MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9ac626aa27ed91a3d825388f32d02778a0486e8646fcd9a672c29f3ca6f09e56. 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: 13


Intelligence 13 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9ac626aa27ed91a3d825388f32d02778a0486e8646fcd9a672c29f3ca6f09e56
SHA3-384 hash: f2b96d136b358bcbf9b884cb7d6639a3ea50c9c1ea7bfb6cdb077a4ffc6cd2aba2519d6bda06f55351cbe9031f9cc3d6
SHA1 hash: 8c0387e0cffb83ba164aa422f8a1020c7303e1de
MD5 hash: 20a3a5750dce13373228cc5e85e469ce
humanhash: cola-winter-sierra-mississippi
File name:mammu466563.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:306'751 bytes
First seen:2022-03-15 10:40:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:rGiUCgcBAcKNoLn/ZXzwb3wua7AvqeKn2lFUsMGEm5bCQGw:ACFBfEA+Uuvqeg0/57Gw
TLSH T17F64231F76E1E0BBC88888741275D36DEBF8E2842A7392DF27042CA74C954EB46774D6
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
210
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
mammu466563.exe
Verdict:
Malicious activity
Analysis date:
2022-03-15 10:46:23 UTC
Tags:
installer trojan formbook stealer
Link:
https://app.any.run/tasks/8cf16314-b652-4adf-94e5-03572bcaefef

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/250694/
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.1976.766.11357.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Searching for synchronization primitives
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/62306d410cd58dbd929de14f/reports/f14514fb-386a-4e25-b029-b352c293a40d/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/58b54fb5-0e9b-46fa-a6b4-fbac19d16a4d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/956902
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Injects a PE file into a foreign processes
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 589383 Sample: mammu466563.exe Startdate: 15/03/2022 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 5 other signatures 2->51 11 mammu466563.exe 18 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\...\sayxnro.exe, PE32 11->31 dropped 14 sayxnro.exe 11->14         started        process5 signatures6 63 Antivirus detection for dropped file 14->63 65 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->65 67 Tries to detect virtualization through RDTSC time measurements 14->67 69 Injects a PE file into a foreign processes 14->69 17 sayxnro.exe 14->17         started        process7 signatures8 37 Modifies the context of a thread in another process (thread injection) 17->37 39 Maps a DLL or memory area into another process 17->39 41 Sample uses process hollowing technique 17->41 43 Queues an APC in another process (thread injection) 17->43 20 explorer.exe 17->20 injected process9 dnsIp10 33 www.agentsolutionusa.com 72.249.76.79, 49856, 80 TEKTONICUS United States 20->33 35 www.luiscelis.com 164.88.102.144, 49801, 80 CLAYERLIMITED-AS-APClayerLimitedHK South Africa 20->35 53 System process connects to network (likely due to code injection or exploit) 20->53 55 Uses netsh to modify the Windows network and firewall settings 20->55 24 netsh.exe 20->24         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9ac626aa27ed91a3d825388f32d02778a0486e8646fcd9a672c29f3ca6f09e56/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-03-15 10:41:09 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
21 of 27 (77.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tldcnkrh5wi2hwbfhchtfubhpcqeq3ugi36ntjtsykptzjxqtzla._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:l22s rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220315-mq4kaacahm/
Behaviour
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
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
9ac626aa27ed91a3d825388f32d02778a0486e8646fcd9a672c29f3ca6f09e56
MD5 hash:
20a3a5750dce13373228cc5e85e469ce
SHA1 hash:
8c0387e0cffb83ba164aa422f8a1020c7303e1de
Link:
https://www.unpac.me/results/481c6cc8-4b0f-4456-a545-fb3a147d0c60/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/9ac626aa27ed/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.18
Link:
https://yomi.yoroi.company/submissions/9ac626aa27ed91a3d825388f32d02778a0486e8646fcd9a672c29f3ca6f09e56

File information

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

Malspam

Formbook

Executable exe 9ac626aa27ed91a3d825388f32d02778a0486e8646fcd9a672c29f3ca6f09e56

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/250694/

Comments