MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 852d04f44d46f2a8f75ca8827232765a90c172da5f2e7d84acc919c41bc73856. 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 2 File information Comments
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SHA256 hash: 852d04f44d46f2a8f75ca8827232765a90c172da5f2e7d84acc919c41bc73856
SHA3-384 hash: 280c1bcb9d5fcbc79bff43e4f3b486b1a4b5fd110c42730afb8b62a9a392b9c53c1069e34873d36bcc6ed0643957a683
SHA1 hash: 5bf1b2d976fbc0a303eacc164c7c689ce69486bf
MD5 hash: 973d817b6da3a6d9852108f93973b2ff
humanhash: arkansas-victor-kilo-artist
File name:jraifulLvBuGcnm.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:837'632 bytes
First seen:2022-02-16 13:26:57 UTC
Last seen:2022-02-16 16:20:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:IT8xaVi58nCLgK4bq1haVjhYh/RbP4B0wSS4v7Vk4lm0tUIWXC0oBb:IFC8K4Lyx4B0wSS4jTBulC0S
Threatray 12'594 similar samples on MalwareBazaar
TLSH T19B055B7631EF1096D7B2EBF20BD8ACFF8A5AF177110E753A31912B8683259419D82371
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
232
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/241912/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.26075.3949.25929.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Searching for synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/620cfbb0a2660f3bb9e61405/reports/99041cba-ad46-45f8-89e2-62298ace4176/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.
Gathering data
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/940836
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus detection for URL or domain
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 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 signatures2 2 Behavior Graph ID: 573318 Sample: jraifulLvBuGcnm.exe Startdate: 16/02/2022 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 9 other signatures 2->42 10 jraifulLvBuGcnm.exe 3 2->10         started        process3 file4 28 C:\Users\user\...\jraifulLvBuGcnm.exe.log, ASCII 10->28 dropped 56 Tries to detect virtualization through RDTSC time measurements 10->56 58 Injects a PE file into a foreign processes 10->58 14 jraifulLvBuGcnm.exe 10->14         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.hbdlaq.com 23.80.122.104, 49764, 80 LEASEWEB-USA-LAX-11US United States 17->30 32 www.cardioflextech.com 151.101.2.159, 49784, 80 FASTLYUS United States 17->32 34 6 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 46 Performs DNS queries to domains with low reputation 17->46 21 colorcpl.exe 17->21         started        signatures10 process11 signatures12 48 Self deletion via cmd delete 21->48 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/852d04f44d46f2a8f75ca8827232765a90c172da5f2e7d84acc919c41bc73856/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-02-16 13:27:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=quwqj5cni3zkr524vcbhemtwlkimc4w2l4xh3bfmzem4ig6hhbla._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0b9e04031807f768af9714a0ff05a01ea304bdb32065743b28501eb1d19dad2e
Formbook
0f46e1c5fdbd54458ef74a762dcdf4e9a9c6caabc843025422ba903236348dfb
Formbook
2fd3db9eb65d7a120e24e7245a73e4e88d4b2a7998d82986e8b2e2f20af1d932
Formbook
47d424c280738861bd8cf731e43137dc875d186cd277c6db8ab98f3e74453022
Formbook
640ac0fcf97c0474f805fdf150d7c539650a833e1cbb47393e188da5a1f5f5c3
Formbook
8e133618d88f4eb1975953fc0ef639a7192f7fea403f5a777a698a4631f741a6
Formbook
b3b6f6f58e9df22dda93da3c41997e4c36b48b4e8e851a217c572a0b78ce4b83
Formbook
b744ce05ac972c78665248d8ddc39cc6779639233531957d7e93d1970fe42126
Formbook
d53c0ce4893779afc24b84d79e926ba6684b2dbc549b85e8213137e2a8358ab2
Formbook
d70081accf4af57ec864124e5b0efeabf78d057fa64941e55bfc8fc5b79b66f9
Formbook
+ 12'584 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:wdc8 loader rat suricata
Link:
https://tria.ge/reports/220216-qp417sdacl/
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
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
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/88dc377e-93ad-473e-b095-91cf1ad5b85a/
Parent samples :
4ba337aa0663470b85d2b1b97713a219ea8c5d7ee7f5795dfc9017ae2b123e47
e34c0a8218be6d3783e8cd61b8040b6b39004ad34e68c1cdb2f123b636e6b274
1b9a70f1049fb47db190512121def425ec88c6f007a70308ac63c4549ae78f77
2ceae7d4227b3dc96253c77943851ebb41fab14f6f07af4dadca597f82ebda67
fef3c1fc57689534161dd663bf1cb63d3f728dc87cad1eca4ea1780ff889d056
3356a1d5d011f9117000a3f5326a8eecc0fc0d9ba156af4f634891b19c63773b
d976d19fe98e25ad6fd2c13d26f7e46311feb08952a5913d00231806d6277c78
852d04f44d46f2a8f75ca8827232765a90c172da5f2e7d84acc919c41bc73856
9d144168607d4e6808be108cf349da625b911307dabab1ea645381a5473deb03
a70a717458c5147a02dca62c03c58d2e11e165180e683fa4755c719e6f9ad9c5
b36891ab4a7fa6be1680a65614dd5551a3fa8a89052c381a954601eedd82e62c
2bb47abc0ec7e4e48aa80d53e19056c6adbef6b1392b3816aa335364325870fb
02ad8318feb2f8ce745e2cefa321f18d19b7ad72085664371033fada68bd6b91
3b326d59a151e3500563ad4ce6c86228508d9295f54e71c8160aec088752c994
bb7f87209e05364542dc6536f26af0580d4b10a1d376abbc7ebd531c1d1ee046
SH256 hash:
519ed637d76ed1b7f91b30aee5d52fd62e4289843ac8c0bc17bf3f9f80592291
MD5 hash:
f7f658775c1a450cbe39b3679ff6b7ad
SHA1 hash:
e3a4d85d127ff0cb0c590de7464b5dc4ce46a9b4
Link:
https://www.unpac.me/results/88dc377e-93ad-473e-b095-91cf1ad5b85a/
SH256 hash:
72363be28a284e60723a1f015b5cc77470adf2b29bc8275afe67ffd51ca590cc
MD5 hash:
94b47799af5c669868e596946e77df65
SHA1 hash:
b6571f77e6e089fe61032829d25e5ef47246e95e
Link:
https://www.unpac.me/results/88dc377e-93ad-473e-b095-91cf1ad5b85a/
SH256 hash:
0cc272835ee6d12502dba4fdc6de0bd36de736e26d87c4666a6b70521fbc3bd6
MD5 hash:
353c0b656ffb7e7405135feffff90bf2
SHA1 hash:
8d0524f36290eb0b2df0b8f9cf287ac27bb8abd4
Link:
https://www.unpac.me/results/88dc377e-93ad-473e-b095-91cf1ad5b85a/
SH256 hash:
852d04f44d46f2a8f75ca8827232765a90c172da5f2e7d84acc919c41bc73856
MD5 hash:
973d817b6da3a6d9852108f93973b2ff
SHA1 hash:
5bf1b2d976fbc0a303eacc164c7c689ce69486bf
Link:
https://www.unpac.me/results/88dc377e-93ad-473e-b095-91cf1ad5b85a/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/852d04f44d46/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/852d04f44d46f2a8f75ca8827232765a90c172da5f2e7d84acc919c41bc73856

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
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.

Cape
Cape
https://www.capesandbox.com/analysis/241912/

Comments