MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 82a78e7776925c9f48f60d863ac5061e4edeca3bc560d9e6057d4f3dbb51ddf8. 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: 8


Intelligence 8 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 82a78e7776925c9f48f60d863ac5061e4edeca3bc560d9e6057d4f3dbb51ddf8
SHA3-384 hash: adbb6131ffd9c53ffddee9f1c97a981a0dda097d5d45934f90934f7233df3aa6e608eb373d5379e10ef3acb7641b3c29
SHA1 hash: ec23d0ff879f04544e379f1bac2be4d6da5d0992
MD5 hash: da4b730f871efbbaf0c5ce4e71733649
humanhash: xray-spring-xray-sierra
File name:Group_Invitation.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:454'908 bytes
First seen:2022-10-24 07:21:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1f23f452093b5c1ff091a2f9fb4fa3e9 (282 x GuLoader, 37 x RemcosRAT, 27 x VIPKeylogger)
ssdeep 6144:zp+ggs//CJ/InFxgLj76Sn6xSloPwYQIL185+77k4YKnlV/eyf9pNazZr39FVZWl:1N3CwyySn6/uuU+04YgRup9bZWEM
Threatray 3'170 similar samples on MalwareBazaar
TLSH T1F7A4F192F448889AED660BB384368C950693BE6DBDB0B71E1E5673152BF33D3005BE17
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 131b1b0705331902 (1 x GuLoader)
Reporter adrian__luca
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
1
# of downloads :
187
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
Group_Invitation.exe
Verdict:
Malicious activity
Analysis date:
2022-10-24 07:37:24 UTC
Tags:
guloader
Link:
https://app.any.run/tasks/0381f690-0bde-425b-9c2b-f03ab0390a6c

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/323261/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Searching for the window
Creating a file in the Windows subdirectories
Creating a file
Sending a custom TCP request
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:
Unknown
Link:
https://analyze.intezer.com/analyses/ab6166e4-ea27-4df2-91a6-d3d6284dd70b
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1096376
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
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 domain / URL
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 729017 Sample: Group_Invitation.exe Startdate: 24/10/2022 Architecture: WINDOWS Score: 100 37 www.vapes-shop.com 2->37 39 www.twuzzthenight.com 2->39 41 21 other IPs or domains 2->41 51 Snort IDS alert for network traffic 2->51 53 Multi AV Scanner detection for domain / URL 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 6 other signatures 2->57 10 Group_Invitation.exe 6 30 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\System.dll, PE32 10->31 dropped 33 C:\...\api-ms-win-core-profile-l1-1-0.dll, PE32 10->33 dropped 35 C:\...\Microsoft.WindowsAPICodePack.Shell.dll, PE32 10->35 dropped 69 Tries to detect Any.run 10->69 14 Group_Invitation.exe 6 10->14         started        signatures6 process7 dnsIp8 49 ownaplot.com 198.187.29.221, 49836, 80 NAMECHEAP-NETUS United States 14->49 71 Modifies the context of a thread in another process (thread injection) 14->71 73 Tries to detect Any.run 14->73 75 Maps a DLL or memory area into another process 14->75 77 2 other signatures 14->77 18 RAVCpl64.exe 14->18 injected signatures9 process10 process11 20 msiexec.exe 13 18->20         started        23 autoconv.exe 18->23         started        signatures12 59 Tries to steal Mail credentials (via file / registry access) 20->59 61 Tries to harvest and steal browser information (history, passwords, etc) 20->61 63 Writes to foreign memory regions 20->63 65 3 other signatures 20->65 25 explorer.exe 20->25 injected 29 firefox.exe 20->29         started        process13 dnsIp14 43 www.e8a36zg.xyz 154.213.29.16, 49889, 49890, 49891 YISUCLOUDLTD-AS-APYISUCLOUDLTDHK Seychelles 25->43 45 www.greviso.com 103.104.123.42, 49871, 49872, 49873 VNDATA-AS-VNVietStorageTechnologyJointStockCompanyVN Viet Nam 25->45 47 14 other IPs or domains 25->47 67 System process connects to network (likely due to code injection or exploit) 25->67 signatures15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/82a78e7776925c9f48f60d863ac5061e4edeca3bc560d9e6057d4f3dbb51ddf8/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2022-10-20 00:55:04 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=qkty453wsjoj6shwbwddvrigdzhn5sr3yvqntzqfpvht3o2r3x4a._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
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a89c531ad157965de03cf15ab2783f0b24e6db0981556a7bf5ad8fe5c7d66ef5
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b5bcbfe8ba02879ac963d4f9ed48203c934e80edb58b814129ad836544f2c3a3
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b689885667b1f8a29bafedff5fc69526534732ebb7731d98bbc06f7005b245d5
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d87e7752ee36b46b902d88317b5c5b172927760a4f171c95f812991ec62ae963
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ed20ff85f5df587140e0780e16a5eb28df94e1b6330c8256de39d94b5a772e83
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f857890d674a9d4abd8ef6d735c7c03eef0a75777c64cb4a62917d12b68dcbfa
GuLoader
+ 3'160 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/221024-h68rqafbe7/
Behaviour
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Checks installed software on the system
Loads dropped DLL
Unpacked files
SH256 hash:
aa5d80cdc0da52970031309b457e3e3fd505bb1ac13fb79801d15bfbb4a700b2
MD5 hash:
6d8deb7be7360761fd43ec9ddcaa0811
SHA1 hash:
b45482a37b381de2a0293b6be48c4cdef04aebff
Link:
https://www.unpac.me/results/122631f2-2a18-405d-a004-25c238815267/
SH256 hash:
bdf98f8bf56b4c1ac24214099624be351606e4bd5f9dba0b7660439bda16f3c1
MD5 hash:
c92987b8fb49ddf992a2a4492ef4248d
SHA1 hash:
a85f26d2100ddd9a9a1b7cd1bfe832cea6890d31
Link:
https://www.unpac.me/results/122631f2-2a18-405d-a004-25c238815267/
SH256 hash:
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
MD5 hash:
75ed96254fbf894e42058062b4b4f0d1
SHA1 hash:
996503f1383b49021eb3427bc28d13b5bbd11977
Link:
https://www.unpac.me/results/122631f2-2a18-405d-a004-25c238815267/
SH256 hash:
82a78e7776925c9f48f60d863ac5061e4edeca3bc560d9e6057d4f3dbb51ddf8
MD5 hash:
da4b730f871efbbaf0c5ce4e71733649
SHA1 hash:
ec23d0ff879f04544e379f1bac2be4d6da5d0992
Link:
https://www.unpac.me/results/122631f2-2a18-405d-a004-25c238815267/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.28
Link:
https://yomi.yoroi.company/submissions/82a78e7776925c9f48f60d863ac5061e4edeca3bc560d9e6057d4f3dbb51ddf8

File information

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

Malspam

GuLoader

Executable exe 82a78e7776925c9f48f60d863ac5061e4edeca3bc560d9e6057d4f3dbb51ddf8

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/323261/

Comments