc78afad7d0a471b4bb0de96ab2b53f03d94c25051

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2299038/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/354621/

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