MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6dbd578bacfac6bee49b778b85cd62926c65a7f23bb33ceec705686474308898. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6dbd578bacfac6bee49b778b85cd62926c65a7f23bb33ceec705686474308898
SHA3-384 hash: daebdb999f5713da333f579a202780f3e181074dcae06e02a102e3e9cd5db43d40411b749399a58d135bf759248fc996
SHA1 hash: 5280d1249d0ca942d22d6c78cf864f129d867b65
MD5 hash: 439ec2917b590c3172a790f519f751b7
humanhash: carpet-eight-apart-nevada
File name:Mikbin.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:441'122 bytes
First seen:2021-10-04 04:52:03 UTC
Last seen:2021-10-04 05:51:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:G8LxBVkCInwNqWBD5Xz560A5A8/0FwN47sfJUhhRXmRNOE6SIfBQW8aFm6HlVGjM:bFBtLAq8c7bhh/l58aA6FVGj45
Threatray 10'044 similar samples on MalwareBazaar
TLSH T1D9948C016602D76BD98665F40F30E2FD922C7C892880D08656ECAE3F79B81DF6639DC7
File icon (PE):PE icon
dhash icon d9d9c9f0c8d3618c (1 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
173
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Mikbin.exe
Verdict:
Malicious activity
Analysis date:
2021-10-04 04:54:35 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/f6c16ac8-4fb4-487b-b89a-4057e26c2106

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/194408/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.24986.31617.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:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/615c2f96e3d213d202b7742a/reports/62c71a57-9943-4aa5-959f-a25d4b9ee92d/overview
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f2fcf319-54e2-4e50-a82a-15d4b992255a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/863634
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: 496062 Sample: Mikbin.exe Startdate: 04/10/2021 Architecture: WINDOWS Score: 100 31 www.pacobuilder.com 2->31 33 pacobuilder.com 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 3 other signatures 2->47 11 Mikbin.exe 17 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\gnokeofcx.dll, PE32 11->29 dropped 61 Detected unpacking (changes PE section rights) 11->61 63 Tries to detect virtualization through RDTSC time measurements 11->63 65 Injects a PE file into a foreign processes 11->65 15 Mikbin.exe 11->15         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 73 Queues an APC in another process (thread injection) 15->73 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.rezeromanga.net 81.88.63.46, 49847, 80 REGISTER-ASIT Italy 18->35 37 mg3h888ko.cdndd.net 159.138.153.156, 49826, 80 HWCLOUDS-AS-APHUAWEICLOUDSHK Singapore 18->37 39 14 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 51 Performs DNS queries to domains with low reputation 18->51 22 control.exe 18->22         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 22->53 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 59 Tries to detect virtualization through RDTSC time measurements 22->59 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/6dbd578bacfac6bee49b778b85cd62926c65a7f23bb33ceec705686474308898/
Threat name:
Win32.Trojan.Nsisx
Create hunting rule
Status:
Malicious
First seen:
2021-10-04 03:54:57 UTC
AV detection:
9 of 45 (20.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nw6vpc5m7ldl5ze3o6fyltlcsjwglj7shoztz3whavugi5bqrcma._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
31accabae2032a0fda8dd449182167521360e258df6ebd2316130399d910e990
Formbook
64c00be3d0bc5f000ee6d2d6d49e72c9e9f36090f19b7f9620ff0993a0e84025
Formbook
64e3a0f2298f21833eb7a9c51aa0b2b8d3354bdcefb0156bb34371e3163d8b3d
Formbook
75772375acbcfb6cb668fc2449671a6a83afe1434184ac7c01fd895825fcf5e6
Formbook
990a8fa7e96d2cd90b09ab39794df984bc153d0dcd390afbca19a42b689d4e7d
Formbook
9fd6d5c3553557a9cb263962d71901a681aaa50f3808436b7dff7c4c97289b5e
Formbook
ae55ee08f18b57a38a47ed9bc161b7833e35c31b014e8579ae904a2d4d7c63e3
Formbook
b32448dbeec13e1eb23e55a57ffc06f9dfc8fd44687e19fc0be1c4fbabc10abb
Formbook
dae6ba220bb0a34de731b57965753391343bfe96f9f3fa4fea48102d3377ccf7
Formbook
+ 10'034 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:da5x loader rat
Link:
https://tria.ge/reports/211004-fhfpxsfgg2/
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
Deletes itself
Loads dropped DLL
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.ashleasellshomes.com/da5x/
Unpacked files
SH256 hash:
6dbd578bacfac6bee49b778b85cd62926c65a7f23bb33ceec705686474308898
MD5 hash:
439ec2917b590c3172a790f519f751b7
SHA1 hash:
5280d1249d0ca942d22d6c78cf864f129d867b65
Link:
https://www.unpac.me/results/087897a8-b4d9-42ba-a24f-0ff11e9b290b/
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/6dbd578bacfac6bee49b778b85cd62926c65a7f23bb33ceec705686474308898

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
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
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

Executable exe 6dbd578bacfac6bee49b778b85cd62926c65a7f23bb33ceec705686474308898

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/194408/

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