MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 538ecb4299c89ffb241cfd63b6823ab604420ccaea1b05535be1ea2701afca1b. 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

BumbleBee

Vendor detections: 9

Intelligence 9 IOCs YARA 1 File information Comments

SHA256 hash:	538ecb4299c89ffb241cfd63b6823ab604420ccaea1b05535be1ea2701afca1b
SHA3-384 hash:	72e4b4cc588278f49b66361f9f4cf36ffef1c8653394c608796f657bf1fb504d185a25896509543153bc7d43500c99c2
SHA1 hash:	f814fa9359438d312f5efe1aa28033f076a933b8
MD5 hash:	41c0e76996a43c4eead6af11bbd9dbe4
humanhash:	idaho-california-coffee-arizona
File name:	procsvc.dll
Download:	download sample
Signature	BumbleBee Create hunting rule
File size:	1'308'160 bytes
First seen:	2022-05-16 18:55:11 UTC
Last seen:	2022-05-16 19:32:23 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	6722b2e696f3409c5ebe8621b864aad6 (4 x BumbleBee)
ssdeep	24576:A/Cnpo704jLANvIZyltwL9L9pAtIDeFCv4o0k:gjLANvIZyrwL9RmtIDivHk
Threatray	2'174 similar samples on MalwareBazaar
TLSH	T148553A2A48AE4B4DD401CE5458343D73DAF6EF935F649298F576B883CD3E7A900B9B80
TrID	48.7% (.EXE) Win64 Executable (generic) (10523/12/4) 23.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 9.3% (.EXE) OS/2 Executable (generic) (2029/13) 9.2% (.EXE) Generic Win/DOS Executable (2002/3) 9.2% (.EXE) DOS Executable Generic (2000/1)
Reporter	Rony
Tags:	BUMBLEBEE exe

Intelligence

File Origin

# of uploads :

# of downloads :

269

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

procsvc.dll

Verdict:

No threats detected

Analysis date:

2022-05-16 18:56:54 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/9ffec44f-4821-478a-ba39-8b75854b3dd9

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

BumbleBee

Link:

https://www.capesandbox.com/analysis/271279/

Result

Verdict:

Clean

Maliciousness:

Behaviour

Sending a custom TCP request

Result

Malware family:

n/a

Score:

5/10

Tags:

n/a

Link:

https://dragonfly.certego.net/analysis/18121/overview

Behaviour

MalwareBazaar

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Link:

https://www.filescan.io/uploads/62829e58cc2c1ea1e1c52b67/reports/5cf702c1-fb4d-4b21-9fa9-28d08a0f89fe/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:

Suspicious

Link:

https://analyze.intezer.com/analyses/c2da5791-b094-4c63-bcf8-8300114152de

Result

Threat name:

Unknown

Detection:

malicious

Classification:

evad

Score:

84 / 100

Link:

https://www.joesandbox.com/analysis/995303

Signature

Antivirus / Scanner detection for submitted sample

Contain functionality to detect virtual machines

Multi AV Scanner detection for submitted file

Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)

Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)

Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)

Searches for specific processes (likely to inject)

Tries to detect sandboxes / dynamic malware analysis system (registry check)

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/538ecb4299c89ffb241cfd63b6823ab604420ccaea1b05535be1ea2701afca1b/

Threat name:

Win64.Dropper.BumbleBee

Status:

Malicious

First seen:

2022-05-16 17:13:18 UTC

File Type:

PE+ (Dll)

Extracted files:

AV detection:

11 of 26 (42.31%)

Threat level:

3/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=kohmwquzzcp7wja47vr3nar2wyceedgk5inqku234hvcoanpzinq._file

Verdict:

malicious

BumbleBee

2457a1b0008c7059b5d58fffadad4e71f8332e9c09ac55f34b0a078363c29c87

BumbleBee

25ccf19af5dac51ec76ce6da1d2958d5dee34e50e78938b187b627f8771317d1

BumbleBee

281a1cfaebf968012e9596721d14b1bd6429744617e73f96558cb68bcc0db8f8

BumbleBee

382b3e5d777b656f5dc33c18f7e99f4ff98bf02082b8e53f69fe9ac551817223

BumbleBee

4c9ffef418385fdd0aa0e6ea1c0e29f3a7a4af51fbcfd011d0797d6e62c8ccfe

BumbleBee

b721c0639b89437de7bedaba753502d04acdebaa4f80f96f7b0c32289854d9c2

BumbleBee

+ 2'164 additional samples on MalwareBazaar

Result

Malware family:

n/a

Score:

9/10

Tags:

evasion

Link:

https://tria.ge/reports/220516-xlcacafccp/

Behaviour

Suspicious behavior: EnumeratesProcesses

Checks BIOS information in registry

Identifies Wine through registry keys

Enumerates VirtualBox registry keys

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Looks for VirtualBox Guest Additions in registry

Unpacked files

SH256 hash:

538ecb4299c89ffb241cfd63b6823ab604420ccaea1b05535be1ea2701afca1b

MD5 hash:

41c0e76996a43c4eead6af11bbd9dbe4

SHA1 hash:

f814fa9359438d312f5efe1aa28033f076a933b8

Link:

https://www.unpac.me/results/a910a1a9-b0aa-4f79-b98c-774db6ce6d49/

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Legit

Score:

0.00

Link:

https://yomi.yoroi.company/submissions/538ecb4299c89ffb241cfd63b6823ab604420ccaea1b05535be1ea2701afca1b

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.