MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e630a2d0f63e21c38730606f15825c625d37eb1ff5b038724b403a1f72c591ec. 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: 9


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e630a2d0f63e21c38730606f15825c625d37eb1ff5b038724b403a1f72c591ec
SHA3-384 hash: d2f7b17350eeebcc8320945cc07556ac929633bc2c808f2198e6e28b3e43dd8ef520d655571c0eac550eaf9145cad22d
SHA1 hash: 6dd4286594c7d6171c9cf8479cd6a2b0821d053f
MD5 hash: fc0c4e91f8407bc6d4d650924e7a4fae
humanhash: missouri-bakerloo-monkey-two
File name:Overdue Invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:628'736 bytes
First seen:2021-12-01 08:28:08 UTC
Last seen:2021-12-01 14:10:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:JOjwBJ1HNLNp31GDDMBhfu5YT/oIBxGZBJ1:JXBJFxNp31kDShmc/oIKBJ
Threatray 12'434 similar samples on MalwareBazaar
TLSH T18ED401287BF86F62C4B84BFC552A22448BF5B11BE003E79A1DC531CB2AA1F439B51D57
File icon (PE):PE icon
dhash icon c668f8cce0d0f0f0 (7 x AgentTesla, 4 x Loki, 3 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
127
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Overdue Invoice.exe
Verdict:
Suspicious activity
Analysis date:
2021-12-01 08:31:38 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/598a6587-7bad-456f-8ca7-c179552b1097

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/210208/
Detection(s):
SecuriteInfo.com.Trojan.MulDrop19.9749.7387.32168.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Searching for synchronization primitives
Launching cmd.exe command interpreter
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm obfuscated packed
Link:
https://www.filescan.io/uploads/61a73252b3ca88e2e774660a/reports/02cf6a3e-9ecf-4705-ab5e-9ec7fe629452/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dfdd0dcf-493b-44c0-a005-0fb77cbf0d6f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/899239
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 531717 Sample: Overdue Invoice.exe Startdate: 01/12/2021 Architecture: WINDOWS Score: 100 31 www.heihit.xyz 2->31 33 www.asiapubz-hk.com 2->33 35 heihit.xyz 2->35 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 8 other signatures 2->49 11 Overdue Invoice.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\Overdue Invoice.exe.log, ASCII 11->29 dropped 63 Injects a PE file into a foreign processes 11->63 15 Overdue Invoice.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 37 198.54.117.215, 49819, 80 NAMECHEAP-NETUS United States 18->37 39 www.report-alfarabilabs.com 104.21.28.176, 49821, 80 CLOUDFLARENETUS United States 18->39 41 9 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 53 Performs DNS queries to domains with low reputation 18->53 22 chkdsk.exe 18->22         started        signatures11 process12 signatures13 55 Self deletion via cmd delete 22->55 57 Modifies the context of a thread in another process (thread injection) 22->57 59 Maps a DLL or memory area into another process 22->59 61 Tries to detect virtualization through RDTSC time measurements 22->61 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e630a2d0f63e21c38730606f15825c625d37eb1ff5b038724b403a1f72c591ec/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2021-12-01 05:18:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4yykfuhwhyq4hbzqmbxrlas4mjotp2y76wydq4slia5b64wfshwa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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00f38651e028591175cc482289f6ceabfed9592b7176a24d8f00999ebb0bf996
Formbook
1aac9a73533b5745a863e565e556ecc624619b3cecb917c9e8aee7b141976bb2
Formbook
2cc70aab4d932d3dfce1498801d6838e967e4ddebe3a06372e8ed2e7f86792f2
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5ce12b1abf4c0139a9022d549dafff88c441fbc7127d240cc78ecbd0608d2328
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64b041387c3c512a5b43c2a1d811b35f18f4d537c522dafb7b3e736912907426
Formbook
864492d660b1978cc4b0ceb1008c334704d049cb77f98ddf8179660c7f2125cd
Formbook
8e405b6451c62462b5df1a0490175f4b9712ee1b1ab25a52f7e3a1f736400439
Formbook
a8c5b384b32f2a117fda2336ec2692bfc44e37a56327217454b63eb28ec0701b
Formbook
cae28876b4d13e974995f686d84fdb7e48b4eb583e76cdd53f393dc8921faa63
Formbook
fafcee9b031f24dbd150b43afbb5cac24bbdccfa4125f4f3017bdd8e94926e9e
Formbook
+ 12'424 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ea0r loader rat suricata
Link:
https://tria.ge/reports/211201-kdlgtsahfm/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.asiapubz-hk.com/ea0r/
Unpacked files
SH256 hash:
db987325c4e4e9894460f6ebc7b800e8a485739c062129e81b79c8746b95244a
MD5 hash:
c901847775026a430b3ad82821de6420
SHA1 hash:
df5cc477bfca0774ec6604b6dd1664771c12b0c8
Link:
https://www.unpac.me/results/419bfccc-6b73-4f8a-8663-4f3d370cc9b6/
SH256 hash:
b1171c0b6e400356f32c55c92ba34ce2c02469d0e4e12d116be87dbb234a2e4c
MD5 hash:
c48b3b87a9c63b3df10462c74b8e95c1
SHA1 hash:
568c1b8ec2dad126affccde78a5da58054f5bedb
Link:
https://www.unpac.me/results/419bfccc-6b73-4f8a-8663-4f3d370cc9b6/
SH256 hash:
e630a2d0f63e21c38730606f15825c625d37eb1ff5b038724b403a1f72c591ec
MD5 hash:
fc0c4e91f8407bc6d4d650924e7a4fae
SHA1 hash:
6dd4286594c7d6171c9cf8479cd6a2b0821d053f
Link:
https://www.unpac.me/results/419bfccc-6b73-4f8a-8663-4f3d370cc9b6/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/e630a2d0f63e21c38730606f15825c625d37eb1ff5b038724b403a1f72c591ec

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
Rule name:pe_imphash
Create hunting rule
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.

Malspam

Formbook

Executable exe e630a2d0f63e21c38730606f15825c625d37eb1ff5b038724b403a1f72c591ec

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/210208/

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