MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d943b2b022a12df6ee3158daf54024d0c3f416590ec1c630373f7e6b12a5c52b. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d943b2b022a12df6ee3158daf54024d0c3f416590ec1c630373f7e6b12a5c52b
SHA3-384 hash: cc0ade112b7defd413ae5ee0099c4fc1ee3fb9ad5827f294b2a6e3f32ad8fa9f9d0c51b599677952fc204fddf3c52f79
SHA1 hash: 8f956869ef92e3993b8bc00771ae8528f375177a
MD5 hash: 2256079965a36d3cdb419a5616df8197
humanhash: saturn-burger-failed-fillet
File name:RFQ Catalogues 00645.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:894'464 bytes
First seen:2021-05-24 16:15:56 UTC
Last seen:2021-05-24 17:02:46 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 24576:hBCUNjDoFM+/8XqfWUt9uKxVHQzndvFUokXb//:hBCUNj0i+/8T0ZYnd9UokXb//
Threatray 1'810 similar samples on MalwareBazaar
TLSH 67159E1C55EEF1A6C2A9C37D4AD4643BE990D7373032BD24ECC717980729E41B9A227E
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
126
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ Catalogues 00645.exe
Verdict:
Suspicious activity
Analysis date:
2021-05-24 17:01:31 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/791fdf98-85a7-4168-a71e-f994f9513354

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/790571
Signature
.NET source code contains very large strings
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 422972 Sample: RFQ Catalogues 00645.exe Startdate: 24/05/2021 Architecture: WINDOWS Score: 100 36 www.so-secours.com 2->36 38 www.freedomcommercegroup.store 2->38 40 freedomcommercegroup.store 2->40 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 7 other signatures 2->50 11 RFQ Catalogues 00645.exe 3 2->11         started        signatures3 process4 signatures5 58 Writes to foreign memory regions 11->58 60 Allocates memory in foreign processes 11->60 62 Injects a PE file into a foreign processes 11->62 14 vbc.exe 11->14         started        process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 2 other signatures 14->70 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.mediantextile.com 156.254.144.35, 49752, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 17->30 32 xn--6l3bu5e08gkpk3td5se0a.com 183.111.141.82, 49736, 80 KIXS-AS-KRKoreaTelecomKR Korea Republic of 17->32 34 18 other IPs or domains 17->34 42 System process connects to network (likely due to code injection or exploit) 17->42 21 colorcpl.exe 17->21         started        24 autoconv.exe 17->24         started        signatures10 process11 signatures12 52 Modifies the context of a thread in another process (thread injection) 21->52 54 Maps a DLL or memory area into another process 21->54 56 Tries to detect virtualization through RDTSC time measurements 21->56 26 cmd.exe 1 21->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d943b2b022a12df6ee3158daf54024d0c3f416590ec1c630373f7e6b12a5c52b/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2021-05-24 09:49:30 UTC
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3fb3fmbcuew7n3rrldnpkqbe2db7ifszb3a4mmbxh57gwevfyuvq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
22b8efc34b36c07e5b13908d58dcabee02fcff2e4c94f31798bcfd090a067f25
Formbook
2bec4da3283f4d9329b155c12e5ee6f5f8943bb43d9e66c1767b877b89a19063
Formbook
7e595e94b08c3bbd600f3fe1c310a6eb20b85e0784d4f519e713bb6a5e53446c
Formbook
7f30f6235ede3ca640a27c640c291228e74c1699b460147d5c18bddc3795bd8b
Formbook
8991d5030b4541ecb6d1f0c14cb82914e745e77500f0d276b761d5e857aea943
Formbook
96bf189c954cf26d2aa54d3e9da9e06d2fbefe5922b48b12b5302fbe0b64e2cb
Formbook
c59989579638c9add564a7013d8614bdc6b2f77bec80a0a6d4a8998e66bc6d07
Formbook
ccb857bca12ac7474e7b496a4cc5301cd37a71825f4b9236044ecc7906bd0def
Formbook
ed6b9ae0e3a62d8c24788b8d5b9ffcb9317861746bfc7864777db86369a3def4
Formbook
fd616f39100a908d83e019ce7fa00f72aaa791c1f082b688cec80ae6241d5f4e
Formbook
+ 1'800 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210524-e35v8mdsbn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.talliklinikka.info/bc9h/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/d943b2b022a12df6ee3158daf54024d0c3f416590ec1c630373f7e6b12a5c52b

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.

Malspam

Formbook

Executable exe d943b2b022a12df6ee3158daf54024d0c3f416590ec1c630373f7e6b12a5c52b

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments