MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a30f84c5fc555603a11244bf58e1a01bacfc09047068f942d48d674a1375c6d. 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


RemcosRAT


Vendor detections: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a30f84c5fc555603a11244bf58e1a01bacfc09047068f942d48d674a1375c6d
SHA3-384 hash: 76ca8ac5d4bfd2ab5945c158fba7da72f4075d50825cd0b364f8eecf3d178a1e901a309446d8a235de28afcaaea4e16b
SHA1 hash: 91d543054f3fb15f5ca7ce2ff0b447b548d7a90b
MD5 hash: f80d07045b8aba5de2ba621910e001ac
humanhash: idaho-ceiling-magazine-hydrogen
File name:ERK MÜH.-12730-0509.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:396'720 bytes
First seen:2023-09-07 16:13:33 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d4b94e8ee3f620a89d114b9da4b31873 (90 x GuLoader, 18 x njrat, 9 x RemcosRAT)
ssdeep 6144:IqaFH+9KGmy45F3aK5/FnSHKqcnHfuPodNgDzBQxCrjNqms5IbPhalnKay:I5Lvh59j/FnLqSHfnNMdrjNm5IUlnKD
Threatray 2'570 similar samples on MalwareBazaar
TLSH T1CD84E1117714DC07E313527485E0EBB88B68BFE41D968A56A7FA3DAB3418B93FC18391
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 d6d8dcd4ecf8fcd6 (2 x RemcosRAT, 2 x GuLoader)
Reporter abuse_ch
Tags:exe RAT RemcosRAT signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2023-02-23T04:36:21Z
Valid to:2026-02-22T04:36:21Z
Serial number: 74e6fe2cd423cf8b7f47a5f87bf60b321228b929
Thumbprint Algorithm:SHA256
Thumbprint: 759de9f64ad07fbacb9e7dc7c230eba25f0cde531d43778218505591f868dac0
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
294
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ERK MÜH.-12730-0509.exe
Verdict:
Suspicious activity
Analysis date:
2023-09-07 16:21:35 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7166d1bf-60d9-4fd0-9454-66dcbbb40f2e

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/447222/
Detection(s):
SecuriteInfo.com.W32.Trojan.KCQQ-4614.26037.5337.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Delayed reading of the file
Sending a custom TCP request
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/64f9f6cc67511af1a1b6172f/reports/66daaac9-6092-4da4-83fe-fb6263880b7c/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/4a30f84c5fc555603a11244bf58e1a01bacfc09047068f942d48d674a1375c6d
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/55f67cd5-c798-486d-b051-8fe5c5a21efe
Result
Threat name:
GuLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad.phis.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1305609
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to modify clipboard data
Found malware configuration
Installs a global keyboard hook
Maps a DLL or memory area into another process
Snort IDS alert for network traffic
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 Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected GuLoader
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1305609 Sample: ERK_M#U00dcH.-12730-0509.exe Startdate: 07/09/2023 Architecture: WINDOWS Score: 100 32 ourt2949aslumes9.duckdns.org 2->32 34 micasaab.com 2->34 36 geoplugin.net 2->36 50 Snort IDS alert for network traffic 2->50 52 Found malware configuration 2->52 54 Antivirus detection for URL or domain 2->54 56 9 other signatures 2->56 8 ERK_M#U00dcH.-12730-0509.exe 1 33 2->8         started        signatures3 process4 file5 24 C:\Users\user\AppData\Local\...\System.dll, PE32 8->24 dropped 26 C:\Users\user\AppData\Local\...\LangDLL.dll, PE32 8->26 dropped 58 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->58 60 Writes to foreign memory regions 8->60 62 Tries to detect Any.run 8->62 64 Maps a DLL or memory area into another process 8->64 12 wab.exe 4 16 8->12         started        signatures6 process7 dnsIp8 38 94.156.6.253, 2402, 49745, 49746 NET1-ASBG Bulgaria 12->38 40 micasaab.com 185.10.75.14, 49744, 80 IRANHOST-ASIR Iran (ISLAMIC Republic Of) 12->40 42 geoplugin.net 178.237.33.50, 49747, 80 ATOM86-ASATOM86NL Netherlands 12->42 28 C:\Users\user\AppData\Local\...\Bumpy.exe, PE32 12->28 dropped 30 C:\Users\user\AppData\Roaming\paqlgkfs.dat, data 12->30 dropped 66 Tries to detect Any.run 12->66 68 Maps a DLL or memory area into another process 12->68 70 Installs a global keyboard hook 12->70 17 wab.exe 1 12->17         started        20 wab.exe 1 12->20         started        22 wab.exe 2 12->22         started        file9 signatures10 process11 signatures12 44 Tries to steal Instant Messenger accounts or passwords 17->44 46 Tries to harvest and steal browser information (history, passwords, etc) 17->46 48 Tries to steal Mail credentials (via file / registry access) 20->48
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4a30f84c5fc555603a11244bf58e1a01bacfc09047068f942d48d674a1375c6d/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2023-09-07 10:19:50 UTC
File Type:
PE (Exe)
Extracted files:
7
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jiypqtc7yvkwaoqrerf7ldq2ag5m7qeqi4di7fbnjdlhjijxlrwq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
cloudeye
Create hunting rule
Similar samples:
456f09b71ed09cbc590f6a3b8d5aacc7f0fb94521d8b19b80d2a201e5f73b5a0
RemcosRAT
46f34cde2327b419337554aba74d7b380c82d8cfb761cb538d44b1c3e2447430
RemcosRAT
55eebc888e9151e28295587ff7c12c40f8b7ae5f23d29bac79c6444277940a6a
RemcosRAT
67334009d5d6fb492333a8d6a850b2c464654aaaf96ddeef125129af29ea3d66
RemcosRAT
846ae70abd97cfc15d14a0261e9c6c38643e071dddf73fafe3bc3e5d3769511b
RemcosRAT
b2823172397c389e1ff948bd03473193ed8527eb19edff06cbb16e2b43ebc19f
RemcosRAT
b2d5e15268cb130c995118e17afa1198ca19604a20b91f1907a7ef18210db30f
RemcosRAT
bad6dc695ec91155fbf548d43e3039c1b694db28c1a713b81ecc2d59674635cb
RemcosRAT
d184eebb08b5c307945c25f3f355a191802574b12449f707891ffd4697a84efd
RemcosRAT
+ 2'560 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader downloader persistence
Link:
https://tria.ge/reports/230907-tpm98sbe83/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks QEMU agent file
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27
MD5 hash:
ee260c45e97b62a5e42f17460d406068
SHA1 hash:
df35f6300a03c4d3d3bd69752574426296b78695
Link:
https://www.unpac.me/results/6d76448e-46be-49cc-bf59-24b245bf4841/
SH256 hash:
4a30f84c5fc555603a11244bf58e1a01bacfc09047068f942d48d674a1375c6d
MD5 hash:
f80d07045b8aba5de2ba621910e001ac
SHA1 hash:
91d543054f3fb15f5ca7ce2ff0b447b548d7a90b
Link:
https://www.unpac.me/results/6d76448e-46be-49cc-bf59-24b245bf4841/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4a30f84c5fc5/report/overview.html
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/4a30f84c5fc555603a11244bf58e1a01bacfc09047068f942d48d674a1375c6d

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Malspam

RemcosRAT

Executable exe 4a30f84c5fc555603a11244bf58e1a01bacfc09047068f942d48d674a1375c6d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/447222/

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