MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8aaa220adc918c9972a9c588db765290bf51553bed7da48c604d188136d3073. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c8aaa220adc918c9972a9c588db765290bf51553bed7da48c604d188136d3073
SHA3-384 hash: 8c20a0b8ae1be6138d0d1661ac2fe5170816377117c8710055f8bacb09cd4f7e8ac8d96d95cd381a52e45a406ac8e02d
SHA1 hash: a18048af55909d6a72f00fc7f42f708d1c3d37cc
MD5 hash: 4950dc27039e2f9ce46e336603f6398c
humanhash: golf-avocado-fifteen-oranges
File name:4950dc27039e2f9ce46e336603f6398c.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:634'880 bytes
First seen:2021-03-08 13:42:21 UTC
Last seen:2021-03-08 16:02:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:y4nuS6hECuKV+rcWeo6gd0YdYt0Wafry/TJybALi/zg:y4nuSg/umUc/KyYdYt0BDeVGiv
Threatray 4'073 similar samples on MalwareBazaar
TLSH 2ED40166FB594B82C83B0F3A54B2DB411371AC417EF7A34E9548FABADEB32C11123159
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Receipt.xlsx
Verdict:
Malicious activity
Analysis date:
2021-03-07 16:49:00 UTC
Tags:
encrypted exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/f049f33f-6677-4a82-8b07-9c83f856688b

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/122778/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.45853375.1298.753.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/631219
Signature
Binary contains a suspicious time stamp
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Svchost Process
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
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 364577 Sample: yqfUONVqpk.exe Startdate: 08/03/2021 Architecture: WINDOWS Score: 100 31 www.woodlandpizzahartford.com 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Multi AV Scanner detection for domain / URL 2->41 43 Found malware configuration 2->43 45 9 other signatures 2->45 11 yqfUONVqpk.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\yqfUONVqpk.exe.log, ASCII 11->29 dropped 55 Tries to detect virtualization through RDTSC time measurements 11->55 15 yqfUONVqpk.exe 11->15         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 15->18 injected process9 dnsIp10 33 ismaelworks.com 151.106.117.37, 49742, 80 PLUSSERVER-ASN1DE Germany 18->33 35 www.mgg360.com 66.152.187.17, 49725, 80 MULTA-ASN1US United States 18->35 37 21 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 svchost.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Gathering data
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-03-07 20:51:31 UTC
AV detection:
21 of 46 (45.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zcvkeifnzemmtfzktrmi3n3ffef7kfktx3l5usggatiyqe3ngbzq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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06fa1b160e322bd7710c9110b1e4e873795b5c2680b8bbe70bbaf23484533459
Formbook
12e42bff4fa377032623342ac1f23a5c87225a40ef8b900cbb06ae4bd203864d
Formbook
17dad12ff05c404eaa01cd849464c0a631051c8ba3056fe171ebfeb9e16915a8
Formbook
58415bcbd41e70c3f6d45f7b4fa75cf79c1f86f790decfec1dfe52be21f4c994
Formbook
7c201535a28746b62adfa831cfccac096903f5b17ee83b8364fc890fa70a59fd
Formbook
80b056a8c2fee08fd3361a8a271dea407425ca335275d49f81a1c50a06d9ed98
Formbook
92ddc88d7c1bde849c18747f4fcd526c240a81efe9c74ee1dcaa4a72ecc9ac3a
Formbook
99cfc0e79eca01b80f6b466bd9bf208b821e275b3787cb194d0f2b83d6ffe03a
Formbook
9dac57302e2261a1a3c6a665d3960525b27fb70a1fd6b1e135a3e72f11c6f3e6
Formbook
e091222f766082c33c0606405115206cb2d915929dfe2ac899b1945d6442c512
Formbook
+ 4'063 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210308-fw7nykl2qa/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.rizrvd.com/bw82/
Unpacked files
SH256 hash:
f9d949d2f56c449c5d346bb93ed04d38426f563b022dd179ae330dab46682c3b
MD5 hash:
871e23d748ba756eaab5777708f250f8
SHA1 hash:
c9816d4ab38541aaab9aa3eab7cb4898d0b72e4a
Link:
https://www.unpac.me/results/594285a8-ff7d-45ef-939c-dedaea3a5d60/
SH256 hash:
c8aaa220adc918c9972a9c588db765290bf51553bed7da48c604d188136d3073
MD5 hash:
4950dc27039e2f9ce46e336603f6398c
SHA1 hash:
a18048af55909d6a72f00fc7f42f708d1c3d37cc
Link:
https://www.unpac.me/results/594285a8-ff7d-45ef-939c-dedaea3a5d60/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/c8aaa220adc918c9972a9c588db765290bf51553bed7da48c604d188136d3073

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_InTheFu
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.

Web download

Formbook

Executable exe c8aaa220adc918c9972a9c588db765290bf51553bed7da48c604d188136d3073

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1049934/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/122778/

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