MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ca91d2c35b4c007e6190b591013d29002616d9f93a937f8235c429f534604266. 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
NanoCore
Vendor detections: 12
| SHA256 hash: | ca91d2c35b4c007e6190b591013d29002616d9f93a937f8235c429f534604266 |
|---|---|
| SHA3-384 hash: | beca0d1c71689198f9c801024c0e5aeefa84e514163eb8b14515365f089a25f177926f41d28dd13552b7814a534cd836 |
| SHA1 hash: | 0a6c0dbbfe10562744ef364c9c2d8eb25b74f9d9 |
| MD5 hash: | a352af3641e56203e59b69fa73cf116b |
| humanhash: | cat-saturn-fillet-high |
| File name: | lt.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 751'616 bytes |
| First seen: | 2021-09-30 13:42:09 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 12288:AHbQ+X8+UiDLbRHahmU4Ch58SnDchLE1zkzK7TlFYAgytHIKBho1b+C9a:UbQ+X8+UiDLbRHahmUXhTDwL+IAttHIa |
| Threatray | 3'560 similar samples on MalwareBazaar |
| TLSH | T10BF49D54F11CD2B9FE1822B1293DFCD815F82EA8147DE91BB9D7B1A234B9E7114B00A7 |
| File icon (PE): |  |
| dhash icon | 1d19094a5b2f371e (26 x AgentTesla, 4 x NanoCore, 4 x DarkCloud) |
| Reporter |  James_inthe_box |
| Tags: | exe NanoCore |
Intelligence
File Origin
# of uploads :
1
# of downloads :
190
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MalwareSample_87529D8E0C91EFB684356157D46FF066CE8EEA33.zip
Verdict:
Malicious activity
Analysis date:
2021-09-30 04:34:47 UTC
Tags:
exploit CVE-2017-11882 loader rat nanocore
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Malware family:
NanoCoreRAT
Verdict:
Malicious
Result
Threat name:
Nanocore
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-09-30 13:41:15 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
nanocorerat
Similar samples:
+ 3'550 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Score:
10/10
Tags:
family:nanocore evasion keylogger spyware stealer suricata trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks whether UAC is enabled
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
23.105.131.161:4040
Unpacked files
SH256 hash:
3bc6aa13a50d1e233f3c45224d7bf2c6aa1e4365c24faba5bb2f0f94921e7786
MD5 hash:
8cc37fe38386f8d9106ff4d037ccbc80
SHA1 hash:
f714c7421e2c8c3dc2cb5a5e90543c9928a2fa8f
SH256 hash:
c4e09c4efa12b09e39c1b012c205673ef6474b5138cbbcdbcd8163700bd132f0
MD5 hash:
aa9eae98ac1fec13240c9d24412f09d5
SHA1 hash:
c0359dea0e984b33efa26e6cf8908f33fcdfbf24
SH256 hash:
6fef8420a8bd6a90cfe7ac8aeb0e3811422b9b6cb9e0b14ea03f5236438f72ba
MD5 hash:
10c7772f435231d58046e0dc34def127
SHA1 hash:
38c8f9ffb5136848d62582ef41bab6c810121c74
SH256 hash:
f7d272daf3522f99ca67b99bfe557564baba239104c7f20cef842f2e870bdf28
MD5 hash:
cceaca53d81061c0f1c6cf35ca7bf34b
SHA1 hash:
23ba45b249e0e4bdc5a8d4b4b07e2f7509cf85be
SH256 hash:
0c6912acdc324984c9675886f3e456593c158bab7578aac70d5ef12a2b5d2953
MD5 hash:
57d9b7c68064c46ccb5041b66efbfa25
SHA1 hash:
1f132325e1f224bb96ffbff32052920ef7ebdb9a
Detections:
win_nanocore_w0
SH256 hash:
ca91d2c35b4c007e6190b591013d29002616d9f93a937f8235c429f534604266
MD5 hash:
a352af3641e56203e59b69fa73cf116b
SHA1 hash:
0a6c0dbbfe10562744ef364c9c2d8eb25b74f9d9
Malware family:
NanoCore
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: | ach_NanoCore |
|---|---|
| Author: | abuse.ch |
| Rule name: | Nanocore |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Nanocore in memory |
| Reference: | internal research |
| Rule name: | nanocore_rat |
|---|---|
| Author: | jeFF0Falltrades |
| Rule name: | Nanocore_RAT_Feb18_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Nanocore RAT |
| Reference: | Internal Research - T2T |
| Rule name: | Nanocore_RAT_Feb18_1_RID2DF1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Nanocore RAT |
| Reference: | Internal Research - T2T |
| Rule name: | Nanocore_RAT_Gen_2 |
|---|---|
| Author: | Florian Roth |
| Description: | Detetcs the Nanocore RAT |
| Reference: | https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/ |
| Rule name: | Nanocore_RAT_Gen_2_RID2D96 |
|---|---|
| Author: | Florian Roth |
| Description: | Detetcs the Nanocore RAT |
| Reference: | https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/ |
| Rule name: | pe_imphash |
|---|
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | win_nanocore_w0 |
|---|---|
| Author: | Kevin Breen <kevin@techanarchy.net> |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Delivery method
Other
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