MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 87b30f92275cf7dbcc9a89aad43219b0415e7459448b328a98bfef1257c5bbc8. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 87b30f92275cf7dbcc9a89aad43219b0415e7459448b328a98bfef1257c5bbc8
SHA3-384 hash: a4c97e802c67e8bee32c035128971edd4e84af8eda1720917f9378df8cb0313548a6ce32133d08f92ad720749ccb976f
SHA1 hash: ff5b72ed8f96c84db22f98a831ce067018434847
MD5 hash: 957e62c8805a2d236fc460e0e57b019e
humanhash: zebra-edward-finch-eight
File name:PO03112021STK#Approved#.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:383'488 bytes
First seen:2021-11-09 12:57:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 6144:6zO5kJ/Ugsi9W3s5Sr2YuSVBWn/dk3f9NEbAFdLPlptgEw:6zO5CHSBuSVBNVNPP73tu
Threatray 11'350 similar samples on MalwareBazaar
TLSH T1CC84D03413B59B5ADABC0B392420500027F7648EE737E67E7EE510EA2675F015BB2B72
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
153
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/204494/
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/618a705fa00afa9663a1ea64/reports/e611baab-39e0-4d3b-aef9-8b684dac0407/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4c342397-8e50-4205-9c16-a1ce2b68ed5e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/885992
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
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 submitted file
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: 518472 Sample: PO03112021STK#Approved#.exe Startdate: 09/11/2021 Architecture: WINDOWS Score: 100 31 www.lvmeishan.red 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 8 other signatures 2->45 11 PO03112021STK#Approved#.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\...\PO03112021STK#Approved#.exe.log, ASCII 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 15 PO03112021STK#Approved#.exe 11->15         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.beijingdfzd.com 173.231.37.103, 49812, 80 WEBNXUS United States 18->33 35 www.dymetaverse.com 43.128.51.206, 49785, 80 LILLY-ASUS Japan 18->35 37 13 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 help.exe 18->22         started        signatures11 process12 signatures13 49 Self deletion via cmd delete 22->49 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/87b30f92275cf7dbcc9a89aad43219b0415e7459448b328a98bfef1257c5bbc8/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-08 18:17:00 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=q6zq7erhlt35xte2rgvnimqzwbav45czisftfcuyx7xrev6fxpea._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
115716164b2092df207c750d11a2b4ce05bee204b7f21f1f62d93a5b7d78afa1
Formbook
45f5e2a682896ac3380522e26a0398b8112bafc42948666c9fecafa3dcab69e3
Formbook
6acf1bec87a9b06a63ac3be623a527d7c419d17bb8a258b67e2f7cc2c607cc10
Formbook
75772375acbcfb6cb668fc2449671a6a83afe1434184ac7c01fd895825fcf5e6
Formbook
7b4c1bf9a15a419080fe02866aa26f162f79d5e01763c6af5915b07988556223
Formbook
d079479dd85fb94fe08f6cd70cfff35e39c14294174a8ed6f9b480ffc1cbc9b2
Formbook
d78094f3b6eac87e2d4249671bdc4e044afb31e2e78aac8f2db7186c6d5b6db1
Formbook
+ 11'340 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:io66 loader rat suricata
Link:
https://tria.ge/reports/211109-p7hegscdam/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.dymetaverse.com/io66/
Unpacked files
SH256 hash:
2331d3d223756ef6d008413d8c220e31b49833f36c4b800d08bc944c6fc3ee2b
MD5 hash:
b19432a01c447ef289fb8382682b16bb
SHA1 hash:
f9e58bf0f5ded0cf0a2b70cb5526a9ebf02a00c6
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/f5b72af0-3b3b-4406-aa99-c4e00a805fad/
Parent samples :
87b30f92275cf7dbcc9a89aad43219b0415e7459448b328a98bfef1257c5bbc8
4adcae40731cb2729fc62542c0e6c48717d461fa0f203be15c0cfd39f8b4ffea
6a44e4ffb0822741c069cc807f9b1ff3937273a3b466810493bb437a6d5e98c7
2c68bd37fabbedd352ee351197d915993eb6a7c170733edbaf4272b5d8b7b5c5
SH256 hash:
91655863c7906a8d20c7c782144f553c027843a72f2fdab2b1ccc80808083af0
MD5 hash:
b5044dd0e9c91b1a9185d491da7d07f2
SHA1 hash:
a9ff8129771d85f77b6a145f750c70e53f51125e
Link:
https://www.unpac.me/results/f5b72af0-3b3b-4406-aa99-c4e00a805fad/
SH256 hash:
b34f03c7339785cc78d696efb38c08b2d8f8794544e9c885a1ea2665fa7086a3
MD5 hash:
2a5d8d1ceec49e1cf06309762d5b0444
SHA1 hash:
662592bfd738a179679aba1db4958c8707da7cb1
Link:
https://www.unpac.me/results/f5b72af0-3b3b-4406-aa99-c4e00a805fad/
SH256 hash:
87b30f92275cf7dbcc9a89aad43219b0415e7459448b328a98bfef1257c5bbc8
MD5 hash:
957e62c8805a2d236fc460e0e57b019e
SHA1 hash:
ff5b72ed8f96c84db22f98a831ce067018434847
Link:
https://www.unpac.me/results/f5b72af0-3b3b-4406-aa99-c4e00a805fad/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/87b30f92275c/report/overview.html
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/87b30f92275cf7dbcc9a89aad43219b0415e7459448b328a98bfef1257c5bbc8

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 87b30f92275cf7dbcc9a89aad43219b0415e7459448b328a98bfef1257c5bbc8

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/204494/

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