MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 c81cbf497e7427936c0f15290fe4a1648c8fc10c249d3b97e67897bd1e2808b6. 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
CobaltStrike
Vendor detections: 7
| SHA256 hash: | c81cbf497e7427936c0f15290fe4a1648c8fc10c249d3b97e67897bd1e2808b6 |
|---|---|
| SHA3-384 hash: | 7335ffb22bdc00698cd5f3c1f1af8595a09d4fd873a68b62a44691709ba8db781e29ade46761afd41916466fb18b0200 |
| SHA1 hash: | 2df1e886431aff5bcad522ae087c248eb7c6d339 |
| MD5 hash: | 6c29442cb1b43edd711af2ad1975ae90 |
| humanhash: | nineteen-kilo-tennessee-eighteen |
| File name: | tor.exe |
| Download: | download sample |
| Signature | CobaltStrike |
| File size: | 237'568 bytes |
| First seen: | 2020-11-16 17:25:22 UTC |
| Last seen: | 2020-11-16 18:58:48 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | fe3ff17d40dc59aeb06b835c5d1ea8c3 (2 x CobaltStrike) |
| ssdeep | 3072:+9YLjegz1IV+FFCxMKLNZ1eVaZ2/3Ivl8m96sw84p2Auqxt/lsAz1q9lfHQXRT5G:+GLiq1jFYf1FZyi8mEN+AJ2Yk9xgtIG |
| Threatray | 811 similar samples on MalwareBazaar |
| TLSH | 9D34012136B0D832C657A5778C69CF159BBDF9302AB485077738533DAF623D28A3724A |
| Reporter |  malware_traffic |
| Tags: | CobaltStrike exe |
Intelligence
File Origin
# of uploads :
2
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending an HTTP GET request
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
CobaltStrike
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Glupteba
Status:
Malicious
First seen:
2020-11-16 17:27:16 UTC
AV detection:
25 of 28 (89.29%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cobaltstrike
Similar samples:
+ 801 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
c81cbf497e7427936c0f15290fe4a1648c8fc10c249d3b97e67897bd1e2808b6
MD5 hash:
6c29442cb1b43edd711af2ad1975ae90
SHA1 hash:
2df1e886431aff5bcad522ae087c248eb7c6d339
SH256 hash:
a569298d93d3400f8647a4cee1a7d607e4cdea06ac10130dab4eebfff50fa2ee
MD5 hash:
e359ac5591aaf7bc121d450daa9d6dab
SHA1 hash:
566cce0b66f411de3652131766da91457be5e301
SH256 hash:
399607663b2815e3df74eeb1f3936b7a793fec3b718c706145570c2a855fbd3c
MD5 hash:
06f549ac0c8fb64fe66e47495d0c361f
SHA1 hash:
698ca6b824ff5c26f531207fd6a69f25aad9e345
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Glupteba
Score:
1.00
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: | APT_DarkHydrus_Jul18_5 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects strings found in malware samples in APT report in DarkHydrus |
| Reference: | https://researchcenter.paloaltonetworks.com/2018/07/unit42-new-threat-actor-group-darkhydrus-targets-middle-east-government/ |
| Rule name: | Beacon_K5om |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Meterpreter Beacon - file K5om.dll |
| Reference: | https://www.fireeye.com/blog/threat-research/2017/06/phished-at-the-request-of-counsel.html |
| Rule name: | CobaltStrikeBeacon |
|---|---|
| Author: | enzo |
| Description: | Cobalt Strike Beacon Payload |
| Rule name: | CobaltStrike_Sleep_Decoder_Indicator |
|---|---|
| Author: | yara@s3c.za.net |
| Description: | Detects CobaltStrike sleep_mask decoder |
| Rule name: | CobaltStrike_Unmodifed_Beacon |
|---|---|
| Author: | yara@s3c.za.net |
| Description: | Detects unmodified CobaltStrike beacon DLL |
| Rule name: | crime_win32_csbeacon_1 |
|---|---|
| Author: | @VK_Intel |
| Description: | Detects Cobalt Strike loader |
| Reference: | https://twitter.com/VK_Intel/status/1239632822358474753 |
| Rule name: | HKTL_Meterpreter_inMemory |
|---|---|
| Author: | netbiosX, Florian Roth |
| Description: | Detects Meterpreter in-memory |
| Reference: | https://www.reddit.com/r/purpleteamsec/comments/hjux11/meterpreter_memory_indicators_detection_tooling/ |
| Rule name: | INDICATOR_SUSPICIOUS_ReflectiveLoader |
|---|---|
| Author: | ditekSHen |
| Description: | detects Reflective DLL injection artifacts |
| Rule name: | Leviathan_CobaltStrike_Sample_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Cobalt Strike sample from Leviathan report |
| Reference: | https://goo.gl/MZ7dRg |
| Rule name: | Malware_QA_vqgk |
|---|---|
| Author: | Florian Roth |
| Description: | VT Research QA uploaded malware - file vqgk.dll |
| Reference: | VT Research QA |
| Rule name: | MALWARE_Win_CobaltStrike |
|---|---|
| Author: | ditekshen |
| Description: | CobaltStrike payload |
| Rule name: | PowerShell_Susp_Parameter_Combo |
|---|---|
| Author: | Florian Roth |
| Description: | Detects PowerShell invocation with suspicious parameters |
| Reference: | https://goo.gl/uAic1X |
| Rule name: | ReflectiveLoader |
|---|---|
| Description: | Detects a unspecified hack tool, crack or malware using a reflective loader - no hard match - further investigation recommended |
| Reference: | Internal Research |
| Rule name: | WiltedTulip_ReflectiveLoader |
|---|---|
| Author: | Florian Roth |
| Description: | Detects reflective loader (Cobalt Strike) used in Operation Wilted Tulip |
| Reference: | http://www.clearskysec.com/tulip |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.