MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5b6415df416f3cfe28a72004a02c3a7d2abbddb478a945069e6e20a71215e22. 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 2 File information Comments
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SHA256 hash: c5b6415df416f3cfe28a72004a02c3a7d2abbddb478a945069e6e20a71215e22
SHA3-384 hash: 9f687872c90b024ce84c806ea03bdb595d61d3e68de310269fa09c02546e0dde7a4cf691429d445d3ae530023b24f0b5
SHA1 hash: a6cd168299031cd4c1648dda71060ea5661f1dac
MD5 hash: 56e69dd60ed600fd0a350af3ad2db7ad
humanhash: pluto-early-black-football
File name:Payment_Advice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:26'112 bytes
First seen:2022-05-23 05:48:23 UTC
Last seen:2022-05-23 06:28:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 768:CROwro9zg3C6JMHk2cw9zg3C6JMHk2cj:YOgX
TLSH T172C2513C63B6CE2AF5D506F7F83D37F03D2DAEC5541E965A248430065ABA220CBA17B1
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 07f0d8d4d4d8f007 (8 x AgentTesla, 2 x Formbook, 1 x a310Logger)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
235
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment_Advice.exe
Verdict:
Suspicious activity
Analysis date:
2022-05-23 05:51:06 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e80aca51-56cd-4ae6-85a8-825a246d7f0a

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/273512/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Sending an HTTP GET request
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/628b204f6eb3ff3263228e79/reports/27f92deb-fad8-4601-9d02-65a0a431c600/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:
Malicious
Link:
https://analyze.intezer.com/analyses/e0d49b72-043c-4923-8db9-1b51a90f7457
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/999513
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Creates an undocumented autostart registry key
Executable has a suspicious name (potential lure to open the executable)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Snort IDS alert for network traffic
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 632005 Sample: Payment_Advice.exe Startdate: 23/05/2022 Architecture: WINDOWS Score: 100 71 Snort IDS alert for network traffic 2->71 73 Malicious sample detected (through community Yara rule) 2->73 75 Antivirus detection for URL or domain 2->75 77 8 other signatures 2->77 10 Payment_Advice.exe 15 8 2->10         started        process3 dnsIp4 67 18.183.227.94, 49745, 49765, 49816 AMAZON-02US United States 10->67 69 192.168.2.1 unknown unknown 10->69 57 C:\Users\user\AppData\Roaming\...\Jtqfrri.exe, PE32 10->57 dropped 59 C:\Users\user\...\Ltjwhkqkjyjrpyfwxgitask.exe, PE32 10->59 dropped 61 C:\Users\user\...\Jtqfrri.exe:Zone.Identifier, ASCII 10->61 dropped 63 C:\Users\user\...\Payment_Advice.exe.log, ASCII 10->63 dropped 91 Creates an undocumented autostart registry key 10->91 93 Tries to detect virtualization through RDTSC time measurements 10->93 95 Injects a PE file into a foreign processes 10->95 15 Payment_Advice.exe 10->15         started        18 Ltjwhkqkjyjrpyfwxgitask.exe 14 4 10->18         started        20 cmd.exe 1 10->20         started        22 Payment_Advice.exe 10->22         started        file5 signatures6 process7 signatures8 97 Modifies the context of a thread in another process (thread injection) 15->97 99 Maps a DLL or memory area into another process 15->99 101 Sample uses process hollowing technique 15->101 103 Queues an APC in another process (thread injection) 15->103 24 explorer.exe 3 1 15->24 injected 105 Machine Learning detection for dropped file 18->105 107 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 18->107 109 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 18->109 111 Injects a PE file into a foreign processes 18->111 27 Ltjwhkqkjyjrpyfwxgitask.exe 1 2 18->27         started        30 cmd.exe 1 18->30         started        32 conhost.exe 20->32         started        34 timeout.exe 1 20->34         started        process9 file10 89 Uses ipconfig to lookup or modify the Windows network settings 24->89 36 ipconfig.exe 24->36         started        39 gagelike.exe 24->39         started        41 gagelike.exe 24->41         started        65 C:\Users\user\AppData\...\gagelike.exe, PE32 27->65 dropped 43 conhost.exe 30->43         started        45 timeout.exe 1 30->45         started        signatures11 process12 signatures13 79 Self deletion via cmd delete 36->79 81 Modifies the context of a thread in another process (thread injection) 36->81 83 Maps a DLL or memory area into another process 36->83 85 Tries to detect virtualization through RDTSC time measurements 36->85 47 cmd.exe 1 36->47         started        87 Machine Learning detection for dropped file 39->87 49 cmd.exe 39->49         started        process14 process15 51 conhost.exe 47->51         started        53 conhost.exe 49->53         started        55 timeout.exe 49->55         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c5b6415df416f3cfe28a72004a02c3a7d2abbddb478a945069e6e20a71215e22/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-05-23 01:55:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yw3ecxpuc3z47yukoiaeuawdu7jkxpo3i6fjiudj43rau4jblyra._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:blustealer family:formbook campaign:fs44 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220523-gh1krsbgg9/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Loads dropped DLL
Executes dropped EXE
Formbook Payload
BluStealer
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
c5b6415df416f3cfe28a72004a02c3a7d2abbddb478a945069e6e20a71215e22
MD5 hash:
56e69dd60ed600fd0a350af3ad2db7ad
SHA1 hash:
a6cd168299031cd4c1648dda71060ea5661f1dac
Link:
https://www.unpac.me/results/ca7e0ad8-bab8-45a5-b7fb-fa455bfae720/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c5b6415df416/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/c5b6415df416f3cfe28a72004a02c3a7d2abbddb478a945069e6e20a71215e22

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: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

zip 064e6bd9e69a09f9fb56a9cdb5865c1e32c8b4f080ad83ddc641b87937caf880

Formbook

Executable exe c5b6415df416f3cfe28a72004a02c3a7d2abbddb478a945069e6e20a71215e22

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/273512/
  
Dropped by
SHA256 064e6bd9e69a09f9fb56a9cdb5865c1e32c8b4f080ad83ddc641b87937caf880
  
Dropped by
MD5 e87d342d5d19c0ddce346a62e5db1d8b

Comments