MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de7f527f4e29a783a25719a25a228129a817f58ba88a82da92a7bf97fe0cfb9e. 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: 12


Intelligence 12 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: de7f527f4e29a783a25719a25a228129a817f58ba88a82da92a7bf97fe0cfb9e
SHA3-384 hash: 8da7a2219014eaa9426cb23f0461219ccf7be877ae3f0d9745906cf64b9de97822fe2f95ed31da1266b6f3a79972c2b5
SHA1 hash: 280ab08d7716fd2e4071a9ed6374e5dcf5e60893
MD5 hash: 772e8a177ec1c3a3e68b930e1b335700
humanhash: south-north-robin-mike
File name:outstanding_order_980976.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:300'848 bytes
First seen:2022-07-18 19:13:55 UTC
Last seen:2022-07-18 20:03:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5f0c714c36e6cc016b3a1f4bc86559e4 (199 x GuLoader, 14 x Formbook, 4 x AgentTesla)
ssdeep 3072:wPjxQCdIyVliXEc9sjXOBKQL5Q69Im7eIMqLbR91/7dCRu4+9n/wZVWJhVxeTWkP:wDfevBbvSFXeT1/N74ZsVxgJMjueoMSj
Threatray 3'488 similar samples on MalwareBazaar
TLSH T17B54E0D291A044A3EE65437068365C2969E7BF2EBCB8B21F1B59B5742B732D3002F54F
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 3b311903030b2101 (1 x GuLoader)
Reporter GovCERT_CH
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Nedkulede Smldfed9 AVARICIOUSLY
Issuer:Nedkulede Smldfed9 AVARICIOUSLY
Algorithm:sha256WithRSAEncryption
Valid from:2022-07-14T21:29:01Z
Valid to:2023-07-14T21:29:01Z
Serial number: -1f411566582fe308
Thumbprint Algorithm:SHA256
Thumbprint: e030de34bfd6e5d7ab4c3b130bd23512702006a700a7bacdb822af591bb9a803
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
284
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
outstanding_order_980976.img
Verdict:
Malicious activity
Analysis date:
2022-07-15 01:46:25 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0d3ce579-3fb2-4f44-9603-fed12f035f37

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/291703/
Detection(s):
Win.Malware.Guloader-9956119-0
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
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/26672/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
buer guloader nemesis overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/62d5b174ef2b0e63a823739d/reports/50f0966e-a5ac-411f-8ec6-01fd3c29f2a4/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:
Unknown
Link:
https://analyze.intezer.com/analyses/00837466-fe66-4188-8d90-3ae4839e52df
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1036072
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
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
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: 668572 Sample: outstanding_order_980976.exe Startdate: 18/07/2022 Architecture: WINDOWS Score: 100 34 www.theayushtrivedi.xyz 2->34 36 www.studiopounce.com 2->36 38 24 other IPs or domains 2->38 56 Snort IDS alert for network traffic 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for URL or domain 2->60 62 8 other signatures 2->62 11 outstanding_order_980976.exe 6 24 2->11         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\System.dll, PE32 11->32 dropped 72 Tries to detect Any.run 11->72 15 outstanding_order_980976.exe 6 11->15         started        signatures6 process7 dnsIp8 46 createyouroasis.com 162.241.69.192, 443, 49762 UNIFIEDLAYER-AS-1US United States 15->46 48 Modifies the context of a thread in another process (thread injection) 15->48 50 Tries to detect Any.run 15->50 52 Maps a DLL or memory area into another process 15->52 54 2 other signatures 15->54 19 explorer.exe 15->19 injected signatures9 process10 dnsIp11 40 garagedoorrepairwestcovina.com 162.144.14.68, 49797, 80 UNIFIEDLAYER-AS-1US United States 19->40 42 bottomboitatz.com 15.197.142.173, 49794, 80 TANDEMUS United States 19->42 44 13 other IPs or domains 19->44 64 System process connects to network (likely due to code injection or exploit) 19->64 23 wscript.exe 12 19->23         started        26 autofmt.exe 19->26         started        signatures12 process13 signatures14 66 System process connects to network (likely due to code injection or exploit) 23->66 68 Modifies the context of a thread in another process (thread injection) 23->68 70 Maps a DLL or memory area into another process 23->70 28 cmd.exe 1 23->28         started        process15 process16 30 conhost.exe 28->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/de7f527f4e29a783a25719a25a228129a817f58ba88a82da92a7bf97fe0cfb9e/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2022-07-15 00:37:36 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3z7ve72ofgtyhisxdgrfuiubfgubp5mlvcfifwusu67zp7qm7opa._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
121dae49dacf1290b5ef4de577a01161b523d9edf8564fa765e7c00ac6c3b862
GuLoader
431bb21bb232f9a525a624f6c922ce2c177c032659225d9562dde0349fdaaff6
GuLoader
46328084c6b1d250b46ce080d6426e86753df25bcbd6332b253eb578fa789a5e
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4e6a98f49ac2a278d129e4aaf8e8eab4dfe1c7ba0e13aa04dbd7a6952cb1dd2b
GuLoader
5023203b17c87a08ef4f312f93ab58361b4bbda2c35bf76ccc2f99fd1d937584
GuLoader
52a75e153fce3e5d3bcba34c4e9e35db4707e928a41ffcac206b2e72c3209f5f
GuLoader
5b68dbd964aca0aae08182c329a684e43fc27eac7fed3310507caeef86690d69
GuLoader
61becb2257f95087577ede433ea399f8dceb89ee6733e90c9919523befe3376e
GuLoader
9eb7c4ee977f3961ee314e89468f793611fa8c5c95c1f73fdff318b674d6919f
GuLoader
d4deea835f9d1a11d323dc267f8a71f623dbaef0af0492bc9a631cf6293e438b
GuLoader
+ 3'478 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/220718-xxmkfseba4/
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/3783c052-20b4-4193-8518-7324fac48ba4/
SH256 hash:
de7f527f4e29a783a25719a25a228129a817f58ba88a82da92a7bf97fe0cfb9e
MD5 hash:
772e8a177ec1c3a3e68b930e1b335700
SHA1 hash:
280ab08d7716fd2e4071a9ed6374e5dcf5e60893
Link:
https://www.unpac.me/results/3783c052-20b4-4193-8518-7324fac48ba4/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/de7f527f4e29/report/overview.html
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/de7f527f4e29a783a25719a25a228129a817f58ba88a82da92a7bf97fe0cfb9e

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.

Malspam

GuLoader

Executable exe de7f527f4e29a783a25719a25a228129a817f58ba88a82da92a7bf97fe0cfb9e

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/291703/

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