MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8b841d90fe179b235744659d1bf9cd9860ff6d081b25ef0d485beefcf59e28a. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8b841d90fe179b235744659d1bf9cd9860ff6d081b25ef0d485beefcf59e28a
SHA3-384 hash: 8ef10ad569181bfc91c6b2040374337770981a01b2f916760abb42507867f430237fa7eb08a9b6d03bbca974af0b2d9d
SHA1 hash: 4fb161ab3680cf037a8b5dce1c987785e7b5d861
MD5 hash: 43bc92909f85f8597f8bc5b573438615
humanhash: rugby-lake-delta-zebra
File name:43bc92909f85f8597f8bc5b573438615.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:242'386 bytes
First seen:2021-05-31 10:47:05 UTC
Last seen:2021-05-31 12:16:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:jQqq5626dkGos0d6jpjw1C3URZsZGwjp59Xf+B:c5PWkG/0depk1C3UYFjp3f+B
Threatray 5'531 similar samples on MalwareBazaar
TLSH 8234129612E4847BD658077168B3922BF3FBD3C215F9924B6B606FFA09311C01F5B297
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
116
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
43bc92909f85f8597f8bc5b573438615.exe
Verdict:
Malicious activity
Analysis date:
2021-05-31 10:50:12 UTC
Tags:
installer
Link:
https://app.any.run/tasks/97f183f5-fdc8-440b-8666-46e3f4b1d04d

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/163416/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.43151.1601.9337.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/794626
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 427022 Sample: PzwMKIerSQ.exe Startdate: 31/05/2021 Architecture: WINDOWS Score: 100 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 Antivirus detection for URL or domain 2->67 69 5 other signatures 2->69 9 PzwMKIerSQ.exe 1 22 2->9         started        process3 file4 39 C:\Users\user\AppData\Roaming\...\damqb.exe, PE32 9->39 dropped 41 C:\Users\user\AppData\Local\...\System.dll, PE32 9->41 dropped 81 Detected unpacking (changes PE section rights) 9->81 83 Uses netstat to query active network connections and open ports 9->83 85 Maps a DLL or memory area into another process 9->85 87 Tries to detect virtualization through RDTSC time measurements 9->87 13 PzwMKIerSQ.exe 9->13         started        signatures5 process6 signatures7 89 Modifies the context of a thread in another process (thread injection) 13->89 91 Maps a DLL or memory area into another process 13->91 93 Sample uses process hollowing technique 13->93 95 Queues an APC in another process (thread injection) 13->95 16 explorer.exe 13->16 injected 20 NETSTAT.EXE 13->20         started        process8 dnsIp9 43 www.poetryartists.com 16->43 45 www.nutellajam.com 16->45 47 5 other IPs or domains 16->47 55 System process connects to network (likely due to code injection or exploit) 16->55 22 damqb.exe 17 16->22         started        26 wscript.exe 16->26         started        28 damqb.exe 15 16->28         started        57 Modifies the context of a thread in another process (thread injection) 20->57 59 Maps a DLL or memory area into another process 20->59 61 Tries to detect virtualization through RDTSC time measurements 20->61 30 cmd.exe 1 20->30         started        signatures10 process11 file12 37 C:\Users\user\AppData\Local\...\System.dll, PE32 22->37 dropped 71 Multi AV Scanner detection for dropped file 22->71 73 Detected unpacking (changes PE section rights) 22->73 75 Machine Learning detection for dropped file 22->75 77 Maps a DLL or memory area into another process 22->77 32 damqb.exe 22->32         started        79 Tries to detect virtualization through RDTSC time measurements 26->79 35 conhost.exe 30->35         started        signatures13 process14 signatures15 49 Modifies the context of a thread in another process (thread injection) 32->49 51 Maps a DLL or memory area into another process 32->51 53 Sample uses process hollowing technique 32->53
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b8b841d90fe179b235744659d1bf9cd9860ff6d081b25ef0d485beefcf59e28a/
Threat name:
Win32.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-05-30 12:10:28 UTC
AV detection:
14 of 29 (48.28%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xc4edwip4f43enluizm5dp443gda75wqqgzf54guqw7o7t2z4kfa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
06468ea1dc2797e282fadf08ce089550b3f4f665277c65889106e9d33ed61239
Formbook
19e9bb35a3686a6b354c0998d53bd3755a4a722e111f4a82243c1e84c5d6900d
Formbook
3a6ec75b656e165939ee0d1f985678cb1799151e33449bba28c6a830ead01e3a
Formbook
4d81b8f02e5a9eadfdb53142d1ad0c6793d07ca942f5ff5f946e6854fbe74c26
Formbook
540021aa05d8985bf6eca783d86cdada2727b5ed0b1a943cb9cdfb224a4e50f1
Formbook
6e1a82800736b1a05851d8eeca004861946ad916fe5566796e9303766de80131
Formbook
c288fba4b7716faf5562f4608d8ad0c1755ae059ba3d69569b60cf38a5f6f695
Formbook
e3ccade6f4b9accc6cffa813b88862d68f78f0f1c601a57d0573e60deea6a370
Formbook
f559645f8b05d3c7499f23fd4f6f8f74dad45c3b2501266db7c36b67c8e80e7a
Formbook
f73dcca2952ca3a15b309f8064bcaeb48c3213c9ac318c5a741f9805363f8e72
Formbook
+ 5'521 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/210531-matg3ebywe/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.personalizedyardsigns.com/xkcp/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.77
Link:
https://yomi.yoroi.company/submissions/b8b841d90fe179b235744659d1bf9cd9860ff6d081b25ef0d485beefcf59e28a

File information

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

Web download

Formbook

Executable exe b8b841d90fe179b235744659d1bf9cd9860ff6d081b25ef0d485beefcf59e28a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1284997/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/163416/

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