MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b326d59a151e3500563ad4ce6c86228508d9295f54e71c8160aec088752c994. 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 2 File information Comments
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SHA256 hash: 3b326d59a151e3500563ad4ce6c86228508d9295f54e71c8160aec088752c994
SHA3-384 hash: 2aa98966001a9fca0e5403774b65c5511b37157059c30f5da9926cae901b990ed28030cca7d132bf10cbd67a7bf85260
SHA1 hash: 23b602200f90075d81e98bbd921a06f0e8705598
MD5 hash: b2e8472376c1c1ec2207e8e8da88b2b0
humanhash: low-twenty-table-kentucky
File name:zrZYmuDzKucGv6q.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'400'832 bytes
First seen:2022-03-28 11:18:57 UTC
Last seen:2022-03-28 13:18:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:WUUYob+WYBTB276VHZ+cwR8tjeCEffEoQhZ/W5XIeqHcRL:R0pg2kwytB8fyhRW5dqc
Threatray 14'700 similar samples on MalwareBazaar
TLSH T17A557C98325071DEC467C976CD681CECEA207C665F1BC207A053329E9A7DA9BCF146B3
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
3
# of downloads :
229
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/258583/
Detection(s):
SecuriteInfo.com.MachineLearning.Anomalous.95.27328.17582.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
explorer.exe obfuscated packed replace.exe update.exe
Link:
https://www.filescan.io/uploads/624199ada19c6494129f04cb/reports/355c1448-7536-49b9-91f2-14d546a2cc19/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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3b92ee8a-bb71-48b6-9642-449e5ccd2b25
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/965765
Signature
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
Sigma detected: Application Executed Non-Executable Extension
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
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: 598247 Sample: zrZYmuDzKucGv6q.exe Startdate: 28/03/2022 Architecture: WINDOWS Score: 100 40 www.telarte-ceramicas.com 2->40 42 www.fibliz.com 2->42 44 2 other IPs or domains 2->44 52 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 10 other signatures 2->58 11 zrZYmuDzKucGv6q.exe 3 2->11         started        signatures3 process4 file5 38 C:\Users\user\...\zrZYmuDzKucGv6q.exe.log, ASCII 11->38 dropped 70 Tries to detect virtualization through RDTSC time measurements 11->70 15 zrZYmuDzKucGv6q.exe 11->15         started        18 zrZYmuDzKucGv6q.exe 11->18         started        signatures6 process7 signatures8 72 Modifies the context of a thread in another process (thread injection) 15->72 74 Maps a DLL or memory area into another process 15->74 76 Sample uses process hollowing technique 15->76 78 Queues an APC in another process (thread injection) 15->78 20 explorer.exe 15->20 injected process9 signatures10 60 System process connects to network (likely due to code injection or exploit) 20->60 23 rundll32.exe 20->23         started        26 autoconv.exe 20->26         started        28 autoconv.exe 20->28         started        process11 signatures12 62 Self deletion via cmd delete 23->62 64 Modifies the context of a thread in another process (thread injection) 23->64 66 Maps a DLL or memory area into another process 23->66 68 Tries to detect virtualization through RDTSC time measurements 23->68 30 explorer.exe 2 153 23->30         started        34 cmd.exe 1 23->34         started        process13 dnsIp14 46 www.prajahitha.com 91.195.240.94, 49863, 80 SEDO-ASDE Germany 30->46 48 www.casagraph.com 198.50.252.64, 49861, 80 OVHFR Canada 30->48 50 11 other IPs or domains 30->50 80 System process connects to network (likely due to code injection or exploit) 30->80 36 conhost.exe 34->36         started        signatures15 process16
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/3b326d59a151e3500563ad4ce6c86228508d9295f54e71c8160aec088752c994/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-03-28 09:28:54 UTC
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hmzg2wnbkhrvabldvvgonsdcfbii3euv6vhhdsawblwarb2szgka._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
190b1831c5dfcd818fb3a4ff19a5a0ebfdaec9598e71c7a8c9f56f6ac9e52c6f
Formbook
2b4ae3511a344b0417708b8bb5765da86678d5a8c4d87a367eec42937d242965
Formbook
2bb47abc0ec7e4e48aa80d53e19056c6adbef6b1392b3816aa335364325870fb
Formbook
3f0b6a2e50e39420c7b91acb35c08bb088c1ccaaa889491559a572dc481bf489
Formbook
4892e9b8ed5aa57661e3a1fd4bc2d48570cd416af12ab88bbade473ede45c1ed
Formbook
b36891ab4a7fa6be1680a65614dd5551a3fa8a89052c381a954601eedd82e62c
Formbook
d89f28603b8948dd7217e42366328a6e9bd05d59e5de67a4c39f207f8a520d43
Formbook
f440de2871ef2d9b24f7e2d4323841b5a01e7730e33910ad712627580282af45
Formbook
+ 14'690 additional samples on MalwareBazaar
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:wdc8 loader rat suricata
Link:
https://tria.ge/reports/220328-net25sdhdn/
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)
Unpacked files
SH256 hash:
d3ca3783db4188399ea2066aa9ca230c85a75bd547346b1d112219ca65a64bf9
MD5 hash:
5bf0df3cfd245af38deaef08677615a8
SHA1 hash:
a7b2107c1db7306089a298406d032456f3a302b3
Detections:
win_formbook_g0
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win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/76aa9f7e-7894-4e46-9bc0-5c0bd3823be1/
Parent samples :
4ba337aa0663470b85d2b1b97713a219ea8c5d7ee7f5795dfc9017ae2b123e47
e34c0a8218be6d3783e8cd61b8040b6b39004ad34e68c1cdb2f123b636e6b274
1b9a70f1049fb47db190512121def425ec88c6f007a70308ac63c4549ae78f77
2ceae7d4227b3dc96253c77943851ebb41fab14f6f07af4dadca597f82ebda67
fef3c1fc57689534161dd663bf1cb63d3f728dc87cad1eca4ea1780ff889d056
3356a1d5d011f9117000a3f5326a8eecc0fc0d9ba156af4f634891b19c63773b
d976d19fe98e25ad6fd2c13d26f7e46311feb08952a5913d00231806d6277c78
852d04f44d46f2a8f75ca8827232765a90c172da5f2e7d84acc919c41bc73856
9d144168607d4e6808be108cf349da625b911307dabab1ea645381a5473deb03
a70a717458c5147a02dca62c03c58d2e11e165180e683fa4755c719e6f9ad9c5
b36891ab4a7fa6be1680a65614dd5551a3fa8a89052c381a954601eedd82e62c
2bb47abc0ec7e4e48aa80d53e19056c6adbef6b1392b3816aa335364325870fb
02ad8318feb2f8ce745e2cefa321f18d19b7ad72085664371033fada68bd6b91
3b326d59a151e3500563ad4ce6c86228508d9295f54e71c8160aec088752c994
bb7f87209e05364542dc6536f26af0580d4b10a1d376abbc7ebd531c1d1ee046
SH256 hash:
edeba0e934fab904e6367a41cd89ee3725dcb0ff8cdfe94ed4f531ed66863c5f
MD5 hash:
f3853deab3d65f17200abe16f01992c7
SHA1 hash:
f7a574a33f76914f8bfba83ea9be4d010364e1f7
Link:
https://www.unpac.me/results/76aa9f7e-7894-4e46-9bc0-5c0bd3823be1/
SH256 hash:
613b2819d35360cbfe6c94b2b998d1a4998c89f5bdef505e0e158e1288ab684c
MD5 hash:
3096cbaf4b5d40f9c61bf7ce13fde62f
SHA1 hash:
6b3c580e51fd306bfdc2e727ca3bc7805aba4b53
Link:
https://www.unpac.me/results/76aa9f7e-7894-4e46-9bc0-5c0bd3823be1/
SH256 hash:
9c2e04bbc7c4bbb379a5958b53064eec172a9664fb6c4b9f6eee89ebd1c1aba5
MD5 hash:
18391504ffce480b38335af5b3d9557a
SHA1 hash:
4c2564282c5035fc4f03e75694a772ae02220002
Link:
https://www.unpac.me/results/76aa9f7e-7894-4e46-9bc0-5c0bd3823be1/
SH256 hash:
3b326d59a151e3500563ad4ce6c86228508d9295f54e71c8160aec088752c994
MD5 hash:
b2e8472376c1c1ec2207e8e8da88b2b0
SHA1 hash:
23b602200f90075d81e98bbd921a06f0e8705598
Link:
https://www.unpac.me/results/76aa9f7e-7894-4e46-9bc0-5c0bd3823be1/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/3b326d59a151/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/3b326d59a151e3500563ad4ce6c86228508d9295f54e71c8160aec088752c994

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
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/258583/

Comments