MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b11153930f782739246ba8278966eb1af994f843f652f1e9917bad6becce6f79. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments 1
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SHA256 hash: b11153930f782739246ba8278966eb1af994f843f652f1e9917bad6becce6f79
SHA3-384 hash: b5ad593b1c5d7e77ce77755e7109eca10bdb8a348836745fe048580960f5c47ad11264d89c412418ec63708c0bd1b34d
SHA1 hash: 7b7f8b59309809fa8c6eecf700d87728e919b93c
MD5 hash: 40ecc58f4a2de2c16d79dd3725b93145
humanhash: arkansas-thirteen-jig-blue
File name:40ecc58f4a2de2c16d79dd3725b93145
Download: download sample
Signature Formbook
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File size:81'408 bytes
First seen:2022-05-31 17:21:55 UTC
Last seen:2022-05-31 18:08:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:2WlbILyvCX6b8+aJ9JpJJwjbuh8jpn3e9fjwoXoOcCgc:BlbHCCaJ9JpJJGu2pu1hRR
TLSH T185838D237A499F92C4683C34D835E3A69A712EF16C3A6763FDA47B1EB5744D1CB041B0
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon f0a4d4f4c4d8cccc (4 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
360
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
40ecc58f4a2de2c16d79dd3725b93145
Verdict:
Malicious activity
Analysis date:
2022-05-31 17:48:30 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/946df2da-4d22-4b3a-a781-59ee507a7328

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/275784/
Detection(s):
SecuriteInfo.com.Trojan.DownloaderNET.391.11682.18780.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Verdict:
UNKNOWN
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/b4be77c8-d237-4d46-bf35-eb921fa809e3
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1004459
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Found malware configuration
Injects a PE file into a foreign processes
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 636951 Sample: 7mu8SgyVVl Startdate: 31/05/2022 Architecture: WINDOWS Score: 100 55 Snort IDS alert for network traffic 2->55 57 Multi AV Scanner detection for domain / URL 2->57 59 Found malware configuration 2->59 61 12 other signatures 2->61 10 7mu8SgyVVl.exe 15 7 2->10         started        process3 dnsIp4 51 abscongo.cf 192.185.174.18, 49739, 80 UNIFIEDLAYER-AS-1US United States 10->51 53 192.168.2.1 unknown unknown 10->53 43 C:\Users\user\AppData\Roaming\...\Zuwuf.exe, PE32 10->43 dropped 45 C:\Users\user\...\Zuwuf.exe:Zone.Identifier, ASCII 10->45 dropped 47 C:\Users\user\AppData\...\7mu8SgyVVl.exe.log, ASCII 10->47 dropped 73 Creates an undocumented autostart registry key 10->73 75 Writes to foreign memory regions 10->75 77 Allocates memory in foreign processes 10->77 79 Injects a PE file into a foreign processes 10->79 15 MSBuild.exe 10->15         started        18 cmd.exe 1 10->18         started        20 cmd.exe 1 10->20         started        file5 signatures6 process7 signatures8 81 Modifies the context of a thread in another process (thread injection) 15->81 83 Maps a DLL or memory area into another process 15->83 85 Sample uses process hollowing technique 15->85 87 2 other signatures 15->87 22 explorer.exe 15->22 injected 26 conhost.exe 18->26         started        28 timeout.exe 1 18->28         started        30 conhost.exe 20->30         started        32 timeout.exe 1 20->32         started        process9 dnsIp10 49 www.janschlesinger.com 217.160.0.226, 49800, 80 ONEANDONE-ASBrauerstrasse48DE Germany 22->49 69 System process connects to network (likely due to code injection or exploit) 22->69 71 Uses ipconfig to lookup or modify the Windows network settings 22->71 34 ipconfig.exe 22->34         started        37 autofmt.exe 22->37         started        signatures11 process12 signatures13 63 Modifies the context of a thread in another process (thread injection) 34->63 65 Maps a DLL or memory area into another process 34->65 67 Tries to detect virtualization through RDTSC time measurements 34->67 39 cmd.exe 1 34->39         started        process14 process15 41 conhost.exe 39->41         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/b11153930f782739246ba8278966eb1af994f843f652f1e9917bad6becce6f79/
Threat name:
ByteCode-MSIL.Trojan.Phonzy
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Status:
Malicious
First seen:
2022-05-31 14:39:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=weivheyppattsjdlvatyszxldl4zj6cd6zjpd2mrpowwx3gon54q._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:s4s9 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220531-vxj38abhe5/
Behaviour
Delays execution with timeout.exe
Gathers network information
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
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
b11153930f782739246ba8278966eb1af994f843f652f1e9917bad6becce6f79
MD5 hash:
40ecc58f4a2de2c16d79dd3725b93145
SHA1 hash:
7b7f8b59309809fa8c6eecf700d87728e919b93c
Link:
https://www.unpac.me/results/3549a67c-b7d5-409b-8768-c71bc0e0488e/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b11153930f78/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/b11153930f782739246ba8278966eb1af994f843f652f1e9917bad6becce6f79

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:malware_Formbook_strings
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Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
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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 b11153930f782739246ba8278966eb1af994f843f652f1e9917bad6becce6f79

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2219489/
Cape
Cape
https://www.capesandbox.com/analysis/275784/

Comments


Avatar
zbet commented on 2022-05-31 17:22:07 UTC

url : hxxp://192.210.240.37/n/gbp.exe