MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4c81e185138baf8afc8a73fad146f32f2db2005d1dbcf0d64cc98c038b422a7e. 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
AsyncRAT
Vendor detections: 13
| SHA256 hash: | 4c81e185138baf8afc8a73fad146f32f2db2005d1dbcf0d64cc98c038b422a7e |
|---|---|
| SHA3-384 hash: | 3d565fa1d476ab383e006906c7bd7734c2145a65ed8dd7bc7e1ce4678c2d693e1f81a8f4ee77a5ed5971fd4c75ae535e |
| SHA1 hash: | 8f5485e567043b5e012af3a8c7bed9fa086b12a4 |
| MD5 hash: | 5d6997b3cea3a39db15c190de69fe37b |
| humanhash: | berlin-purple-finch-nebraska |
| File name: | New Purchase Order Ref001221.exe |
| Download: | download sample |
| Signature | AsyncRAT |
| File size: | 636'416 bytes |
| First seen: | 2021-08-31 19:00:41 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 6144:cwemcZySOGOqD6GhcEhcR1NlbCxw6I3TNDlRdFexUVLiyWOyv4bO:ckdSOLqDCScR1Sxw6I3F62LZ+A |
| Threatray | 1'260 similar samples on MalwareBazaar |
| TLSH | T1E8D4A97F19BDA127A175C6E58BE34423F0018BAF31216925B6D747164323A7AB4F332E |
| Reporter |  abuse_ch |
| Tags: | AsyncRAT exe RAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 103.232.55.66:2256 | https://threatfox.abuse.ch/ioc/203868/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
221
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
New Purchase Order Ref001221.exe
Verdict:
Malicious activity
Analysis date:
2021-08-31 19:03:31 UTC
Tags:
trojan rat asyncrat
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRat
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Deleting a recently created file
Unauthorized injection to a recently created process
Launching a process
Creating a process with a hidden window
Creating a file
Connection attempt
Malware family:
AsyncRAT
Verdict:
Malicious
Result
Threat name:
AsyncRAT
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
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Detection:
asyncrat
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-08-31 11:36:33 UTC
AV detection:
18 of 28 (64.29%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
asyncrat
Similar samples:
+ 1'250 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Score:
10/10
Tags:
family:asyncrat rat suricata
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Async RAT payload
AsyncRat
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
Malware Config
C2 Extraction:
127.0.0.1:2245
127.0.0.1:2256
fresh01.ddns.net:2245
fresh01.ddns.net:2256
127.0.0.1:2256
fresh01.ddns.net:2245
fresh01.ddns.net:2256
Unpacked files
SH256 hash:
c0ee1071e444f415f8b62856a0896f3b22e563f1bb4f03d14142583efe49a565
MD5 hash:
29db2e114b88ae1f6a00c9aa71690043
SHA1 hash:
ec82db71443556a5b320357b0b8b09e70ec1db9c
SH256 hash:
70b74fab4e4f04e153bec5e736dae0abe48ad06657823f2a6d0f0bb8f67bcc03
MD5 hash:
a9925bdb6f4cc998fff3f986d0f01c5a
SHA1 hash:
74bf38df0c5bad6c16e00f7d937e1ab4f60fe9c4
Detections:
win_asyncrat_w0
Parent samples :
04146a5e5ccf0038e5b3a8c3bf3880493f19d99c03400af0f7ecacb0d9ef1ac0
2ef729f2dea49ea7657c932812b60491b78316dec488ea605bd911cf4f0f80d5
1cade1016a9ab34f6ec34b5e9f62850f42dc6c4b417caf805803d69db1f989e7
4c81e185138baf8afc8a73fad146f32f2db2005d1dbcf0d64cc98c038b422a7e
d41f459f38552a3608b6825b2245c27105205d0688ae6f3838e94b2e11b6a980
2ef729f2dea49ea7657c932812b60491b78316dec488ea605bd911cf4f0f80d5
1cade1016a9ab34f6ec34b5e9f62850f42dc6c4b417caf805803d69db1f989e7
4c81e185138baf8afc8a73fad146f32f2db2005d1dbcf0d64cc98c038b422a7e
d41f459f38552a3608b6825b2245c27105205d0688ae6f3838e94b2e11b6a980
SH256 hash:
26bcf5cc2bbc9d1e0ce6fed4fce1b447d33f5f8797d5800184316ed0b81aafec
MD5 hash:
6a23a01f48d690b92ca1693989571b79
SHA1 hash:
1c0e895e2a7ac833da99891e39e52934fcbff16a
SH256 hash:
4c81e185138baf8afc8a73fad146f32f2db2005d1dbcf0d64cc98c038b422a7e
MD5 hash:
5d6997b3cea3a39db15c190de69fe37b
SHA1 hash:
8f5485e567043b5e012af3a8c7bed9fa086b12a4
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
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: | asyncrat |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect AsyncRat in memory |
| Reference: | internal research |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse |
|---|---|
| Author: | ditekSHen |
| Description: | Detects file containing reversed ASEP Autorun registry keys |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | pe_imphash |
|---|
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | win_asyncrat_j1 |
|---|---|
| Author: | Johannes Bader @viql |
| Description: | detects AsyncRAT |
| Rule name: | win_asyncrat_w0 |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect AsyncRat in memory |
| Reference: | internal research |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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