MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc3d76ed49eec628b68edd00a4eddc93a027091aad8fc59991c26b039a81e531. 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 7 File information Comments
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SHA256 hash: fc3d76ed49eec628b68edd00a4eddc93a027091aad8fc59991c26b039a81e531
SHA3-384 hash: 79e3f35d9187afea8a470740010d404270e144f1d24de294037f4d6accbc21e9c165d1bdead08783988ecc5d86593dd6
SHA1 hash: 727ef825ec3c90f2b49208ef431e67e50a9e60aa
MD5 hash: b626e48b28dc536293de54e91a461c95
humanhash: beer-twenty-vegan-white
File name:Summary.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:303'981 bytes
First seen:2023-01-30 07:49:02 UTC
Last seen:2023-07-18 18:34:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:pYa6VkILPfnaAeCBwniJ+bWzGbl37rmfz3D8ON:pYAILPfht/J+bMGF7GzZN
TLSH T1C65412053560C0A7ECD74BB22677227B57BAE6060CBAD60713D09F5EBC606929E1F723
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 f0d4ccd4d4d4ccd4 (1 x Formbook)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
195
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Summary.exe
Verdict:
Malicious activity
Analysis date:
2023-01-30 07:52:04 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/93963f4b-2c7b-43df-a108-dad5c0b1f36c

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/358140/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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/63936/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook nemesis overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63d7767b2d4f6d560e23a61a/reports/c97d44a0-05c9-45b5-9590-a3d58bca1b2b/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/09cc2502-1724-46a7-81e4-45b7116b1fab
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1161337
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 794074 Sample: Summary.exe Startdate: 30/01/2023 Architecture: WINDOWS Score: 100 50 www.acinus.online 2->50 64 Snort IDS alert for network traffic 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 Antivirus detection for URL or domain 2->68 70 5 other signatures 2->70 12 Summary.exe 19 2->12         started        signatures3 process4 file5 46 C:\Users\user\AppData\Local\Temp\vofrb.exe, PE32 12->46 dropped 15 vofrb.exe 1 2 12->15         started        process6 file7 48 C:\Users\user\AppData\Roaming\...\Summary.exe, PE32 15->48 dropped 56 Multi AV Scanner detection for dropped file 15->56 58 Detected unpacking (changes PE section rights) 15->58 60 Maps a DLL or memory area into another process 15->60 62 Tries to detect virtualization through RDTSC time measurements 15->62 19 vofrb.exe 15->19         started        signatures8 process9 signatures10 72 Modifies the context of a thread in another process (thread injection) 19->72 74 Maps a DLL or memory area into another process 19->74 76 Sample uses process hollowing technique 19->76 78 Queues an APC in another process (thread injection) 19->78 22 explorer.exe 6 2 19->22 injected process11 dnsIp12 52 www.ssmtuition.co.uk 81.17.18.194, 49711, 80 PLI-ASCH Switzerland 22->52 54 www.wingfoilkit.co.uk 35.227.197.36, 49709, 80 GOOGLEUS United States 22->54 80 System process connects to network (likely due to code injection or exploit) 22->80 26 mstsc.exe 22->26         started        29 Summary.exe 22->29         started        31 Summary.exe 22->31         started        signatures13 process14 signatures15 82 Modifies the context of a thread in another process (thread injection) 26->82 84 Maps a DLL or memory area into another process 26->84 86 Tries to detect virtualization through RDTSC time measurements 26->86 33 cmd.exe 1 26->33         started        88 Multi AV Scanner detection for dropped file 29->88 35 WerFault.exe 10 29->35         started        38 WerFault.exe 4 10 31->38         started        process16 file17 40 conhost.exe 33->40         started        42 C:\ProgramData\Microsoft\...\Report.wer, Unicode 35->42 dropped 44 C:\ProgramData\Microsoft\...\Report.wer, Unicode 38->44 dropped process18
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fc3d76ed49eec628b68edd00a4eddc93a027091aad8fc59991c26b039a81e531/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-01-30 05:20:06 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7q6xn3kj53dcrnuo3uakj3o4soqcoci2vwh4lgmryjvqhgub4uyq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:rs11 persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/230130-jnradshf66/
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Blocklisted process makes network request
Executes dropped EXE
Formbook payload
Formbook
Unpacked files
SH256 hash:
abded07bd212f8caa7ef6fca23e94e8bab80c11d1d62425d1e3fba8c6a9fb5f5
MD5 hash:
87f660a29941487a8f98eee2bdf0151f
SHA1 hash:
07bf214588a5e1859407b49b3b03512a9346fe96
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/5a067882-72a0-4c8f-b943-a70f32b82101/
Parent samples :
fc3d76ed49eec628b68edd00a4eddc93a027091aad8fc59991c26b039a81e531
b2edb64ef798a43a9135ba4d0fea509e72e7d640bcc7e64cfe6b6203a4b1d837
8770f9d32f3b5b26267d6320c355f576df3d09e49d58e50ac16d044f4cf2cf54
SH256 hash:
9c685d8e44f9ba9f7846f1c12be0b10986d76d29a7dd0d9ab71ef25094322a89
MD5 hash:
3e67f37d699b42f54053f911ba7d9318
SHA1 hash:
4b4f35c9e088688a931c6a02267fd75d8566647f
Link:
https://www.unpac.me/results/5a067882-72a0-4c8f-b943-a70f32b82101/
SH256 hash:
fc3d76ed49eec628b68edd00a4eddc93a027091aad8fc59991c26b039a81e531
MD5 hash:
b626e48b28dc536293de54e91a461c95
SHA1 hash:
727ef825ec3c90f2b49208ef431e67e50a9e60aa
Link:
https://www.unpac.me/results/5a067882-72a0-4c8f-b943-a70f32b82101/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fc3d76ed49ee/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/fc3d76ed49eec628b68edd00a4eddc93a027091aad8fc59991c26b039a81e531

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:azov_Dropped
Create hunting rule
Author:Potatech
Description:Azov Detection
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.

Malspam

Formbook

Executable exe fc3d76ed49eec628b68edd00a4eddc93a027091aad8fc59991c26b039a81e531

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/358140/

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