MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 45b9f90bee542ccb1e839ba824246f94363e35610981b9620429beecfcedc66b. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments 1
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SHA256 hash: 45b9f90bee542ccb1e839ba824246f94363e35610981b9620429beecfcedc66b
SHA3-384 hash: 0be7e121d6f44a263d7ba5a966226401bbb017473023091153b5f7bd52496919b4bed9dc08d07b51f310f30591a2df6f
SHA1 hash: c7869b00c7da2b5c3a763cc66ce82c952d9a700f
MD5 hash: f423bb96213e1268d40d472bbf13a3a9
humanhash: georgia-golf-avocado-seventeen
File name:f423bb96213e1268d40d472bbf13a3a9
Download: download sample
Signature Formbook
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File size:30'208 bytes
First seen:2022-06-15 03:01:35 UTC
Last seen:2022-06-15 03:38:02 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:Djwmb3CNf7ojFYwQ7XvLWRgcL0ST8iNxy2G:/zb3sm7oWRgcL9HNxvG
TLSH T1DAD2BF1BF7A4CA35EE7506712EB343014BB4B452CC27DB6F6491A10B7E223A249C7B76
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 b28ccaacda53d39b (34 x Formbook, 1 x BitRAT, 1 x SnakeKeylogger)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
255
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
PO 6001 6331.xlsx
Verdict:
Malicious activity
Analysis date:
2022-06-14 23:37:01 UTC
Tags:
encrypted opendir loader exploit CVE-2017-11882 formbook trojan stealer
Link:
https://app.any.run/tasks/f04bf7f1-78e9-49de-a2f9-0f69f165bc76

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/280008/
Detection(s):
SecuriteInfo.com.Trojan.Siggen18.7849.5011.23303.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Sending an HTTP GET request
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62a94bab2d4be2eac84f0347/reports/7c66a02a-b44d-4c3a-8a42-57a02797db33/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/cf48cf25-1df5-4713-a802-4e5af93de7eb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1013378
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
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 domain / URL
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 645874 Sample: peXesHKr5V Startdate: 15/06/2022 Architecture: WINDOWS Score: 100 46 www.usaprostatecenter.com 2->46 66 Snort IDS alert for network traffic 2->66 68 Multi AV Scanner detection for domain / URL 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 8 other signatures 2->72 11 peXesHKr5V.exe 15 7 2->11         started        signatures3 process4 dnsIp5 54 toesbv.ga 192.185.174.189, 49771, 80 UNIFIEDLAYER-AS-1US United States 11->54 42 C:\Users\user\AppData\...\Fxcrogamp.exe, PE32 11->42 dropped 44 C:\Users\user\AppData\...\peXesHKr5V.exe.log, ASCII 11->44 dropped 84 Creates an undocumented autostart registry key 11->84 16 MSBuild.exe 11->16         started        19 MSBuild.exe 11->19         started        21 cmd.exe 1 11->21         started        23 3 other processes 11->23 file6 signatures7 process8 signatures9 56 Modifies the context of a thread in another process (thread injection) 16->56 58 Maps a DLL or memory area into another process 16->58 60 Sample uses process hollowing technique 16->60 62 Queues an APC in another process (thread injection) 16->62 25 explorer.exe 16->25 injected 64 Tries to detect virtualization through RDTSC time measurements 19->64 29 conhost.exe 21->29         started        31 timeout.exe 1 21->31         started        33 conhost.exe 23->33         started        process10 dnsIp11 48 www.burleyqpersianscom.com 50.87.144.178, 49855, 80 UNIFIEDLAYER-AS-1US United States 25->48 50 ballsybanter.com 172.96.185.199, 49856, 80 LEASEWEB-APAC-HKG-10LeasewebAsiaPacificpteltdHK Canada 25->50 52 6 other IPs or domains 25->52 80 System process connects to network (likely due to code injection or exploit) 25->80 82 Performs DNS queries to domains with low reputation 25->82 35 chkdsk.exe 25->35         started        signatures12 process13 signatures14 74 Modifies the context of a thread in another process (thread injection) 35->74 76 Maps a DLL or memory area into another process 35->76 78 Tries to detect virtualization through RDTSC time measurements 35->78 38 cmd.exe 1 35->38         started        process15 process16 40 conhost.exe 38->40         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/45b9f90bee542ccb1e839ba824246f94363e35610981b9620429beecfcedc66b/
Threat name:
ByteCode-MSIL.Packed.Generic
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Status:
Suspicious
First seen:
2022-06-14 19:33:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
13 of 26 (50.00%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iw47sc7okqwmwhudtoucijdpsq3d4nlbbga3syqefg7oz7hnyzvq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:s4s9 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220615-djfp7seaf4/
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
Checks computer location settings
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
45b9f90bee542ccb1e839ba824246f94363e35610981b9620429beecfcedc66b
MD5 hash:
f423bb96213e1268d40d472bbf13a3a9
SHA1 hash:
c7869b00c7da2b5c3a763cc66ce82c952d9a700f
Link:
https://www.unpac.me/results/c1d3d7f5-8fb5-422e-ac78-a51892cbf8ef/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/45b9f90bee54/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/45b9f90bee542ccb1e839ba824246f94363e35610981b9620429beecfcedc66b

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.

Web download

Formbook

Executable exe 45b9f90bee542ccb1e839ba824246f94363e35610981b9620429beecfcedc66b

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2237707/
  
URLhaus
https://urlhaus.abuse.ch/url/2237727/
  
URLhaus
https://urlhaus.abuse.ch/url/2238393/
Cape
Cape
https://www.capesandbox.com/analysis/280008/

Comments


Avatar
zbet commented on 2022-06-15 03:01:39 UTC

url : hxxps://104.168.32.14/m/efx.exe