MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 992f98e70bc5bdfbb7c2c2f3250caf97f831619ac56f0aca3f67dccdb923f94e. 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: 15
| SHA256 hash: | 992f98e70bc5bdfbb7c2c2f3250caf97f831619ac56f0aca3f67dccdb923f94e |
|---|---|
| SHA3-384 hash: | b794e158381bc149094e7738bec11de7a4aa7b810aadb3924ea2cf77d261ac2f094874f714d40f907b5a4b0a569217f0 |
| SHA1 hash: | 83da8180f9cc3726715b1e64cb711b4bca8e458e |
| MD5 hash: | 95a7f1a09575c0a96f479ba25c132b25 |
| humanhash: | failed-golf-hamper-indigo |
| File name: | 992f98e70bc5bdfbb7c2c2f3250caf97f831619ac56f0aca3f67dccdb923f94e.exe |
| Download: | download sample |
| Signature | CobaltStrike |
| File size: | 259'584 bytes |
| First seen: | 2023-07-18 18:21:21 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 6de6115f20bca3362af8264a13983232 (2 x CobaltStrike) |
| ssdeep | 3072:p+ypGi24jaWfcKVNfGqNfMBCZ+6984iaKmLCz0YkxZf5SM+sQ:Ey724j3Xh0bjuCzZgvS3 |
| Threatray | 123 similar samples on MalwareBazaar |
| TLSH | T1F9445916E165DCF9E81EE0F482565561BD3A7C840B31FAEF16B472322D37AE0AE3D244 |
| TrID | 44.4% (.EXE) Win64 Executable (generic) (10523/12/4) 21.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 8.7% (.ICL) Windows Icons Library (generic) (2059/9) 8.5% (.EXE) OS/2 Executable (generic) (2029/13) 8.4% (.EXE) Generic Win/DOS Executable (2002/3) |
| File icon (PE): |  |
| dhash icon | 60e0d48284c4e0cc (1 x CobaltStrike) |
| Reporter |  Victas |
| Tags: | Cobalt Strike exe |
Intelligence
File Origin
# of uploads :
1
# of downloads :
305
Origin country :
HKVendor Threat Intelligence
Malware family:
cobaltstrike
ID:
1
File name:
992f98e70bc5bdfbb7c2c2f3250caf97f831619ac56f0aca3f67dccdb923f94e.exe
Verdict:
Malicious activity
Analysis date:
2023-07-18 18:22:35 UTC
Tags:
cobaltstrike
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
CobaltStrikeStager
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
DNS request
Sending a custom TCP request
Verdict:
No Threat
Threat level:
10/10
Confidence:
100%
Tags:
anti-debug
Verdict:
Malicious
Labled as:
Win64/Rozena.WU trojan
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
Result
Threat name:
CobaltStrike
Detection:
malicious
Classification:
troj
Score:
76 / 100
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Malicious sample detected (through community Yara rule)
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Threat name:
Win64.Trojan.Rozena
Status:
Malicious
First seen:
2023-07-18 18:22:06 UTC
File Type:
PE+ (Exe)
Extracted files:
2
AV detection:
16 of 24 (66.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cobaltstrike
Similar samples:
+ 113 additional samples on MalwareBazaar
Result
Malware family:
cobaltstrike
Score:
10/10
Tags:
family:cobaltstrike botnet:100000000 backdoor trojan
Behaviour
Modifies system certificate store
Cobaltstrike
Malware Config
C2 Extraction:
http://service-rf92ame8-1309846044.gz.apigw.tencentcs.com:443/api/getit
Unpacked files
SH256 hash:
992f98e70bc5bdfbb7c2c2f3250caf97f831619ac56f0aca3f67dccdb923f94e
MD5 hash:
95a7f1a09575c0a96f479ba25c132b25
SHA1 hash:
83da8180f9cc3726715b1e64cb711b4bca8e458e
Malware family:
CobaltStrike
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
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: | CobaltStrikeBeacon |
|---|---|
| Author: | ditekshen, enzo & Elastic |
| Description: | Cobalt Strike Beacon Payload |
| Rule name: | CobaltStrike_C2_Encoded_XOR_Config_Indicator |
|---|---|
| Author: | yara@s3c.za.net |
| Description: | Detects CobaltStrike C2 encoded profile configuration |
| Rule name: | CobaltStrike_MZ_Launcher |
|---|---|
| Author: | yara@s3c.za.net |
| Description: | Detects CobaltStrike MZ header ReflectiveLoader launcher |
| Rule name: | CobaltStrike_Sleep_Decoder_Indicator |
|---|---|
| Author: | yara@s3c.za.net |
| Description: | Detects CobaltStrike sleep_mask decoder |
| Rule name: | CobaltStrike_Sleeve_BeaconLoader_VA_x64_o_v4_3_v4_4_v4_5_and_v4_6 |
|---|---|
| Author: | gssincla@google.com |
| Description: | Cobalt Strike's sleeve/BeaconLoader.VA.x64.o (VirtualAlloc) Versions 4.3 through at least 4.6 |
| Reference: | https://cloud.google.com/blog/products/identity-security/making-cobalt-strike-harder-for-threat-actors-to-abuse |
| Rule name: | CobaltStrike_Sleeve_Beacon_x64_v4_5_variant |
|---|---|
| Author: | gssincla@google.com |
| Description: | Cobalt Strike's sleeve/beacon.x64.dll Versions 4.5 (variant) |
| Reference: | https://cloud.google.com/blog/products/identity-security/making-cobalt-strike-harder-for-threat-actors-to-abuse |
| Rule name: | CobaltStrike__Sleeve_BeaconLoader_VA_x64_o_v4_3_v4_4_v4_5_and_v4_6 |
|---|---|
| Author: | gssincla@google.com |
| Rule name: | CobaltStrike__Sleeve_Beacon_x64_v4_5_variant |
|---|---|
| Author: | gssincla@google.com |
| Rule name: | HKTL_CobaltStrike_Beacon_4_2_Decrypt |
|---|---|
| Author: | Elastic |
| Description: | Identifies deobfuscation routine used in Cobalt Strike Beacon DLL version 4.2 |
| Reference: | https://www.elastic.co/blog/detecting-cobalt-strike-with-memory-signatures |
| Rule name: | HKTL_CobaltStrike_Beacon_Strings |
|---|---|
| Author: | Elastic |
| Description: | Identifies strings used in Cobalt Strike Beacon DLL |
| Reference: | https://www.elastic.co/blog/detecting-cobalt-strike-with-memory-signatures |
| Rule name: | HKTL_CobaltStrike_SleepMask_Jul22 |
|---|---|
| Author: | CodeX |
| Description: | Detects static bytes in Cobalt Strike 4.5 sleep mask function that are not obfuscated |
| Reference: | https://codex-7.gitbook.io/codexs-terminal-window/blue-team/detecting-cobalt-strike/sleep-mask-kit-iocs |
| 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: | HKTL_Win_CobaltStrike |
|---|---|
| Author: | threatintel@volexity.com |
| Description: | The CobaltStrike malware family. |
| Reference: | https://www.volexity.com/blog/2021/05/27/suspected-apt29-operation-launches-election-fraud-themed-phishing-campaigns/ |
| Rule name: | MALW_cobaltrike |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Rule to detect CobaltStrike beacon |
| Reference: | https://malpedia.caad.fkie.fraunhofer.de/details/win.cobalt_strike |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | ReflectiveLoader |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects a unspecified hack tool, crack or malware using a reflective loader - no hard match - further investigation recommended |
| Reference: | Internal Research |
| Rule name: | Rustyloader_mem_loose |
|---|---|
| Author: | James_inthe_box |
| Description: | Corroded buerloader |
| Reference: | https://app.any.run/tasks/83064edd-c7eb-4558-85e8-621db72b2a24 |
| Rule name: | SUSP_XORed_Mozilla |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key. |
| Reference: | https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force() |
| Rule name: | SUSP_XORed_Mozilla_RID2DB4 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects suspicious XORed keyword - Mozilla/5.0 |
| Reference: | Internal Research |
| Rule name: | Trojan_Raw_Generic_4 |
|---|---|
| Author: | FireEye |
| Reference: | https://www.fireeye.com/blog/products-and-services/2020/12/fireeye-shares-details-of-recent-cyber-attack-actions-to-protect-community.html |
| Rule name: | Windows_Trojan_CobaltStrike_1787eef5 |
|---|---|
| Author: | Elastic Security |
| Description: | CS shellcode variants |
| Rule name: | Windows_Trojan_CobaltStrike_663fc95d |
|---|---|
| Author: | Elastic Security |
| Description: | Identifies CobaltStrike via unidentified function code |
| Rule name: | Windows_Trojan_CobaltStrike_b54b94ac |
|---|---|
| Description: | Rule for beacon sleep obfuscation routine |
| Rule name: | Windows_Trojan_CobaltStrike_ee756db7 |
|---|---|
| Author: | Elastic Security |
| Description: | Attempts to detect Cobalt Strike based on strings found in BEACON |
| Rule name: | Windows_Trojan_CobaltStrike_f0b627fc |
|---|---|
| Description: | Rule for beacon reflective loader |
| Rule name: | win_cobalt_strike_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.cobalt_strike. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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