MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b871c6b8b926ecd74ae498c86d29549d57e92b7be71e8d853424412b4a4092ba. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b871c6b8b926ecd74ae498c86d29549d57e92b7be71e8d853424412b4a4092ba
SHA3-384 hash: 22bb1c4ec760cb6b22ceded180ec0182831619a71c1168ef04e99690f23fb582d4313708d5adba50b4d57ba9970741f2
SHA1 hash: ba552c39fb66d8291909ed8f6d6478e99766598a
MD5 hash: ac19a48773cb7ac724d71f25a288a958
humanhash: beer-kitten-carbon-hamper
File name:justificante de la transfer.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:136'728 bytes
First seen:2022-04-14 08:37:54 UTC
Last seen:2022-04-15 09:56:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 3072:lfY/TU9fE9PEtu+7IbWcLbXEgd7tSliMHggVvBSIZXH:pYa6pbfXE02u0lp
Threatray 2'151 similar samples on MalwareBazaar
TLSH T151D3CF362660D81BE5924B30957B9F1AAFF6A6203564133737701E4AFD373C3AD0A366
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 e1c6e666c6d6deca (3 x GuLoader)
Reporter proxylife
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:imbrangled
Issuer:imbrangled
Algorithm:sha256WithRSAEncryption
Valid from:2022-04-13T13:51:15Z
Valid to:2023-04-13T13:51:15Z
Serial number: 00
Intelligence: 326 malware samples on MalwareBazaar are signed with this code signing certificate
Cert Graveyard Blocklist:This certificate is on the Cert Graveyard blocklist
Thumbprint Algorithm:SHA256
Thumbprint: 32e970364249e065205ef37410171ec2100f84f0e4d28c774ea9552a8070f183
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
363
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
justificante de la transfer.exe
Verdict:
Malicious activity
Analysis date:
2022-04-14 08:58:49 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/860b37ff-8c98-4fc8-a9e7-565e6b8a2045

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/263623/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.39494252.20064.6312.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/13822/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6257dd6eeab80a7a6c1150a4/reports/5f5af519-a49a-44d0-925a-df361a6dcf62/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.
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b43e5c5d-67cd-48cc-9fdb-8c72382a25c2
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/976680
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides threads from debuggers
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 609167 Sample: justificante de la transfer.exe Startdate: 14/04/2022 Architecture: WINDOWS Score: 100 28 carasalegres.org 2->28 32 Multi AV Scanner detection for domain / URL 2->32 34 Found malware configuration 2->34 36 Antivirus detection for URL or domain 2->36 38 4 other signatures 2->38 8 justificante de la transfer.exe 20 2->8         started        signatures3 process4 file5 24 C:\Users\user\AppData\Local\...\System.dll, PE32 8->24 dropped 26 C:\Users\user\AppData\...\hydrolyses.dat, DOS 8->26 dropped 40 Writes to foreign memory regions 8->40 42 Tries to detect Any.run 8->42 44 Hides threads from debuggers 8->44 12 CasPol.exe 13 8->12         started        16 CasPol.exe 8->16         started        18 CasPol.exe 8->18         started        20 CasPol.exe 8->20         started        signatures6 process7 dnsIp8 30 carasalegres.org 185.41.125.77, 49757, 80 A2BNL Netherlands 12->30 46 Tries to detect Any.run 12->46 48 Hides threads from debuggers 12->48 22 conhost.exe 12->22         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b871c6b8b926ecd74ae498c86d29549d57e92b7be71e8d853424412b4a4092ba/
Threat name:
Win32.Downloader.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2022-04-13 21:36:00 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
16 of 26 (61.54%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xby4nofze3wnosxetdeg2kkutvl6sk3344pi3bjueraswssask5a._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
1235559275e785007232e4aee35bd0609d1e52da4900ac8526ff54b592d63c6b
GuLoader
4f29b22b6b787babc2f984172f8ae0e3999b7621aeb6775ce023f2ef5db0b2e7
GuLoader
545e0ad68832f2c8806d7ff7e5c712440869cf865ca3cd88a65e80a9a51b7095
GuLoader
704ad16ef9755c35a9f52a3cd99f8ea83a53a6f7786472b3ea458eeb9730505b
GuLoader
785e0ff473552935ca1c597ceabab86f74a07b7ca6bfc58531a7c2fe74539853
GuLoader
78f8221d10ca5af256eefa0376f55e4688e00005317ab0bfb59f5406f9ed16ae
GuLoader
bbd7431d0d5272927e67c43cd961df4d855a4dcd080373355f980d61ff110337
GuLoader
bfcd5670bfa7bc6ccbf5d9b13ef3993e852f40b1d77b6854c99d1cee1558e78a
GuLoader
c28bfc6622b79ac2f1b1d57425553dd13c14648be45776e5070f78624b4ae1b8
GuLoader
+ 2'141 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/220414-kjp27sahdj/
Behaviour
Enumerates physical storage devices
Loads dropped DLL
Unpacked files
SH256 hash:
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
MD5 hash:
cff85c549d536f651d4fb8387f1976f2
SHA1 hash:
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e
Link:
https://www.unpac.me/results/3fda46c9-1d0b-4319-97df-69e6429dea7a/
SH256 hash:
b871c6b8b926ecd74ae498c86d29549d57e92b7be71e8d853424412b4a4092ba
MD5 hash:
ac19a48773cb7ac724d71f25a288a958
SHA1 hash:
ba552c39fb66d8291909ed8f6d6478e99766598a
Link:
https://www.unpac.me/results/3fda46c9-1d0b-4319-97df-69e6429dea7a/
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/b871c6b8b926ecd74ae498c86d29549d57e92b7be71e8d853424412b4a4092ba

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/263623/

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