MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b17b8be05fc8389990be623a727369826383bfc2fb33693943f208faa184ff40. 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 1 File information Comments
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SHA256 hash: b17b8be05fc8389990be623a727369826383bfc2fb33693943f208faa184ff40
SHA3-384 hash: dde7cc1355af6dd04e519dc5881ddcd74deca0311646185e8b01738cf4968129c99da2a65c56d26e71c7dc989cc58ed9
SHA1 hash: f0a4055436bf4ab684f0ff38a0af2d87ef792069
MD5 hash: 326879d0158d92efc02be27a534e2af4
humanhash: nebraska-nineteen-angel-tango
File name:d0c7488tr739.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:259'552 bytes
First seen:2021-10-14 12:07:09 UTC
Last seen:2021-10-14 13:06:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:wBlL/cwA22vGb3UX6hyXVBG1amR0wlWg+BYazEzjAQBc:CewAFX6koamR0wtNi
Threatray 10'699 similar samples on MalwareBazaar
TLSH T1C24412AF67E488BFD4672931E67BA325F1E386181380D44B63D54FB2AA305C3DE51382
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 :
2
# of downloads :
260
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d0c7488tr739.exe
Verdict:
Malicious activity
Analysis date:
2021-10-14 12:12:35 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/dacbf621-d13c-4c2f-bc6d-ff631eede9ae

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/197549/
Detection(s):
SecuriteInfo.com.Zum.Androm.1.10590.6068.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
60%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/61681da41c2d58ba7406576c/reports/871e4c2a-7327-4e28-9d28-d4319594c8b4/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6c4d39ef-c18c-48a6-8555-49d772135b9e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/870426
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Injects a PE file into a foreign processes
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)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 502851 Sample: d0c7488tr739.exe Startdate: 14/10/2021 Architecture: WINDOWS Score: 100 31 www.leman-web.com 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 3 other signatures 2->45 11 d0c7488tr739.exe 17 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\jmmnbh.dll, PE32 11->29 dropped 59 Detected unpacking (changes PE section rights) 11->59 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Injects a PE file into a foreign processes 11->63 15 d0c7488tr739.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.lz4ios.cloud 45.139.238.65, 49829, 80 TEAM-HOSTASRU Russian Federation 18->33 35 www.bjmysa.com 154.197.25.77, 49833, 80 SONDERCLOUDLIMITED-AS-APSonderCloudLimitedHK Seychelles 18->35 37 9 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 49 Performs DNS queries to domains with low reputation 18->49 22 wscript.exe 18->22         started        signatures11 process12 signatures13 51 Self deletion via cmd delete 22->51 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b17b8be05fc8389990be623a727369826383bfc2fb33693943f208faa184ff40/
Threat name:
Win32.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2021-10-14 07:51:06 UTC
AV detection:
12 of 40 (30.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wf5yxyc7za4jtef6mi5he43jqjryhp6c7mzwsokd6iepvime75aa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
062a33046cca90bc6364cc29ccd47ae7f4165d388f5fb699bb88c35c4509bb90
Formbook
06a96d390ef022721da30abba6d35467fbbd35f09f32e23825a83fc3928292a7
Formbook
1bbc8a34b7590c1593c5a79a8d0f93b17a162f44893c37aa11e4cb9e0e2d96bf
Formbook
50c6754cbbd313acc6a250182439a1191d8f8318f0794feea75bd647b6205f7a
Formbook
75772375acbcfb6cb668fc2449671a6a83afe1434184ac7c01fd895825fcf5e6
Formbook
a4c0f021f7b7e196e3a5d8e324cb4084c14941c94d2aab667eb886464948b44a
Formbook
d079479dd85fb94fe08f6cd70cfff35e39c14294174a8ed6f9b480ffc1cbc9b2
Formbook
e6cde5c1b614549613d30761b34c899f4ff69d7e6e3147c21d68bedd64f8fe25
Formbook
+ 10'689 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:u5eh loader persistence rat spyware stealer suricata
Link:
https://tria.ge/reports/211014-pawwlsacbl/
Behaviour
Modifies Internet Explorer settings
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
NSIS installer
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.retonamoss.com/u5eh/
Unpacked files
SH256 hash:
b17b8be05fc8389990be623a727369826383bfc2fb33693943f208faa184ff40
MD5 hash:
326879d0158d92efc02be27a534e2af4
SHA1 hash:
f0a4055436bf4ab684f0ff38a0af2d87ef792069
Link:
https://www.unpac.me/results/7f449a27-57a8-47c7-99f7-cc70de422434/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.47
Link:
https://yomi.yoroi.company/submissions/b17b8be05fc8389990be623a727369826383bfc2fb33693943f208faa184ff40

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

Executable exe b17b8be05fc8389990be623a727369826383bfc2fb33693943f208faa184ff40

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/197549/

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