MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1d553ac8ec0a334e66ef3e6882b0273408cda75e2601460bf2bab8d6541cf289. 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: 1d553ac8ec0a334e66ef3e6882b0273408cda75e2601460bf2bab8d6541cf289
SHA3-384 hash: b12d6d5184f9a346c495ed749e7340dad534be7a80f9e974a3941c25be2397525e9d87856547ab89a61339696f983575
SHA1 hash: 59f685211e42a8a2e5a57000e6538c9332fb17f7
MD5 hash: 6c33645c12ef02fe6d8b44ae5811bdf4
humanhash: carolina-zebra-green-beryllium
File name:Polinices.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:276'335 bytes
First seen:2023-05-03 10:43:46 UTC
Last seen:2023-05-03 11:41:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 93dfc16ed07ebeb5b405221f10d12c0e (30 x GuLoader, 4 x RemcosRAT, 1 x AgentTesla)
ssdeep 6144:a4E6JRqVYt7R3mLjWFxAZFqnmRxpuC4O73F8gztOMbu0:a4EVU7R3mLjy2Qn3OWMbj
Threatray 15 similar samples on MalwareBazaar
TLSH T14B44024086B484E7FC6B0170787AAB072F27BE2EA8A1970B57967D4898733C3553B44F
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b42549516949694d (7 x Formbook, 3 x GuLoader)
Reporter abuse_ch
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
2
# of downloads :
249
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Polinices.exe
Verdict:
Malicious activity
Analysis date:
2023-05-03 10:45:23 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/98778fb2-f331-46af-ac83-61dd7eb00bd5

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/386224/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.65654348.12714.15662.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% subdirectories
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Searching for the Windows task manager window
Launching a process
Creating a process with a hidden window
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/82284/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
guloader overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/64523af51facab193c6734ae/reports/b6c3db11-7d55-4396-b674-4556f53a38b2/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/1d553ac8ec0a334e66ef3e6882b0273408cda75e2601460bf2bab8d6541cf289
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/54d995f5-fd1f-42a0-ac04-db219af7c3c9
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1225246
Signature
Antivirus / Scanner detection for submitted sample
Mass process execution to delay analysis
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: 858209 Sample: Polinices.exe Startdate: 03/05/2023 Architecture: WINDOWS Score: 88 40 www.velvetplayground.com.au 2->40 42 velvetplayground.com.au 2->42 46 Antivirus / Scanner detection for submitted sample 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 Yara detected GuLoader 2->50 52 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 2->52 8 Polinices.exe 31 2->8         started        signatures3 process4 file5 34 C:\Users\user\AppData\...\Forsknnelsen.Rhi, data 8->34 dropped 36 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 8->36 dropped 38 C:\Users\user\AppData\Local\...\System.dll, PE32 8->38 dropped 54 Mass process execution to delay analysis 8->54 56 Tries to detect Any.run 8->56 58 Sample uses process hollowing technique 8->58 12 Polinices.exe 8->12         started        16 powershell.exe 8->16         started        18 powershell.exe 8->18         started        20 71 other processes 8->20 signatures6 process7 dnsIp8 44 velvetplayground.com.au 162.241.149.193, 443, 49817, 49819 UNIFIEDLAYER-AS-1US United States 12->44 60 Tries to detect Any.run 12->60 22 conhost.exe 16->22         started        24 conhost.exe 18->24         started        26 conhost.exe 20->26         started        28 conhost.exe 20->28         started        30 conhost.exe 20->30         started        32 68 other processes 20->32 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1d553ac8ec0a334e66ef3e6882b0273408cda75e2601460bf2bab8d6541cf289/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2023-02-24 02:25:39 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
23 of 37 (62.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dvktvshmbizu4zxphzuifmbhgqem3j26eyaumc7sxk4nmva46keq._file
Verdict:
malicious
Similar samples:
02873a5d57569be2c4eb7a7b31addacde749430980185cda9c6cbc577ba3f881
GuLoader
1390ffaba8428295de1c41cb39358e5de9ab79868b1f79a6697fd9e72e23e6ee
GuLoader
1cd3cee13fd4653e084327ebf599147a9bcddf5213b332ae928f63f551d3b3f0
GuLoader
772308b9e65e5533176a0b3575bd922d7612209479652ba78849f29bf1d8f30d
GuLoader
80ba5d77bf23701d83f91b9158e5b3ba36e01c83f2b2469aada56e81a428a224
GuLoader
920fe160ef3a22e69e296128b12731811355dec4de30b234ec133c27947f8945
GuLoader
b65f37c2f7def47bd57ae2837b9c422113da608c3b37a80f62e0332fb717546f
GuLoader
b98d60109c9ccfaac33c719992c026b59e3bc54bbe9fe24bc0fecaa016a02959
GuLoader
d379ffe32dfb2d6d386b6d9c3cbae49e49241ac25a14d2974c286bfa45aa50b9
GuLoader
f65e518f76a18d65bdc59a8e942cb1ff660568440f3abe7b312be1de4b8330c8
GuLoader
+ 5 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230503-mss7bsgb7z/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks QEMU agent file
Loads dropped DLL
Unpacked files
SH256 hash:
ec156cb0f64588f8c34a7d45c57b250779143cf3816081829810a017f0cf966f
MD5 hash:
b3017435b63a99f6a3037cfe0c7c8b1e
SHA1 hash:
41a582b60f099b65f95ac64e1a5cdce0356a6b6f
Link:
https://www.unpac.me/results/39cc0eae-e2a5-4cd2-9869-9bc552f5bd05/
SH256 hash:
73b3c3049f600bcc4d0b294af28a876bf42379e69cd3abe4543488ffe3a10a7e
MD5 hash:
f9c0cf5c59a6b29c63e30b2e337ce8d1
SHA1 hash:
8ba518b7f72c66b9efb532e78431cb04427295e7
Link:
https://www.unpac.me/results/39cc0eae-e2a5-4cd2-9869-9bc552f5bd05/
SH256 hash:
9352c8971d0046a5526da1889f841eab8ef695e4786b6656f06af289cf32de44
MD5 hash:
402792a47412801287bc610a15cd6076
SHA1 hash:
f2990ac9e903bec596266bf1a1c340ec90ed4ee6
Link:
https://www.unpac.me/results/39cc0eae-e2a5-4cd2-9869-9bc552f5bd05/
SH256 hash:
1d553ac8ec0a334e66ef3e6882b0273408cda75e2601460bf2bab8d6541cf289
MD5 hash:
6c33645c12ef02fe6d8b44ae5811bdf4
SHA1 hash:
59f685211e42a8a2e5a57000e6538c9332fb17f7
Link:
https://www.unpac.me/results/39cc0eae-e2a5-4cd2-9869-9bc552f5bd05/
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/1d553ac8ec0a334e66ef3e6882b0273408cda75e2601460bf2bab8d6541cf289

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/386224/

Comments