MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1142e155bc97b08b5ba6d8997986c6c59d5a6d29428183f62f4c83fed07e3ff. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b1142e155bc97b08b5ba6d8997986c6c59d5a6d29428183f62f4c83fed07e3ff
SHA3-384 hash: d33292cebe6c20c23db55587087fa9fe0c4d665e6749921ea6f8f9e4f33df23e029f9c08e281505e4abd186cc6d3ef20
SHA1 hash: 9ff20e7647cd5266e66b91c0cb83fd2437267e18
MD5 hash: 3ebca53b73333a948c75ca97bc6bd83b
humanhash: magazine-two-india-nebraska
File name:3ebca53b73333a948c75ca97bc6bd83b
Download: download sample
Signature GuLoader
Create hunting rule
File size:267'008 bytes
First seen:2022-09-21 04:47:53 UTC
Last seen:2022-09-21 07:43:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (525 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 6144:ZRlWoFJYDBFFNPGdHQcaf7QMEMvoPGLBEciYY8FqI4Cv:rkDB1iHwELGVt3vv
Threatray 2'957 similar samples on MalwareBazaar
TLSH T19944F112327CC4D2C7950B389C368EB5D5BBBE176AA51B0B57607BBE35322B38518F18
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 8c03f09cec7082d4 (8 x GuLoader)
Reporter zbetcheckin
Tags:32 exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-05-27T11:03:06Z
Valid to:2025-05-26T11:03:06Z
Serial number: -4424aed6bee7972d
Thumbprint Algorithm:SHA256
Thumbprint: 687f715229fc396cc3ca87378b555244d5bc93b3a39bebcde44b5d7c3e98bb86
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
518
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3ebca53b73333a948c75ca97bc6bd83b
Verdict:
Malicious activity
Analysis date:
2022-09-21 04:50:50 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c4db6674-aa96-458a-8acf-2598d06001aa

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/311897/
Detection(s):
SecuriteInfo.com.Win32.Evo-gen.29681.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Creating a file in the %temp% subdirectories
Searching for the window
Searching for the Windows task manager window
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/38343/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/632a980336ba812561a6203c/reports/107c20dc-c10f-4850-ae3b-2ea34a34ffea/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/818ab5a9-fdcc-4d1a-9543-e5b53208b57d
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1074267
Signature
Antivirus detection for dropped file
Installs a global keyboard hook
Mass process execution to delay analysis
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 706809 Sample: 6PHBDn7buC.exe Startdate: 21/09/2022 Architecture: WINDOWS Score: 100 139 amegroupofschoos32.sytes.net 2->139 141 geoplugin.net 2->141 149 Multi AV Scanner detection for domain / URL 2->149 151 Antivirus detection for dropped file 2->151 153 Multi AV Scanner detection for submitted file 2->153 155 2 other signatures 2->155 12 6PHBDn7buC.exe 1 36 2->12         started        16 dos.exe 2->16         started        18 dos.exe 2->18         started        signatures3 process4 file5 123 C:\Users\user\AppData\Roaming\...\Office.dll, PE32 12->123 dropped 125 C:\Users\user\AppData\...\BtTray.Toolkit.dll, PE32+ 12->125 dropped 127 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 12->127 dropped 129 C:\Users\user\AppData\Local\...\System.dll, PE32 12->129 dropped 167 Mass process execution to delay analysis 12->167 169 Tries to detect Any.run 12->169 171 Sample uses process hollowing technique 12->171 20 6PHBDn7buC.exe 12->20         started        25 powershell.exe 12->25         started        27 powershell.exe 12->27         started        33 127 other processes 12->33 131 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 16->131 dropped 133 C:\Users\user\AppData\Local\...\System.dll, PE32 16->133 dropped 29 WerFault.exe 16->29         started        135 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 18->135 dropped 137 C:\Users\user\AppData\Local\...\System.dll, PE32 18->137 dropped 31 WerFault.exe 18->31         started        signatures6 process7 dnsIp8 143 85.31.46.80, 49769, 49773, 80 CLOUDCOMPUTINGDE Germany 20->143 113 C:\Users\user\AppData\Roaming\dos.exe, PE32 20->113 dropped 115 C:\Users\user\...\dos.exe:Zone.Identifier, ASCII 20->115 dropped 117 C:\Users\user\AppData\Local\...\install.vbs, data 20->117 dropped 157 Tries to detect Any.run 20->157 35 wscript.exe 20->35         started        37 conhost.exe 25->37         started        47 3 other processes 25->47 39 conhost.exe 27->39         started        49 3 other processes 27->49 41 conhost.exe 33->41         started        43 conhost.exe 33->43         started        45 conhost.exe 33->45         started        51 201 other processes 33->51 file9 signatures10 process11 process12 53 cmd.exe 35->53         started        55 3 other processes 37->55 57 2 other processes 39->57 59 3 other processes 41->59 61 4 other processes 43->61 63 3 other processes 45->63 65 4 other processes 47->65 67 4 other processes 49->67 69 119 other processes 51->69 process13 71 dos.exe 53->71         started        75 conhost.exe 53->75         started        77 conhost.exe 55->77         started        83 2 other processes 57->83 85 3 other processes 59->85 87 2 other processes 61->87 79 conhost.exe 63->79         started        81 conhost.exe 65->81         started        89 36 other processes 69->89 file14 119 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 71->119 dropped 121 C:\Users\user\AppData\Local\...\System.dll, PE32 71->121 dropped 159 Tries to detect Any.run 71->159 161 Sample uses process hollowing technique 71->161 91 dos.exe 71->91         started        95 conhost.exe 79->95         started        97 conhost.exe 89->97         started        99 conhost.exe 89->99         started        101 conhost.exe 89->101         started        103 6 other processes 89->103 signatures15 process16 dnsIp17 145 amegroupofschoos32.sytes.net 81.161.229.136, 4820, 49775 CMCSUS Germany 91->145 147 geoplugin.net 178.237.33.50, 49776, 80 ATOM86-ASATOM86NL Netherlands 91->147 163 Tries to detect Any.run 91->163 165 Installs a global keyboard hook 91->165 105 conhost.exe 95->105         started        107 conhost.exe 97->107         started        109 conhost.exe 99->109         started        111 conhost.exe 101->111         started        signatures18 process19
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b1142e155bc97b08b5ba6d8997986c6c59d5a6d29428183f62f4c83fed07e3ff/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2022-09-20 04:51:45 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wekc4fk3zf5qrnn2nwezpgdmnrm5ljwssqubqp3c6ted73ih4p7q._file
Verdict:
malicious
Similar samples:
088999945f71cb731f4fa4d6e73591ecdf1829306a6dca66be75947fc0c8d00b
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6b1df4cb218093a57a5646f0d6ece41d548fae6cce51d90d1540686d747069b6
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a89c531ad157965de03cf15ab2783f0b24e6db0981556a7bf5ad8fe5c7d66ef5
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b5bcbfe8ba02879ac963d4f9ed48203c934e80edb58b814129ad836544f2c3a3
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d87e7752ee36b46b902d88317b5c5b172927760a4f171c95f812991ec62ae963
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ed20ff85f5df587140e0780e16a5eb28df94e1b6330c8256de39d94b5a772e83
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f857890d674a9d4abd8ef6d735c7c03eef0a75777c64cb4a62917d12b68dcbfa
GuLoader
+ 2'947 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/220921-fe5jwafba4/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Loads dropped DLL
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2eba022e-d361-4182-8fd6-34eb6cfadd42
Unpacked files
SH256 hash:
8bdd996ae4778c6f829e2bcb651c55efc9ec37eeea17d259e013b39528dddbb6
MD5 hash:
3d366250fcf8b755fce575c75f8c79e4
SHA1 hash:
2ebac7df78154738d41aac8e27d7a0e482845c57
Link:
https://www.unpac.me/results/924beeb5-8011-45be-a59d-4195b0959dcb/
SH256 hash:
9fae3524cf580259336f307bc46247580917ba44883ff33b0411638b175d4ca3
MD5 hash:
b8f12651b202ba487210d3c244550044
SHA1 hash:
ede544c504f8049bd106e48a9a5472257f0b6704
Link:
https://www.unpac.me/results/924beeb5-8011-45be-a59d-4195b0959dcb/
SH256 hash:
bb7e367bee3e91651d444db3c2f0997de914650547c66473bb201a2724d49196
MD5 hash:
6ea4aa54a7837e790c0b822dc8c27cd6
SHA1 hash:
1ed173163c496c482b36ef737fb6832e2b82cb6e
Link:
https://www.unpac.me/results/924beeb5-8011-45be-a59d-4195b0959dcb/
SH256 hash:
65dafcd834b02f68a1fa3ae3f8a80c42899466e54d0530492918c6c45a5c7f6f
MD5 hash:
08136819c94d6859a0712afa022761c3
SHA1 hash:
97c80b087bf6da0bc0ce1ada96d3d5285a335703
Link:
https://www.unpac.me/results/924beeb5-8011-45be-a59d-4195b0959dcb/
SH256 hash:
b1142e155bc97b08b5ba6d8997986c6c59d5a6d29428183f62f4c83fed07e3ff
MD5 hash:
3ebca53b73333a948c75ca97bc6bd83b
SHA1 hash:
9ff20e7647cd5266e66b91c0cb83fd2437267e18
Link:
https://www.unpac.me/results/924beeb5-8011-45be-a59d-4195b0959dcb/
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/b1142e155bc97b08b5ba6d8997986c6c59d5a6d29428183f62f4c83fed07e3ff

File information

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

Web download

GuLoader

Executable exe b1142e155bc97b08b5ba6d8997986c6c59d5a6d29428183f62f4c83fed07e3ff

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2308754/
Cape
Cape
https://www.capesandbox.com/analysis/311897/

Comments


Avatar
zbet commented on 2022-09-21 04:47:56 UTC

url : hxxp://192.3.173.102/UUG.exe