MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3fb44b696363f04a6405191e5da8ac8d14e0f2c59a5a47d962f4a8659e3ff4d5. 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


GuLoader


Vendor detections: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3fb44b696363f04a6405191e5da8ac8d14e0f2c59a5a47d962f4a8659e3ff4d5
SHA3-384 hash: f29307c70561bbfabe37a98bb3916129e41c65163d4cbecf0eec02ff66c9bacdce595004add63420b6adad935e57c3a3
SHA1 hash: 13e6b27fe9943d196249ffcf14c057d92bc1424f
MD5 hash: 0b0b13a0f9ab73378c29e5e756ee92b6
humanhash: beer-potato-nitrogen-tennessee
File name:3fb44b696363f04a6405191e5da8ac8d14e0f2c59a5a47d962f4a8659e3ff4d5
Download: download sample
Signature GuLoader
Create hunting rule
File size:892'344 bytes
First seen:2022-12-06 12:09:33 UTC
Last seen:2022-12-06 13:34:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7c2c71dfce9a27650634dc8b1ca03bf0 (160 x Loki, 58 x Formbook, 55 x Adware.Generic)
ssdeep 24576:4VV5v5O4A99JEEhuLq7kGCe/bYnoKcQFmQV:AtE4Am27kWYRcQ0QV
TLSH T114152212BB66D453F4AC417488E349B2C66F3E1AB4B34187BFD43B2FE4762D2610615B
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 6460c2c6f4b434cc (1 x GuLoader)
Reporter adrian__luca
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Albuminometer
Issuer:Albuminometer
Algorithm:sha256WithRSAEncryption
Valid from:2022-06-26T00:38:22Z
Valid to:2025-06-25T00:38:22Z
Serial number: 6dc568f5673e4c8b
Thumbprint Algorithm:SHA256
Thumbprint: 5e7c1478dacff2bf5afa4d6aee54c8ffbbabd3b33bdfc66853b73f223c24f98b
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
174
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3fb44b696363f04a6405191e5da8ac8d14e0f2c59a5a47d962f4a8659e3ff4d5
Verdict:
Malicious activity
Analysis date:
2022-12-06 12:09:17 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/17edb695-cc1e-4097-986a-1532924959d3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/343397/
Detection(s):
SecuriteInfo.com.Trojan.NSIS.Agent.FP.18857.4413.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Creating a file
Searching for the window
Searching for the Windows task manager window
Running batch commands
Creating a process with a hidden window
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
buer guloader overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/638f311c0c6473d16719a7e9/reports/bbd51fd6-7372-4a68-b3dd-f2f1bf22908b/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/224505ab-9ea8-4295-9457-64c53245630f
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1128887
Signature
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Obfuscated command line found
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 761612 Sample: yENafYsHns.exe Startdate: 06/12/2022 Architecture: WINDOWS Score: 100 44 www.yukselcopy.com 2->44 46 www.workshift.site 2->46 48 10 other IPs or domains 2->48 60 Malicious sample detected (through community Yara rule) 2->60 62 Multi AV Scanner detection for submitted file 2->62 64 Yara detected GuLoader 2->64 66 2 other signatures 2->66 8 yENafYsHns.exe 35 2->8         started        signatures3 process4 file5 38 C:\Users\user\AppData\...\uninstalla.exe, PE32 8->38 dropped 40 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 8->40 dropped 42 C:\Users\user\AppData\Local\...\System.dll, PE32 8->42 dropped 70 Obfuscated command line found 8->70 72 Tries to detect Any.run 8->72 74 Sample uses process hollowing technique 8->74 12 yENafYsHns.exe 8->12         started        16 cmd.exe 1 8->16         started        18 cmd.exe 1 8->18         started        20 282 other processes 8->20 signatures6 process7 dnsIp8 56 googlehosted.l.googleusercontent.com 142.250.181.225, 443, 49829 GOOGLEUS United States 12->56 58 drive.google.com 142.250.181.238, 443, 49828 GOOGLEUS United States 12->58 76 Modifies the context of a thread in another process (thread injection) 12->76 78 Tries to detect Any.run 12->78 80 Maps a DLL or memory area into another process 12->80 82 2 other signatures 12->82 22 explorer.exe 12->22 injected 26 conhost.exe 16->26         started        28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        32 conhost.exe 20->32         started        34 conhost.exe 20->34         started        36 278 other processes 20->36 signatures9 process10 dnsIp11 50 www.multispotmedia.com 173.231.61.25, 49842, 80 WEBNXUS United States 22->50 52 www.silverstreaksoftware.com 81.17.29.146, 49836, 80 PLI-ASCH Switzerland 22->52 54 4 other IPs or domains 22->54 68 System process connects to network (likely due to code injection or exploit) 22->68 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3fb44b696363f04a6405191e5da8ac8d14e0f2c59a5a47d962f4a8659e3ff4d5/
Threat name:
Win32.Trojan.Tiggre
Create hunting rule
Status:
Malicious
First seen:
2022-11-23 00:43:33 UTC
File Type:
PE (Exe)
Extracted files:
11
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h62ew2ldmpyeuzafdepf3kfmrukob4wftjnepwlc6suglhr76tkq._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/221206-pb2hgsah7v/
Behaviour
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Loads dropped DLL
Unpacked files
SH256 hash:
49b7477db8dd22f8cf2d41ee2d79ce57797f02e8c7b9e799951a6c710384349a
MD5 hash:
293165db1e46070410b4209519e67494
SHA1 hash:
777b96a4f74b6c34d43a4e7c7e656757d1c97f01
Link:
https://www.unpac.me/results/f394ec0a-eb01-49ed-b833-bbb77a70d372/
SH256 hash:
4f1e4ce4ae6bade2e61066ff94daeb01947eb0c09c4f02fe26ab63aee8d41faf
MD5 hash:
05c0246ca495081d858d570aeda71cff
SHA1 hash:
35fe5978193a3a671e1f48519bdeeff3398b1418
Link:
https://www.unpac.me/results/f394ec0a-eb01-49ed-b833-bbb77a70d372/
SH256 hash:
a6fe62d19b2b0f608fe3367ba5612742b9ff248b91a32b13fe189c891a22a00d
MD5 hash:
729168d16501390f6b7d92edb38886c4
SHA1 hash:
d244dc2a6325b22a02372c2b8e01ef4a3e51d10c
Link:
https://www.unpac.me/results/f394ec0a-eb01-49ed-b833-bbb77a70d372/
SH256 hash:
3fb44b696363f04a6405191e5da8ac8d14e0f2c59a5a47d962f4a8659e3ff4d5
MD5 hash:
0b0b13a0f9ab73378c29e5e756ee92b6
SHA1 hash:
13e6b27fe9943d196249ffcf14c057d92bc1424f
Link:
https://www.unpac.me/results/f394ec0a-eb01-49ed-b833-bbb77a70d372/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3fb44b696363f04a6405191e5da8ac8d14e0f2c59a5a47d962f4a8659e3ff4d5

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:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader

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/343397/

Comments