MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 26809236fa3db2204c9a400efb77b5351b002daeb6db92267265ea4d05fb4801. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 26809236fa3db2204c9a400efb77b5351b002daeb6db92267265ea4d05fb4801
SHA3-384 hash: 36c823a765f9685368e52b267302343ab234d5988034bfe06c42020f1003ff1889bfb45795b05a6ad270d636f473c387
SHA1 hash: fdd43322943b029bb4be14b778468155579850e3
MD5 hash: f9bf035d10d5e165260e82a58f820b2b
humanhash: grey-mountain-failed-april
File name:06 crypt.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:309'624 bytes
First seen:2022-09-09 15:17:46 UTC
Last seen:2022-09-09 15:58:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4ea4df5d94204fc550be1874e1b77ea7 (241 x GuLoader, 29 x RemcosRAT, 17 x VIPKeylogger)
ssdeep 6144:YB+pgUHj4qtMtsSoaqeV4rakx2gX9BcQGQ:YgP0q6WSoqHkxNtVGQ
TLSH T12D64E006BE80D527C8A14B714E26D2726F78BD56AEA0831737C1BF9F3D7E182598E341
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 9042c09bc6760c21 (1 x GuLoader)
Reporter GovCERT_CH
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Ergometres kontaktleds Pamphletizing
Issuer:Ergometres kontaktleds Pamphletizing
Algorithm:sha256WithRSAEncryption
Valid from:2022-07-25T20:11:14Z
Valid to:2025-07-24T20:11:14Z
Serial number: 341fd8db15a4cab0
Thumbprint Algorithm:SHA256
Thumbprint: 769b80ccc0c7ada4f42275f4f5c8038214ea6e4a500aa55589943d09a1dc44d2
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
448
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
06 crypt.exe
Verdict:
Malicious activity
Analysis date:
2022-09-09 15:18:12 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/57859094-c2b7-41f3-b034-54617be4f0e1

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/309013/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.61814472.29658.31727.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file in the %AppData% subdirectories
Searching for the window
Delayed reading of the file
Creating a file
Searching for the Windows task manager window
Running batch commands
Creating a process with a hidden window
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/37221/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/631b5941705d49fc19d395fa/reports/f453c92b-6247-45cb-808a-175e76fc7c1f/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/d3fe9c76-547a-43e7-bdc0-a347eddbb670
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1067860
Signature
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
Mass process execution to delay analysis
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Obfuscated command line found
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)
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: 700392 Sample: 06 crypt.exe Startdate: 09/09/2022 Architecture: WINDOWS Score: 100 53 www.predictablemastery.com 2->53 55 www.nidwate.info 2->55 57 19 other IPs or domains 2->57 67 Snort IDS alert for network traffic 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 Multi AV Scanner detection for submitted file 2->71 73 7 other signatures 2->73 10 06 crypt.exe 5 34 2->10         started        signatures3 process4 file5 47 C:\Users\user\...\System.Threading.Tasks.dll, PE32 10->47 dropped 49 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 10->49 dropped 51 C:\Users\user\AppData\Local\...\System.dll, PE32 10->51 dropped 85 Obfuscated command line found 10->85 87 Tries to detect Any.run 10->87 14 06 crypt.exe 6 10->14         started        18 cmd.exe 10->18         started        20 cmd.exe 10->20         started        22 62 other processes 10->22 signatures6 process7 dnsIp8 65 5.161.151.88, 49795, 80 HETZNER-ASDE Germany 14->65 89 Modifies the context of a thread in another process (thread injection) 14->89 91 Tries to detect Any.run 14->91 93 Maps a DLL or memory area into another process 14->93 95 2 other signatures 14->95 24 RAVCpl64.exe 14->24 injected 26 Conhost.exe 18->26         started        28 Conhost.exe 20->28         started        30 Conhost.exe 22->30         started        32 Conhost.exe 22->32         started        34 Conhost.exe 22->34         started        36 59 other processes 22->36 signatures9 process10 process11 38 rundll32.exe 13 24->38         started        signatures12 75 Tries to steal Mail credentials (via file / registry access) 38->75 77 Tries to harvest and steal browser information (history, passwords, etc) 38->77 79 Writes to foreign memory regions 38->79 81 3 other signatures 38->81 41 explorer.exe 38->41 injected 45 firefox.exe 38->45         started        process13 dnsIp14 59 www.nidwate.info 67.223.117.20, 49826, 49827, 49828 VIMRO-AS15189US United States 41->59 61 www.predictablemastery.com 216.40.34.41, 49830, 49831, 49832 TUCOWSCA Canada 41->61 63 16 other IPs or domains 41->63 83 System process connects to network (likely due to code injection or exploit) 41->83 signatures15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/26809236fa3db2204c9a400efb77b5351b002daeb6db92267265ea4d05fb4801/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2022-09-06 15:15:51 UTC
File Type:
PE (Exe)
Extracted files:
7
AV detection:
14 of 26 (53.85%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=e2ajenx2hwzcate2iahpw55vgunqalnow3nzejtsmxve2bp3jaaq._file
Verdict:
malicious
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/220909-spk97sgdg2/
Behaviour
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Checks installed software on the system
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7
MD5 hash:
c5b9fe538654a5a259cf64c2455c5426
SHA1 hash:
db45505fa041af025de53a0580758f3694b9444a
Link:
https://www.unpac.me/results/1e3aa2ee-c28f-4f04-aaae-995e34b6f729/
SH256 hash:
bcc4eb498d801a17ab1f7e42b2b322dcb4f3d8618bbc468690f18041489484e0
MD5 hash:
2ececd694074676e36f70659a684bdb0
SHA1 hash:
9364c9b33318eef1a7346886d85024b3410cfbc9
Link:
https://www.unpac.me/results/1e3aa2ee-c28f-4f04-aaae-995e34b6f729/
SH256 hash:
2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc
MD5 hash:
a4dd044bcd94e9b3370ccf095b31f896
SHA1 hash:
17c78201323ab2095bc53184aa8267c9187d5173
Link:
https://www.unpac.me/results/1e3aa2ee-c28f-4f04-aaae-995e34b6f729/
SH256 hash:
8c6a95a1bf06c22224ab43bc1a1948f2cb0fd8d7089f2b828033c0fde161d2c2
MD5 hash:
d5bf01b2a316120d3d906e48e850520e
SHA1 hash:
a0e2f1caca1d35c227d231e6063d71ffe1d06322
Link:
https://www.unpac.me/results/1e3aa2ee-c28f-4f04-aaae-995e34b6f729/
SH256 hash:
26809236fa3db2204c9a400efb77b5351b002daeb6db92267265ea4d05fb4801
MD5 hash:
f9bf035d10d5e165260e82a58f820b2b
SHA1 hash:
fdd43322943b029bb4be14b778468155579850e3
Link:
https://www.unpac.me/results/1e3aa2ee-c28f-4f04-aaae-995e34b6f729/
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/26809236fa3db2204c9a400efb77b5351b002daeb6db92267265ea4d05fb4801

File information

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

Malspam

GuLoader

Executable exe 26809236fa3db2204c9a400efb77b5351b002daeb6db92267265ea4d05fb4801

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/309013/

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