MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 677d8f0356d1a1afde7e90e35a132cc47eb2c1568648c1c90c237921df11a15a. 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: 19


Intelligence 19 IOCs YARA 1 File information Comments
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SHA256 hash: 677d8f0356d1a1afde7e90e35a132cc47eb2c1568648c1c90c237921df11a15a
SHA3-384 hash: 6f19dd40882c397e858354e7ce4631c801c8d5e7229ec5b8d78f4498e745d34b5a3ff0c2dc490f2f84ae00b2be702fab
SHA1 hash: 55b45b4acefe1d95bb2c46fd3b8d0667326d7685
MD5 hash: 64273b56a78b2ba729ca0d023f06b51b
humanhash: carbon-king-nitrogen-fanta
File name:berrashok2.1.exe
Download: download sample
Signature Formbook
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File size:379'105 bytes
First seen:2023-07-06 13:41:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:AYa6+F0rM1jS2lyhCCTPvpL8ZfHZx1gBN4kvqxRAHfOEZ78Y+I:AYEF0rWjP+C8p45DaN4kxTCI
Threatray 3'385 similar samples on MalwareBazaar
TLSH T11F84121972E8E572D0511B310DBAEAFD9F6ABC0A5C25620B37E07F8FBD34642D518362
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 e0aaaa2b0303aad0 (34 x Formbook, 21 x AveMariaRAT, 18 x AgentTesla)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
279
Origin country :
US US
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
berrashok2.1.exe
Verdict:
Malicious activity
Analysis date:
2023-07-06 13:42:52 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/51ebe7d0-134f-4f62-bdf2-11fee31053e0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/409549/
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.23748.19877.8873.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
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/96019/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/64a6c4ad784d6094d919e60a/reports/eeb218c5-83e9-43bd-91df-4726de5b2b8c/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/677d8f0356d1a1afde7e90e35a132cc47eb2c1568648c1c90c237921df11a15a
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4d915b34-d2ef-48e9-b659-4b6ba034ed47
Result
Threat name:
FormBook, NSISDropper
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1268343
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
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
Uses netstat to query active network connections and open ports
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1268343 Sample: berrashok2.1.exe Startdate: 06/07/2023 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 7 other signatures 2->44 10 berrashok2.1.exe 19 2->10         started        process3 file4 30 C:\Users\user\AppData\Local\...\bksfhkzcc.dll, PE32 10->30 dropped 56 Detected unpacking (changes PE section rights) 10->56 58 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 10->58 60 Maps a DLL or memory area into another process 10->60 62 Tries to detect virtualization through RDTSC time measurements 10->62 14 berrashok2.1.exe 10->14         started        signatures5 process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 17 explorer.exe 1 14->17 injected process8 dnsIp9 32 www.xyz.ngo 91.195.240.94, 49719, 80 SEDO-ASDE Germany 17->32 34 www.cqmksw.com 38.63.218.163, 49718, 80 COGENT-174US United States 17->34 36 2 other IPs or domains 17->36 46 System process connects to network (likely due to code injection or exploit) 17->46 48 Uses netstat to query active network connections and open ports 17->48 21 NETSTAT.EXE 17->21         started        24 autochk.exe 17->24         started        signatures10 process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 26 cmd.exe 1 21->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/677d8f0356d1a1afde7e90e35a132cc47eb2c1568648c1c90c237921df11a15a/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2023-07-06 13:40:42 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m56y6a2w2gq27xt6sdrvuezmyr7lfqkwqzemdsimen4sdxyrufna._file
Verdict:
malicious
Label(s):
formbook
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Similar samples:
0128e78a9fc3a12e1f247dec90b1de6ed4176587febc5ab0a9dcc0fc3735db0d
Formbook
042a79fca496efba98589c7115c620c116af2ef1e1308a9ab91f21026a5ccd43
Formbook
2a8783a8fa5d2994fdce8d2bce2aeb59434d13534e9f13ccae8de38f72f0798f
Formbook
d2f81e234482c1627b7e92601ef74dbc7f3726c64d963dc4655cf90ee54d63ed
Formbook
f31be72f929b86c056e683db26b8ec78a40f3d1156821fca58901189a8ee965e
Formbook
+ 3'375 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:sy18 rat spyware stealer trojan
Link:
https://tria.ge/reports/230706-qznrzach7t/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
523cecf90b2c91379d2dbe97921bd2dad7a3f3dab526443e1b63b6fde9f8fef0
MD5 hash:
1216b2eed46d1bd3bf17b2d536021067
SHA1 hash:
2e1089face7790fb43754a5aba5816e58663c5f4
Detections:
FormBook
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win_formbook_w0
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win_formbook_auto
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win_formbook_g0
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FormBook
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win_formbook_w0
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win_formbook_auto
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win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/8831808a-f023-4022-9573-e16bd8fc6b76/
SH256 hash:
523cecf90b2c91379d2dbe97921bd2dad7a3f3dab526443e1b63b6fde9f8fef0
MD5 hash:
1216b2eed46d1bd3bf17b2d536021067
SHA1 hash:
2e1089face7790fb43754a5aba5816e58663c5f4
Detections:
FormBook
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win_formbook_w0
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win_formbook_auto
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win_formbook_g0
Create hunting rule
FormBook
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win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/8831808a-f023-4022-9573-e16bd8fc6b76/
SH256 hash:
9e02d40371a4e24becb257db74af52f72ea7dbeebc3987fe99bb193067451136
MD5 hash:
ae6a57490b367f89805eb0ae91de272d
SHA1 hash:
7b5fddfaa763ed27227cc80810658fd88982588a
Link:
https://www.unpac.me/results/8831808a-f023-4022-9573-e16bd8fc6b76/
SH256 hash:
9e02d40371a4e24becb257db74af52f72ea7dbeebc3987fe99bb193067451136
MD5 hash:
ae6a57490b367f89805eb0ae91de272d
SHA1 hash:
7b5fddfaa763ed27227cc80810658fd88982588a
Link:
https://www.unpac.me/results/8831808a-f023-4022-9573-e16bd8fc6b76/
SH256 hash:
677d8f0356d1a1afde7e90e35a132cc47eb2c1568648c1c90c237921df11a15a
MD5 hash:
64273b56a78b2ba729ca0d023f06b51b
SHA1 hash:
55b45b4acefe1d95bb2c46fd3b8d0667326d7685
Link:
https://www.unpac.me/results/8831808a-f023-4022-9573-e16bd8fc6b76/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/677d8f0356d1/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/677d8f0356d1a1afde7e90e35a132cc47eb2c1568648c1c90c237921df11a15a

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:shellcode
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Author:nex
Description:Matched shellcode byte patterns

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/409549/
  
URLhaus
https://urlhaus.abuse.ch/url/2677575/

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