MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8e1582ef41bfd2b7b11f0300618807eb95cd40bb63927fc4d178e460d6e244ff. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8e1582ef41bfd2b7b11f0300618807eb95cd40bb63927fc4d178e460d6e244ff
SHA3-384 hash: ee57fede7f121494458963e4feecaf8f0b9b76db21af9d368750522044c3a46cc93ca2ef3716a5a6dbcf72cf98234be0
SHA1 hash: 77183ff5d0a14d55135824ebb0348bd185b8ac80
MD5 hash: b9b9dddadff10e3895c0157451ee5fb3
humanhash: july-oscar-utah-ohio
File name:b9b9dddadff10e3895c0157451ee5fb3.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'270'272 bytes
First seen:2021-12-10 08:58:57 UTC
Last seen:2021-12-10 11:21:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:bIKjy/SYCprGtuVcEWssE7JKzXeqmEkjDoh92sTDsPU303GCau9k2L:bjASjGPKVErmEeDo2svMU3GzT
TLSH T10845121639A1E426D12517B2C2AB80A08FBCF4073D72D3BB3DD152BE66397D94A03787
File icon (PE):PE icon
dhash icon ce9c9496e4949c9c (73 x AgentTesla, 51 x SnakeKeylogger, 30 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
153
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b9b9dddadff10e3895c0157451ee5fb3.exe
Verdict:
Malicious activity
Analysis date:
2021-12-10 09:05:35 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/39c80f3a-aad8-4740-aa1d-1dc3091d40af

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/213104/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.47615984.31435.20908.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61b316dd4d8e6f3a5e1ed0d3/reports/2d0db128-e0cc-4ef3-acde-28f8a7f4c493/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e05d6054-3a5e-4d1d-ae05-4520bac48184
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/905179
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
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)
Multi AV Scanner detection for domain / URL
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 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: 537657 Sample: OoEnEvXVo5.exe Startdate: 10/12/2021 Architecture: WINDOWS Score: 100 32 www.traditionaldancemuseum.xyz 2->32 34 www.shjinbojiaju.com 2->34 36 2 other IPs or domains 2->36 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Multi AV Scanner detection for domain / URL 2->48 50 Found malware configuration 2->50 52 10 other signatures 2->52 11 OoEnEvXVo5.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\OoEnEvXVo5.exe.log, ASCII 11->30 dropped 64 Tries to detect virtualization through RDTSC time measurements 11->64 66 Injects a PE file into a foreign processes 11->66 15 OoEnEvXVo5.exe 11->15         started        signatures6 process7 signatures8 68 Modifies the context of a thread in another process (thread injection) 15->68 70 Maps a DLL or memory area into another process 15->70 72 Sample uses process hollowing technique 15->72 74 Queues an APC in another process (thread injection) 15->74 18 explorer.exe 15->18 injected process9 dnsIp10 38 qqsmt02.com 47.243.170.138, 49820, 80 CNNIC-ALIBABA-US-NET-APAlibabaUSTechnologyCoLtdC United States 18->38 40 www.dazzleside.com 44.227.76.166, 80 AMAZON-02US United States 18->40 42 4 other IPs or domains 18->42 54 System process connects to network (likely due to code injection or exploit) 18->54 22 wlanext.exe 12 18->22         started        signatures11 process12 dnsIp13 44 www.dazzleside.com 22->44 56 Self deletion via cmd delete 22->56 58 Modifies the context of a thread in another process (thread injection) 22->58 60 Maps a DLL or memory area into another process 22->60 62 Tries to detect virtualization through RDTSC time measurements 22->62 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8e1582ef41bfd2b7b11f0300618807eb95cd40bb63927fc4d178e460d6e244ff/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-10 08:50:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
23 of 27 (85.19%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rykyf32bx7jlpmi7amagdcah5ok42qf3mojh7rgrpdsgbvxcit7q._file
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:cfn8 loader rat
Link:
https://tria.ge/reports/211210-kxqwnahcem/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.qqsmt02.com/cfn8/
Unpacked files
SH256 hash:
66fc1d5f75c7bdb200d16be5c245a78ae0ba14ef8e3638ba824bc43836769396
MD5 hash:
0cacc48a16d5764766dbbaa80985e357
SHA1 hash:
f557ca8e58e95a1012d3736a31f0b0378e1424b7
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/0d4906a5-a9e0-43ae-be6d-8c9e09f9b789/
Parent samples :
2021c1d6e9983c17fea9c773618a95407628b9c7b58071edea71c8525cd17d7e
00f38651e028591175cc482289f6ceabfed9592b7176a24d8f00999ebb0bf996
fa6e94c900dc4d280b9748242d5f06a5030bb15c5e2ea7a4527e6987ab14d67c
74a85ed80a3222cb8b97be0909787ba21cb93676db84c2fd33c2a612bd427874
4b0aaf5604a6ce5862163169095dfd26f4301e47e14c9e133415a924c601e5ce
8e1582ef41bfd2b7b11f0300618807eb95cd40bb63927fc4d178e460d6e244ff
SH256 hash:
b9e00f345ba1ad94355e528e9d928962087e6f71209ffefaae71b3677f215d72
MD5 hash:
24198b3e4940906d9040014d9da57b53
SHA1 hash:
b0053be4f1b08e423550f527333d788e82f4678d
Link:
https://www.unpac.me/results/0d4906a5-a9e0-43ae-be6d-8c9e09f9b789/
SH256 hash:
9cd82dba6c55d901ac7d7007b7a04a30146ad7c297400d44f9d96b90c5ca25d4
MD5 hash:
d9477c36da677507cd33c6eef325d694
SHA1 hash:
330dc88b5041ca9edf57542f5a30c37eef6f11b1
Link:
https://www.unpac.me/results/0d4906a5-a9e0-43ae-be6d-8c9e09f9b789/
SH256 hash:
8e1582ef41bfd2b7b11f0300618807eb95cd40bb63927fc4d178e460d6e244ff
MD5 hash:
b9b9dddadff10e3895c0157451ee5fb3
SHA1 hash:
77183ff5d0a14d55135824ebb0348bd185b8ac80
Link:
https://www.unpac.me/results/0d4906a5-a9e0-43ae-be6d-8c9e09f9b789/
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/8e1582ef41bfd2b7b11f0300618807eb95cd40bb63927fc4d178e460d6e244ff

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.

Web download

Formbook

Executable exe 8e1582ef41bfd2b7b11f0300618807eb95cd40bb63927fc4d178e460d6e244ff

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1863440/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/213104/

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