MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 978d41eb58d330a1d7a400bfbfd6b5f1bac073ce5da85671942e80699919a871. 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: 978d41eb58d330a1d7a400bfbfd6b5f1bac073ce5da85671942e80699919a871
SHA3-384 hash: 8a49dbc5182fd2eedeca027c20c2b2f5151c4a021f66f9b59ca69e220743f162a656340f537266e7dc194f6a636a7f49
SHA1 hash: 25e3fcaeebb28964b26a5e83917e617cf69c0bed
MD5 hash: fe5fc7f64d2dd840dc6fe1801d66b79a
humanhash: oxygen-triple-beryllium-artist
File name:fe5fc7f64d2dd840dc6fe1801d66b79a
Download: download sample
Signature GuLoader
Create hunting rule
File size:273'488 bytes
First seen:2022-09-21 05:07:00 UTC
Last seen:2022-09-21 07:43:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (525 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 6144:SRlWoFJYRFtJU95hjbjXfSacaNIqMvr4nGLBEciYY8FqI45:KkRTuD1jPSA6qfnGVt3W
Threatray 2'955 similar samples on MalwareBazaar
TLSH T1D744F11032BCC0D6D3A90B7D4C2689F2D56BBD176DA1170B5B60BBAD78326B3852CF85
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

Intelligence

File Origin
# of uploads :
2
# of downloads :
494
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
fe5fc7f64d2dd840dc6fe1801d66b79a
Verdict:
Malicious activity
Analysis date:
2022-09-21 05:09:20 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a54dc5b8-ccd2-4435-b9ee-1eb468a5ff07

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/311899/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.62205730.770.30305.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
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
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/38345/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/632a9c39e64c53f047f9eef2/reports/45b66d6c-d8cb-49b6-b804-5bcf7e936204/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/23bede44-6fd7-41c8-a96d-801c99139e3b
Result
Threat name:
GuLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1074271
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 dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected GuLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 706813 Sample: aKHcmZb0xJ.exe Startdate: 21/09/2022 Architecture: WINDOWS Score: 100 134 mekremcos23.freedynamicdns.net 2->134 136 geoplugin.net 2->136 146 Multi AV Scanner detection for domain / URL 2->146 148 Antivirus detection for dropped file 2->148 150 Multi AV Scanner detection for submitted file 2->150 152 3 other signatures 2->152 12 aKHcmZb0xJ.exe 1 32 2->12         started        16 dos.exe 2->16         started        signatures3 process4 file5 122 C:\Users\user\AppData\...\BtTray.Toolkit.dll, PE32+ 12->122 dropped 124 C:\Users\user\AppData\Roaming\...\Office.dll, PE32 12->124 dropped 126 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 12->126 dropped 128 C:\Users\user\AppData\Local\...\System.dll, PE32 12->128 dropped 166 Mass process execution to delay analysis 12->166 168 Tries to detect Any.run 12->168 18 aKHcmZb0xJ.exe 12->18         started        23 powershell.exe 12->23         started        25 powershell.exe 12->25         started        29 126 other processes 12->29 130 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 16->130 dropped 132 C:\Users\user\AppData\Local\...\System.dll, PE32 16->132 dropped 27 WerFault.exe 16->27         started        signatures6 process7 dnsIp8 138 85.31.46.80, 49764, 49777, 80 CLOUDCOMPUTINGDE Germany 18->138 112 C:\Users\user\AppData\Roaming\dos.exe, PE32 18->112 dropped 114 C:\Users\user\...\dos.exe:Zone.Identifier, ASCII 18->114 dropped 116 C:\Users\user\AppData\Local\...\install.vbs, data 18->116 dropped 156 Tries to detect Any.run 18->156 31 wscript.exe 18->31         started        33 conhost.exe 18->33         started        35 conhost.exe 23->35         started        38 conhost.exe 25->38         started        46 3 other processes 25->46 40 conhost.exe 29->40         started        42 conhost.exe 29->42         started        44 conhost.exe 29->44         started        48 220 other processes 29->48 file9 signatures10 process11 signatures12 50 cmd.exe 31->50         started        60 3 other processes 31->60 154 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 35->154 52 conhost.exe 35->52         started        54 conhost.exe 38->54         started        56 conhost.exe 40->56         started        62 3 other processes 42->62 64 3 other processes 44->64 58 conhost.exe 46->58         started        66 99 other processes 48->66 process13 process14 68 dos.exe 50->68         started        72 conhost.exe 50->72         started        74 conhost.exe 54->74         started        76 conhost.exe 56->76         started        78 conhost.exe 56->78         started        80 conhost.exe 60->80         started        82 conhost.exe 62->82         started        84 2 other processes 64->84 86 28 other processes 66->86 file15 118 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 68->118 dropped 120 C:\Users\user\AppData\Local\...\System.dll, PE32 68->120 dropped 158 Multi AV Scanner detection for dropped file 68->158 160 Tries to detect Any.run 68->160 88 dos.exe 68->88         started        92 conhost.exe 68->92         started        94 conhost.exe 76->94         started        96 conhost.exe 76->96         started        98 conhost.exe 76->98         started        100 conhost.exe 82->100         started        102 conhost.exe 86->102         started        104 conhost.exe 86->104         started        106 3 other processes 86->106 signatures16 process17 dnsIp18 140 mekremcos23.freedynamicdns.net 81.161.229.187, 2397, 49778 CMCSUS Germany 88->140 142 geoplugin.net 178.237.33.50, 49779, 80 ATOM86-ASATOM86NL Netherlands 88->142 144 192.168.11.1 unknown unknown 88->144 162 Tries to detect Any.run 88->162 164 Installs a global keyboard hook 88->164 108 conhost.exe 92->108         started        110 conhost.exe 102->110         started        signatures19 process20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/978d41eb58d330a1d7a400bfbfd6b5f1bac073ce5da85671942e80699919a871/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2022-09-20 08:42:23 UTC
AV detection:
6 of 41 (14.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=s6gud22y2mykdv5eac737vvv6g5ma46olwufm4muf2agtgizvbyq._file
Verdict:
malicious
Similar samples:
088999945f71cb731f4fa4d6e73591ecdf1829306a6dca66be75947fc0c8d00b
GuLoader
60952b7b0b3edeb47b07f1d2a0fb87856b165550e47c605c4ef4fb1da699a332
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6b1df4cb218093a57a5646f0d6ece41d548fae6cce51d90d1540686d747069b6
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8f4d63fea00eca6d91147de6a10b7aae6069f164ef00d5986eff571249552dae
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9fff2ab375e26431e4cd6f35aa3b1446a4cba8ec78d0bd61bde694ee6474ded4
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a89c531ad157965de03cf15ab2783f0b24e6db0981556a7bf5ad8fe5c7d66ef5
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b5bcbfe8ba02879ac963d4f9ed48203c934e80edb58b814129ad836544f2c3a3
GuLoader
d87e7752ee36b46b902d88317b5c5b172927760a4f171c95f812991ec62ae963
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ed20ff85f5df587140e0780e16a5eb28df94e1b6330c8256de39d94b5a772e83
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f857890d674a9d4abd8ef6d735c7c03eef0a75777c64cb4a62917d12b68dcbfa
GuLoader
+ 2'945 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/220921-frz5xsfbf5/
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/32e3a2b7-0812-4c0f-95d7-b25d9f90768b
Unpacked files
SH256 hash:
8bdd996ae4778c6f829e2bcb651c55efc9ec37eeea17d259e013b39528dddbb6
MD5 hash:
3d366250fcf8b755fce575c75f8c79e4
SHA1 hash:
2ebac7df78154738d41aac8e27d7a0e482845c57
Link:
https://www.unpac.me/results/5ebd82be-c491-42b5-871b-0f89641d7edf/
SH256 hash:
9fae3524cf580259336f307bc46247580917ba44883ff33b0411638b175d4ca3
MD5 hash:
b8f12651b202ba487210d3c244550044
SHA1 hash:
ede544c504f8049bd106e48a9a5472257f0b6704
Link:
https://www.unpac.me/results/5ebd82be-c491-42b5-871b-0f89641d7edf/
SH256 hash:
65dafcd834b02f68a1fa3ae3f8a80c42899466e54d0530492918c6c45a5c7f6f
MD5 hash:
08136819c94d6859a0712afa022761c3
SHA1 hash:
97c80b087bf6da0bc0ce1ada96d3d5285a335703
Link:
https://www.unpac.me/results/5ebd82be-c491-42b5-871b-0f89641d7edf/
SH256 hash:
bb7e367bee3e91651d444db3c2f0997de914650547c66473bb201a2724d49196
MD5 hash:
6ea4aa54a7837e790c0b822dc8c27cd6
SHA1 hash:
1ed173163c496c482b36ef737fb6832e2b82cb6e
Link:
https://www.unpac.me/results/5ebd82be-c491-42b5-871b-0f89641d7edf/
SH256 hash:
978d41eb58d330a1d7a400bfbfd6b5f1bac073ce5da85671942e80699919a871
MD5 hash:
fe5fc7f64d2dd840dc6fe1801d66b79a
SHA1 hash:
25e3fcaeebb28964b26a5e83917e617cf69c0bed
Link:
https://www.unpac.me/results/5ebd82be-c491-42b5-871b-0f89641d7edf/
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/978d41eb58d330a1d7a400bfbfd6b5f1bac073ce5da85671942e80699919a871

File information

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

Web download

GuLoader

Executable exe 978d41eb58d330a1d7a400bfbfd6b5f1bac073ce5da85671942e80699919a871

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2308781/
Cape
Cape
https://www.capesandbox.com/analysis/311899/

Comments


Avatar
zbet commented on 2022-09-21 05:07:05 UTC

url : hxxp://192.3.173.102/MMN.exe