MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c9742ef470d7775d50747b430a247f90d491597395989269c2e42d640baa2df. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
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SHA256 hash: 8c9742ef470d7775d50747b430a247f90d491597395989269c2e42d640baa2df
SHA3-384 hash: 7d5e16b48fc167b7a297a3150bd8d8a8f81502dea8a806a50782149aff774452d8c50e927796b45349d8c1a8efe7d52b
SHA1 hash: c4ce99ddecfabddfe9fbb0916facf2d428c1d176
MD5 hash: 9b2acc245f97613803c7ae319820e210
humanhash: zebra-august-arkansas-october
File name:slip-12-6.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'338'880 bytes
First seen:2021-12-07 09:08:06 UTC
Last seen:2021-12-07 10:40:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:SPJgiLBr2Nl/E7oupiRfu1MSmWmTXa9YNs/gBgVFDRrLe:sJgiLUNls8YiR21fm9TK9YNso6Vz3e
Threatray 9'078 similar samples on MalwareBazaar
TLSH T181555A5C317024AFE83A853145541F379EF12C7D966B93CE731734AB8ABE9428F242E9
File icon (PE):PE icon
dhash icon 86e8c0c8ccd89ce6 (18 x AgentTesla, 18 x Formbook, 8 x Loki)
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
188
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
slip-12-6.exe
Verdict:
Malicious activity
Analysis date:
2021-12-07 09:12:09 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/0dfc8151-c68d-46cd-a477-b8bcccbb817f

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/212038/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.38201328.30268.1046.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61af24b04d8e6f3a5e16964f/reports/3ded556c-2997-4313-beb5-1ab07fa25bdc/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/c21ffef8-0fea-4df3-b5cf-ce9318615662
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/902884
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: CMSTP Execution Process Creation
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 535362 Sample: slip-12-6.exe Startdate: 07/12/2021 Architecture: WINDOWS Score: 100 45 www.medodezdatop.com 2->45 53 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->53 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 14 other signatures 2->59 11 slip-12-6.exe 7 2->11         started        signatures3 process4 file5 37 C:\Users\user\AppData\Roaming\mUxdRDJ.exe, PE32 11->37 dropped 39 C:\Users\user\...\mUxdRDJ.exe:Zone.Identifier, ASCII 11->39 dropped 41 C:\Users\user\AppData\Local\...\tmp9D41.tmp, XML 11->41 dropped 43 C:\Users\user\AppData\...\slip-12-6.exe.log, ASCII 11->43 dropped 65 Uses schtasks.exe or at.exe to add and modify task schedules 11->65 67 Adds a directory exclusion to Windows Defender 11->67 69 Tries to detect virtualization through RDTSC time measurements 11->69 71 2 other signatures 11->71 15 slip-12-6.exe 11->15         started        18 powershell.exe 25 11->18         started        20 schtasks.exe 1 11->20         started        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 Queues an APC in another process (thread injection) 15->87 22 explorer.exe 15->22 injected 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        process9 dnsIp10 47 www.casinocheck77.com 172.67.197.236, 49785, 80 CLOUDFLARENETUS United States 22->47 49 www.walet-crypt.com 22->49 51 10 other IPs or domains 22->51 61 System process connects to network (likely due to code injection or exploit) 22->61 63 Performs DNS queries to domains with low reputation 22->63 30 cmstp.exe 22->30         started        signatures11 process12 signatures13 73 Self deletion via cmd delete 30->73 75 Modifies the context of a thread in another process (thread injection) 30->75 77 Maps a DLL or memory area into another process 30->77 79 Tries to detect virtualization through RDTSC time measurements 30->79 33 cmd.exe 1 30->33         started        process14 process15 35 conhost.exe 33->35         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8c9742ef470d7775d50747b430a247f90d491597395989269c2e42d640baa2df/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-06 07:45:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
31 of 45 (68.89%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rsluf32hbv3xlvihi62dbish7egusfmxhfmysju4fzbnmqf2ulpq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
6f36cde018fac06c6d5d09fbf1a1762fa0dc836d928a8d6a027a6e768b7e9399
Formbook
7d17b18e332045a37d541f993563e8dc53374b2575f1fe59597c8f53ee0fa325
Formbook
9cbaac93f8d7814691953b27252b376665d0938ecaf9c1e0e375176aaa932ce6
Formbook
a0703367806de16bac9c75c016780c0bf3b1d8c21cf7f51b6a47b6a1aba74999
Formbook
c62f6b9af03c0419e1dd8cea2186b52ddfd5c464d9107cdd7d2fc5995325c158
Formbook
e07717afe65c94d4cae860225c8d6aaa4d3bde732598d34c96f98ff927e1d489
Formbook
fc9ba22e8b90dbfe7b8b4b8450f2a93227c949d57395f59a0cedd30c78f05697
Formbook
+ 9'068 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:n3cs loader rat suricata
Link:
https://tria.ge/reports/211207-k4fz2agecp/
Behaviour
Creates scheduled task(s)
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
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.safetyeats.online/n3cs/
Unpacked files
SH256 hash:
07734671ce43c68fa545895af243c7ae5f6e054b2a7943d3d31133b8644c08c5
MD5 hash:
3d0720f7f04062dfda4e9ae5518d2dbb
SHA1 hash:
aa196d010c872c3581406e47bf903ba8d0139971
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/43dcd345-9667-433e-b40b-4c78d6f681e9/
Parent samples :
6f36cde018fac06c6d5d09fbf1a1762fa0dc836d928a8d6a027a6e768b7e9399
9cbaac93f8d7814691953b27252b376665d0938ecaf9c1e0e375176aaa932ce6
8c9742ef470d7775d50747b430a247f90d491597395989269c2e42d640baa2df
SH256 hash:
162d2c79e7edfd3595ea5b39d2b67192b3b6a0a84f02fc03698caffb48f912f9
MD5 hash:
a7db44a853c81c050171fe3de7f31cf7
SHA1 hash:
42bb0a6224d1223fb1631af57c8bd3bd0cc83962
Link:
https://www.unpac.me/results/43dcd345-9667-433e-b40b-4c78d6f681e9/
SH256 hash:
2a48e42748421572e47ec33ce082732525896de7fb080edb0b69655524723a2e
MD5 hash:
6b4f4adcc554291cd9cf66095a0857b8
SHA1 hash:
3abf25f5139e5098539e2f9d3b3ad37908b3060c
Link:
https://www.unpac.me/results/43dcd345-9667-433e-b40b-4c78d6f681e9/
SH256 hash:
8c9742ef470d7775d50747b430a247f90d491597395989269c2e42d640baa2df
MD5 hash:
9b2acc245f97613803c7ae319820e210
SHA1 hash:
c4ce99ddecfabddfe9fbb0916facf2d428c1d176
Link:
https://www.unpac.me/results/43dcd345-9667-433e-b40b-4c78d6f681e9/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/8c9742ef470d7775d50747b430a247f90d491597395989269c2e42d640baa2df

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

rar 0b3cf45f434beb73fa2df5cef7e5f61b2d0cb4fdb426e2053c888c8567085d4d

Formbook

Executable exe 8c9742ef470d7775d50747b430a247f90d491597395989269c2e42d640baa2df

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 0b3cf45f434beb73fa2df5cef7e5f61b2d0cb4fdb426e2053c888c8567085d4d
Cape
Cape
https://www.capesandbox.com/analysis/212038/

Comments