MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b84c172a230631c06d71bc1c55c8b3aa411adcac5e30a23097de8f70bdcbe978. 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: 8


Intelligence 8 IOCs YARA 1 File information Comments
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SHA256 hash: b84c172a230631c06d71bc1c55c8b3aa411adcac5e30a23097de8f70bdcbe978
SHA3-384 hash: 50fa1fa91df5b59474e8cc795bef90ebd16918547c0733cfbac1aacf8ffe48dee382fcd331582d99c006ff3276e1804a
SHA1 hash: 4d0ac6d28c1ce441cdce8984f36573d59a736248
MD5 hash: 66edad59bc570fd979fd4f8a42c954d3
humanhash: butter-east-sweet-fruit
File name:DUE INVOICES.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:173'056 bytes
First seen:2021-09-07 03:16:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0162c0d4b083e9259ae3a5f11034f58d (3 x AgentTesla, 3 x Loki, 2 x Formbook)
ssdeep 1536:JrhB/MYWe8gPhaCFn2eU3+5lD5289pSX+WQijoU8C:JrhB/+k1UgD5289I1
Threatray 9'270 similar samples on MalwareBazaar
TLSH T1FE046BC6363061ADF470C43D5B1EC1562A0ABF3986AC29A733C8B759B5F5520E362F39
dhash icon 71f0cce2be8ef839 (1 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
216
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/185786/
Detection(s):
SecuriteInfo.com.Variant.Razy.920150.32489.8330.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Launching cmd.exe command interpreter
Sending a UDP request
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Unauthorized injection to a system process
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/60260f3f-6438-4d8f-9e3e-03b9079c3bf4
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/846215
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
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
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 signatures2 2 Behavior Graph ID: 478646 Sample: DUE INVOICES.exe Startdate: 07/09/2021 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 7 other signatures 2->42 10 DUE INVOICES.exe 14 2->10         started        process3 dnsIp4 34 img.neko.airforce 167.172.239.151, 443, 49696 DIGITALOCEAN-ASNUS United States 10->34 56 Maps a DLL or memory area into another process 10->56 14 DUE INVOICES.exe 10->14         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 28 xn--marketingrevolucin-61b.com 192.254.187.234, 49711, 80 UNIFIEDLAYER-AS-1US United States 17->28 30 www.bharathub.net 91.195.240.94, 49710, 49721, 80 SEDO-ASDE Germany 17->30 32 17 other IPs or domains 17->32 44 System process connects to network (likely due to code injection or exploit) 17->44 46 Performs DNS queries to domains with low reputation 17->46 21 cmd.exe 17->21         started        signatures10 process11 signatures12 48 Self deletion via cmd delete 21->48 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b84c172a230631c06d71bc1c55c8b3aa411adcac5e30a23097de8f70bdcbe978/
Threat name:
Win32.Trojan.Sabsik
Create hunting rule
Status:
Malicious
First seen:
2021-09-07 01:33:30 UTC
AV detection:
21 of 43 (48.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xbgbokrdayy4a3lrxqoflsftvjarvxfmlyykemex32hxbpol5f4a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2ab54e46be8e8a1b7e66be9bed5492e2cb5c4112e548442e209954affc2dc374
Formbook
31a34d40d07e19268aaf8abeeae2716655969ebe2aaabfdc1b122318507c2e4e
Formbook
43625b0b7ce098d78c074624827e23137ae118f05d6a034f7cadb716fe06e759
Formbook
5c9a6aca5e4cc643a1c9d8f846bf0444577bf45ef94f5a2ac5012c810d277248
Formbook
b09fdc39338aacafb7eb0163757d2b9863f78e5467af017ff4ad2f09e0e266a2
Formbook
bf31b12fa0ba232eb07eed27f004f9c34695ecc3eb4a5270b89f8abb519a059b
Formbook
+ 9'260 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:b6cu loader rat suricata
Link:
https://tria.ge/reports/210907-ds2n2aehcr/
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.xn--marketingrevolucin-61b.com/b6cu/
Unpacked files
SH256 hash:
b84c172a230631c06d71bc1c55c8b3aa411adcac5e30a23097de8f70bdcbe978
MD5 hash:
66edad59bc570fd979fd4f8a42c954d3
SHA1 hash:
4d0ac6d28c1ce441cdce8984f36573d59a736248
Link:
https://www.unpac.me/results/63761238-cd25-4a06-b62b-c15be4780709/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.75
Link:
https://yomi.yoroi.company/submissions/b84c172a230631c06d71bc1c55c8b3aa411adcac5e30a23097de8f70bdcbe978

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 b84c172a230631c06d71bc1c55c8b3aa411adcac5e30a23097de8f70bdcbe978

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/185786/

Comments