MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e504cb27581e7e2bf9f32203245d8a2d00451808a66a641b8e090ebd93a5842d. 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: e504cb27581e7e2bf9f32203245d8a2d00451808a66a641b8e090ebd93a5842d
SHA3-384 hash: 32e1569d54f65d81d6a148cca45eaf51da8d42e3d8545c157dca2a1b12d5e9bb51e281923e3411c2d57204719ec7acff
SHA1 hash: 2389bdd4adae46bf00cd02ec4311ef7674de9418
MD5 hash: e981714c994690235939894502537855
humanhash: california-william-undress-papa
File name:Prveudtagning.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:483'928 bytes
First seen:2022-11-03 12:37:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (527 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 12288:O+1uZ6p+L0bB7ievXCl3QIYvbCMwLHqaW1NJQ5sAtHs:7rO0bFiQXCCJt1bssUs
Threatray 132 similar samples on MalwareBazaar
TLSH T181A412111368E0EBECB3A37009BA2B7B2DBFD45145D60A4B4B782D5C3F15B82473976A
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 30f0d4bea6c2f0d8 (6 x GuLoader)
Reporter lowmal3
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-03-18T11:33:16Z
Valid to:2025-03-17T11:33:16Z
Serial number: -64cae970e9aa08ef
Thumbprint Algorithm:SHA256
Thumbprint: 78db9008c76b8f872ea0038342511c698eba076476a7c3f0b2a0c7e042f13e53
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
209
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/327942/
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.13398.21676.8044.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a file in the %temp% subdirectories
Delayed reading of the file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/47996/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6363df7b96e7fbdce59016d6/reports/a1f3acda-37a0-4308-aaaa-ce93f230e7f8/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/420df594-ec12-4177-a005-232892dee936
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
evad.troj.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1104363
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 submitted file
Queues an APC in another process (thread injection)
Sample is not signed and drops a device driver
Sample uses process hollowing technique
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: 737023 Sample: Prveudtagning.exe Startdate: 03/11/2022 Architecture: WINDOWS Score: 100 35 www.whatthefrack.info 2->35 37 www.weeklydarpanbd.com 2->37 39 27 other IPs or domains 2->39 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus detection for URL or domain 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 3 other signatures 2->57 10 Prveudtagning.exe 4 36 2->10         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\System.dll, PE32 10->29 dropped 31 C:\Users\user\...\libgoocanvas-3.0-9.dll, PE32+ 10->31 dropped 33 C:\Users\user\...\APM_DefConvertor.dll, PE32 10->33 dropped 69 Tries to detect Any.run 10->69 71 Sample is not signed and drops a device driver 10->71 14 Prveudtagning.exe 6 10->14         started        signatures6 process7 dnsIp8 47 drive.google.com 142.250.186.110, 443, 49817 GOOGLEUS United States 14->47 49 googlehosted.l.googleusercontent.com 172.217.16.193, 443, 49818 GOOGLEUS United States 14->49 73 Modifies the context of a thread in another process (thread injection) 14->73 75 Tries to detect Any.run 14->75 77 Maps a DLL or memory area into another process 14->77 79 2 other signatures 14->79 18 RAVCpl64.exe 14->18 injected signatures9 process10 process11 20 systray.exe 13 18->20         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 23 explorer.exe 20->23 injected 27 firefox.exe 20->27         started        process13 dnsIp14 41 www.takano-kk.net 103.141.97.43, 49838, 49839, 49842 VECTANTARTERIANetworksCorporationJP Japan 23->41 43 declancosson.com 162.144.15.77, 49845, 49846, 49847 UNIFIEDLAYER-AS-1US United States 23->43 45 16 other IPs or domains 23->45 67 System process connects to network (likely due to code injection or exploit) 23->67 signatures15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e504cb27581e7e2bf9f32203245d8a2d00451808a66a641b8e090ebd93a5842d/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2022-11-03 10:02:08 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4ucmwj2ydz7cx6pteibsixmkfuaekgaiuzvgig4obehl3e5fqqwq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
03c0b10be2c560acd4c9772a9fb19c271ee143592ec316c580a3b4a6e433a219
GuLoader
1875b7fa5fb3b439c6761a821b5b6c3fc060ba2010578e84736c2cd58585abe9
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1d3e8941eb686b154fca77b2c80b84a19fdf21ebd298dc55d4519310ed011add
GuLoader
296d3276af7f064b6e29fd453f3273c4fbf7d47d5afa4a2ecb80b594467d85df
GuLoader
57db1a9611191d01fbe260f052e87a6fb0cf7dbb1644079727627252ee3e109a
GuLoader
5b1569630a8d68e7d915be129f136ec83f52d9fd3428fedac5cb4627ff298e42
GuLoader
90903410062ac828233bd91ed1adb4781ba522a6131b19330bcd8ef7c791672b
GuLoader
d3a66173013a037b63d6ab4eb79916bb7e32cea117a3a12ed823f1f41ee69ce2
GuLoader
d418b33e0f47d43fcc31e623c7c2b581aa9df51fb47a15414a8bb45b009f813b
GuLoader
ef98f88e2af062e52962b309ec92736c485ce509e6319271cdde46e030455b5b
GuLoader
+ 122 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/221103-pt27qsceap/
Behaviour
Enumerates physical storage devices
Checks installed software on the system
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5be9d473-e388-49a6-99d6-8b96543f0a05
Unpacked files
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
Link:
https://www.unpac.me/results/e51a278b-de6f-49d3-a03a-635d170d5a3a/
SH256 hash:
e504cb27581e7e2bf9f32203245d8a2d00451808a66a641b8e090ebd93a5842d
MD5 hash:
e981714c994690235939894502537855
SHA1 hash:
2389bdd4adae46bf00cd02ec4311ef7674de9418
Link:
https://www.unpac.me/results/e51a278b-de6f-49d3-a03a-635d170d5a3a/
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/e504cb27581e7e2bf9f32203245d8a2d00451808a66a641b8e090ebd93a5842d

File information

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

Malspam

GuLoader

Executable exe e504cb27581e7e2bf9f32203245d8a2d00451808a66a641b8e090ebd93a5842d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/327942/

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