MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 618276e6063e38977e32888d4c250e13c38b59c25d923281acf45a5a5cc553ad. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
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SHA256 hash: 618276e6063e38977e32888d4c250e13c38b59c25d923281acf45a5a5cc553ad
SHA3-384 hash: bf30d01a7ab42366ff7549dec1b543c8a074d7fc1600dc4cb1faeb9df776ce1bbb2c4e2b3e53ffa8c0e3b6f3a1d84f73
SHA1 hash: d1f3b6c9215d9f1793a733e40e7dfaebf4c4b319
MD5 hash: 57dbce2725d886e38c687565c94cede9
humanhash: two-eleven-pip-enemy
File name:TM065011207.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:182'784 bytes
First seen:2022-04-21 10:13:18 UTC
Last seen:2022-04-21 13:24:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 384:C0uhoz7vEWpqQz2yAiSXffffokh5w5VWmi8MYQmbFiQptYcFmVc03K:fkozVhui9khiImi8MYQmQ0tYcFmVc6K
Threatray 15'223 similar samples on MalwareBazaar
TLSH T12C04838CBC58812CDDA8EA71181FF573FA2A7FCA754C9B50E4487FCA3A72161068D935
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 b9dc8cccdeded9b8 (12 x AgentTesla, 7 x Formbook, 7 x NanoCore)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
273
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
TM065011207.exe
Verdict:
Malicious activity
Analysis date:
2022-04-21 10:14:31 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/96940444-a517-4797-bda5-a67396170d2a

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/265421/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.28984.4178.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Sending an HTTP GET request to an infection source
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62612e6bffe27d511922415e/reports/19357539-04d6-4293-bc6f-d9562ae545cf/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/de76d3f3-aac6-4a0a-a1d0-f5799dad650a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/980584
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Application Executed Non-Executable Extension
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 613069 Sample: TM065011207.exe Startdate: 21/04/2022 Architecture: WINDOWS Score: 100 79 Found malware configuration 2->79 81 Malicious sample detected (through community Yara rule) 2->81 83 Antivirus detection for URL or domain 2->83 85 9 other signatures 2->85 10 TM065011207.exe 16 7 2->10         started        process3 dnsIp4 75 3.70.247.229, 49712, 49745, 49752 AMAZON-02US United States 10->75 77 192.168.2.1 unknown unknown 10->77 63 C:\Users\user\AppData\Roaming\...\Cbmjuki.exe, PE32 10->63 dropped 65 C:\Users\user\...\Cbmjuki.exe:Zone.Identifier, ASCII 10->65 dropped 67 C:\Users\user\AppData\...\TM065011207.exe.log, ASCII 10->67 dropped 99 Writes to foreign memory regions 10->99 101 Injects a PE file into a foreign processes 10->101 15 InstallUtil.exe 10->15         started        18 cmd.exe 1 10->18         started        file5 signatures6 process7 signatures8 117 Modifies the context of a thread in another process (thread injection) 15->117 119 Maps a DLL or memory area into another process 15->119 121 Sample uses process hollowing technique 15->121 123 2 other signatures 15->123 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        26 timeout.exe 1 18->26         started        process9 dnsIp10 69 ch-cname1.com 23.225.30.174, 49838, 80 CNSERVERSUS United States 20->69 71 www.chungcubaonhandanxuanphuong.com 104.21.18.186, 49839, 80 CLOUDFLARENETUS United States 20->71 73 9 other IPs or domains 20->73 87 System process connects to network (likely due to code injection or exploit) 20->87 89 Performs DNS queries to domains with low reputation 20->89 28 Cbmjuki.exe 14 4 20->28         started        31 Cbmjuki.exe 3 20->31         started        33 rundll32.exe 20->33         started        35 2 other processes 20->35 signatures11 process12 signatures13 103 Multi AV Scanner detection for dropped file 28->103 105 Machine Learning detection for dropped file 28->105 107 Writes to foreign memory regions 28->107 37 InstallUtil.exe 28->37         started        40 cmd.exe 28->40         started        109 Injects a PE file into a foreign processes 31->109 42 InstallUtil.exe 31->42         started        44 cmd.exe 31->44         started        46 InstallUtil.exe 31->46         started        111 Modifies the context of a thread in another process (thread injection) 33->111 113 Maps a DLL or memory area into another process 33->113 115 Tries to detect virtualization through RDTSC time measurements 33->115 48 cmd.exe 33->48         started        process14 signatures15 50 conhost.exe 40->50         started        52 timeout.exe 40->52         started        91 Modifies the context of a thread in another process (thread injection) 42->91 93 Maps a DLL or memory area into another process 42->93 95 Sample uses process hollowing technique 42->95 54 wscript.exe 42->54         started        57 conhost.exe 44->57         started        59 timeout.exe 44->59         started        61 conhost.exe 48->61         started        process16 signatures17 97 Tries to detect virtualization through RDTSC time measurements 54->97
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/618276e6063e38977e32888d4c250e13c38b59c25d923281acf45a5a5cc553ad/
Threat name:
Win32.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2022-04-21 10:14:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mgbhnzqghy4jo7rsrcguyjiocpbywwoclwjdfanm6rnfuxgfkowq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
02a417e5e680719a68ae77c65cb7deb70b85c839484fee128b77cc920674f18b
Formbook
1fba488aa9620978c99b097aa6786588102d91b2b6334b101437dd0377edd216
Formbook
2c64768c4c44b9837b8939f3bdd4fc133465920317abbe565342f37bb8c2ddc9
Formbook
519a77b3e875886add3b2e84ac63cb9e9707381fce9d25d79616554d4c6c2287
Formbook
650baaf8397e4aa4925a88c44c5ab63f5b61b4c03607eb511b3bd6dc6d98f652
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6d1ae3278059d592ae7c4426df9456553b8abfbc3bd90ce0f8d1792e94ae95c2
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90e04c24a8b6d9e6fa70821c848c1ccd7ff1f1bc2c78d19c5bc2fa09838a436e
Formbook
d04db5acb0f3fc347b23214829b9959107dbcfafcd71c0d170cb865a7a28f0b5
Formbook
d7fb7846545905a86a059da93c28f6f14a12b4ff9148b801f7238e75d75036c7
Formbook
+ 15'213 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:tu46 persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220421-l9mv7saegr/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
618276e6063e38977e32888d4c250e13c38b59c25d923281acf45a5a5cc553ad
MD5 hash:
57dbce2725d886e38c687565c94cede9
SHA1 hash:
d1f3b6c9215d9f1793a733e40e7dfaebf4c4b319
Link:
https://www.unpac.me/results/a296b6da-f585-4e78-8e11-7c50d65d4c2c/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/618276e6063e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/618276e6063e38977e32888d4c250e13c38b59c25d923281acf45a5a5cc553ad

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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Cape
Cape
https://www.capesandbox.com/analysis/265421/

Comments