MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 bf91d37bfd0f032dbf4614463f27df2f38fea5ece588b79a06ba066be7d760bd. 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: 20
| SHA256 hash: | bf91d37bfd0f032dbf4614463f27df2f38fea5ece588b79a06ba066be7d760bd |
|---|---|
| SHA3-384 hash: | 03403512fc160ca15c679791c75def3f65e8bb5ff4a5511361850e4c28790d836f6e6458097909a3454f3cd77f91fc80 |
| SHA1 hash: | e1191f90aca02272942043c5d104e3a1af4fa2d8 |
| MD5 hash: | 1d17b1d2ea225b251b86724e489e15c3 |
| humanhash: | harry-fifteen-south-eighteen |
| File name: | bf91d37bfd0f032dbf4614463f27df2f38fea5ece588b79a06ba066be7d760bd |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 988'672 bytes |
| First seen: | 2025-10-09 15:09:54 UTC |
| Last seen: | 2025-11-06 10:02:51 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'813 x AgentTesla, 19'735 x Formbook, 12'282 x SnakeKeylogger) |
| ssdeep | 24576:72p1hn87NM7orCKrPaVwEohUu9KUMdRnStQN5:72RnzYtiVm9KUoRnStQH |
| Threatray | 273 similar samples on MalwareBazaar |
| TLSH | T1FA25128923A9EF02D0A51FF44970D77567B5AE9AB822D3050FEAACDF78387011C95393 |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10522/11/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Magika | pebin |
| Reporter |  adrian__luca |
| Tags: | exe RemcosRAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
80
Origin country :
HUVendor Threat Intelligence
Malware family:
remcos
ID:
1
File name:
bf91d37bfd0f032dbf4614463f27df2f38fea5ece588b79a06ba066be7d760bd.exe
Verdict:
Malicious activity
Analysis date:
2025-10-09 19:33:40 UTC
Tags:
remcos rat
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Verdict:
Malicious
Score:
99.1%
Tags:
virus krypt msil
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Creating a process from a recently created file
Connection attempt
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Verdict:
Malicious
Labled as:
Trojan.Generic
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-29T13:08:00Z UTC
Last seen:
2025-10-09T11:19:00Z UTC
Hits:
~1000
Malware family:
REMCOS
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Gathering data
Detection:
remcos
Verdict:
Malicious
Threat:
Family.REMCOS
Threat name:
ByteCode-MSIL.Trojan.PureLogStealer
Status:
Malicious
First seen:
2025-09-29 16:15:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
18 of 24 (75.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
suspicious
Label(s):
unc_loader_078
Similar samples:
+ 263 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos discovery persistence rat
Behaviour
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Remcos
Remcos family
Malware Config
C2 Extraction:
193.23.3.100:2404
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
bf91d37bfd0f032dbf4614463f27df2f38fea5ece588b79a06ba066be7d760bd
MD5 hash:
1d17b1d2ea225b251b86724e489e15c3
SHA1 hash:
e1191f90aca02272942043c5d104e3a1af4fa2d8
SH256 hash:
ba62e7e89557bb426f1813b06a062db822e8d0141e93936d132b58fd4382af44
MD5 hash:
9c25fef6456290916a73792f1e2f8e54
SHA1 hash:
3bc346d1f860801cf5aaed37014a2efca9170791
SH256 hash:
486ac7a279b908060948449f35ee4f470b612e1e59e4ef202b2a3183c5957689
MD5 hash:
0983549f160ae4fb71d1fb1aa3d00c54
SHA1 hash:
b30059d4aa9875112ecf76bc4857a4c5987a5ac6
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
28cf1be01db9163a93b1b3e32cac5fffb0741906e3ae37295e2263a267b8e5e9
MD5 hash:
fa8fbccf912e25209cf4e2c0aaeecd49
SHA1 hash:
e1ba2e9531080cb64aae687a0d7cd66edb943fa3
Detections:
Remcos
win_remcos_w0
win_remcos_auto
malware_windows_remcos_rat
win_remcos_rat_unpacked
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Malware family:
Remcos
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
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: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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