MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b920c8e03050d0edb34c60f894105d65f847a66bb4f61259b70eca039adf1e3b. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b920c8e03050d0edb34c60f894105d65f847a66bb4f61259b70eca039adf1e3b
SHA3-384 hash: afbe71b01f7be570260658949bba4dd849d7f507773e9c1a3471a8878e48e0415368c4571c9053562ee0d00213fd30e9
SHA1 hash: dc9307f4eb87ccdc8cfcf4745abffd44e5df1509
MD5 hash: 5383194b3d405037838aa949f483a911
humanhash: vermont-tennessee-lithium-bacon
File name:ADNOC RFQ 97571784.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:336'704 bytes
First seen:2022-07-10 23:55:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5f0c714c36e6cc016b3a1f4bc86559e4 (199 x GuLoader, 14 x Formbook, 4 x AgentTesla)
ssdeep 6144:FDfe9e9TktEG1lTysQS2jjXUnyx5Re3XoT3ecdtcRG:JF9QtEilTyJS+TQa5Re34Tucdd
Threatray 3'344 similar samples on MalwareBazaar
TLSH T14364E03622F9011EE21788BDF58E42872FA555A003DEB7D79711CE3B9DD92F84A8813C
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 bebabbfbffffffff (1 x GuLoader)
Reporter malwarelabnet
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Stalagmitically2 Potpourri Untiaraed5 HEADSTALLS
Issuer:Stalagmitically2 Potpourri Untiaraed5 HEADSTALLS
Algorithm:sha256WithRSAEncryption
Valid from:2022-07-10T21:27:08Z
Valid to:2023-07-10T21:27:08Z
Serial number: 7c0abbc6adab9cb2
Thumbprint Algorithm:SHA256
Thumbprint: c91a688c486107b79027db299af95576684b0b172b52824c8a6f6e136e380f42
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
416
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/285957/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Creating a file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/24948/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
buer overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/62cb675081790e51fe554191/reports/3831a188-2503-4b34-956b-e676f9951bd1/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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/c5cca165-0ccf-4c6e-8010-898ed746d545
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1028175
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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)
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 detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 660669 Sample: ADNOC RFQ 97571784.exe Startdate: 11/07/2022 Architecture: WINDOWS Score: 100 34 www.zzbzjx.com 2->34 36 www.vermeer-mi.com 2->36 38 22 other IPs or domains 2->38 54 Snort IDS alert for network traffic 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Antivirus detection for URL or domain 2->58 60 6 other signatures 2->60 10 ADNOC RFQ 97571784.exe 6 25 2->10         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\System.dll, PE32 10->32 dropped 62 Tries to detect Any.run 10->62 14 ADNOC RFQ 97571784.exe 6 10->14         started        signatures6 process7 dnsIp8 46 kellylacombe.com 162.241.69.192, 443, 49763 UNIFIEDLAYER-AS-1US United States 14->46 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Tries to detect Any.run 14->66 68 Maps a DLL or memory area into another process 14->68 70 2 other signatures 14->70 18 rundll32.exe 12 14->18         started        21 explorer.exe 14->21 injected 24 autochk.exe 14->24         started        26 autofmt.exe 14->26         started        signatures9 process10 dnsIp11 48 System process connects to network (likely due to code injection or exploit) 18->48 50 Modifies the context of a thread in another process (thread injection) 18->50 52 Maps a DLL or memory area into another process 18->52 28 cmd.exe 1 18->28         started        40 creaactivos.com 162.144.15.174, 49788, 80 UNIFIEDLAYER-AS-1US United States 21->40 42 www.zzbzjx.com 103.85.191.197, 49782, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Hong Kong 21->42 44 13 other IPs or domains 21->44 signatures12 process13 process14 30 conhost.exe 28->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b920c8e03050d0edb34c60f894105d65f847a66bb4f61259b70eca039adf1e3b/
Threat name:
Win32.Trojan.Shelsy
Create hunting rule
Status:
Malicious
First seen:
2022-07-10 23:28:20 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
9 of 26 (34.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xeqmrybqkdio3m2mmd4jiec5mx4epjtlwt3bewnxb3fahgw7dy5q._file
Verdict:
suspicious
Similar samples:
081f11a29cbbc406d40f6444ce0f6befcb83ccdb4745711abb2c191774c5ef1a
GuLoader
2fe1aace85b4bf69778fce02eaba9c3d1a139fd40770d6296d3fd9970efacb18
GuLoader
3faa50f804161625bca7b0f900367c6f6f127a40a0914cdf2d47a463d69795b6
GuLoader
7a545a28cacdf3ab2dfa605a626adebad10290b1c6980fbf157eb464dadf2011
GuLoader
92e74208ffa87db6cd20a7f206479b302b837c9611e9cbe88ee6c67a1454c575
GuLoader
9357b03da4163feee42bc9b5e8c86772bfb73bdd5c8ee546bfad1e8c06f69774
GuLoader
a2cdf452f83aa86c0f3ade321cfc00a9ed3671082372081a67cad84a26492051
GuLoader
bf31d8b83e50a7af3e2dc746c74b85d64ce28d7c33b95c09cd46b9caa4d53cad
GuLoader
c494dceddfa1c8c6944a93f902c641ab5f99352ba48b81849e576f7da353314c
GuLoader
d86e152d1a1ed576cf10f18573fc08868ec938fbb655d38d23aebddbfe1bb323
GuLoader
+ 3'334 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/220710-3yz5tsdfap/
Behaviour
Enumerates physical storage devices
Drops file in Windows directory
Checks installed software on the system
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917
MD5 hash:
792b6f86e296d3904285b2bf67ccd7e0
SHA1 hash:
966b16f84697552747e0ddd19a4ba8ab5083af31
Link:
https://www.unpac.me/results/2cbb5389-d477-4bee-8921-d21742587d02/
SH256 hash:
b920c8e03050d0edb34c60f894105d65f847a66bb4f61259b70eca039adf1e3b
MD5 hash:
5383194b3d405037838aa949f483a911
SHA1 hash:
dc9307f4eb87ccdc8cfcf4745abffd44e5df1509
Link:
https://www.unpac.me/results/2cbb5389-d477-4bee-8921-d21742587d02/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b920c8e03050/report/overview.html
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/b920c8e03050d0edb34c60f894105d65f847a66bb4f61259b70eca039adf1e3b

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/285957/

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