MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 adfb07f6f0a466bfa3ec21c93e946566fd52885319c318e7327cb10b20ba7cbb. 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


Tofsee


Vendor detections: 16


Intelligence 16 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: adfb07f6f0a466bfa3ec21c93e946566fd52885319c318e7327cb10b20ba7cbb
SHA3-384 hash: 320d7d7d2c2298e523de963e2dca9a555af843881e291971050932c0db8f59dca2c7d2fc0f517f22ea9820603f56ce89
SHA1 hash: c5eb7a17e94b6cacfa79559fdb3722b0ae42385f
MD5 hash: 4784d7934eff171a3f0222b6068d6c58
humanhash: colorado-autumn-fruit-oven
File name:file
Download: download sample
Signature Tofsee
Create hunting rule
File size:197'632 bytes
First seen:2023-03-12 07:56:42 UTC
Last seen:2023-03-12 09:27:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash a90cc1b6f902761feb40477393138296 (6 x Smoke Loader, 3 x RedLineStealer, 2 x Amadey)
ssdeep 3072:UEWqR7+49wlqJ66JQbnDnByxraT0cbScEzQMQ7X6i+T+YI:yqh+49PQnByU/bVAnQ7
Threatray 364 similar samples on MalwareBazaar
TLSH T117149E02F3F17C61F673C7719F3FC2E46A2FB5619E68676E22084A1B0AB11D1E562712
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 1098c8c6c452c268 (1 x Tofsee)
Reporter andretavare5
Tags:exe Tofsee


Avatar
andretavare5
Sample downloaded from http://176.113.115.239:8080/4.php

Intelligence

File Origin
# of uploads :
2
# of downloads :
222
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
tofsee
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-03-12 08:00:02 UTC
Tags:
tofsee trojan miner
Link:
https://app.any.run/tasks/b380f7be-3041-449a-803b-0e0b6d6d3881

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Tofsee
Create hunting rule
Link:
https://www.capesandbox.com/analysis/373673/
Detection(s):
SecuriteInfo.com.Variant.Zusy.452743.6825.29764.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file
Launching the process to change the firewall settings
Creating a service
Creating a process from a recently created file
Launching a service
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun for a service
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed shell32.dll
Link:
https://www.filescan.io/uploads/640d85cfb65c45d06f73b0f0/reports/1c796a96-38f0-46ec-966e-423a220b56d8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/adfb07f6f0a466bfa3ec21c93e946566fd52885319c318e7327cb10b20ba7cbb
Malware family:
Tofsee
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b4bcbb8f-9dc2-41ae-a55b-c19ef273cbd8
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1191905
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Deletes itself after installation
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops executables to the windows directory (C:\Windows) and starts them
Found API chain indicative of debugger detection
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected Tofsee
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 824781 Sample: file.exe Startdate: 12/03/2023 Architecture: WINDOWS Score: 100 43 microsoft-com.mail.protection.outlook.com 2->43 49 Snort IDS alert for network traffic 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus detection for dropped file 2->53 55 6 other signatures 2->55 8 jbxgyxaw.exe 2->8         started        11 file.exe 2 2->11         started        signatures3 process4 file5 57 Detected unpacking (changes PE section rights) 8->57 59 Detected unpacking (overwrites its own PE header) 8->59 61 Writes to foreign memory regions 8->61 67 2 other signatures 8->67 14 svchost.exe 1 8->14         started        41 C:\Users\user\AppData\Local\...\jbxgyxaw.exe, PE32 11->41 dropped 63 Uses netsh to modify the Windows network and firewall settings 11->63 65 Modifies the windows firewall 11->65 18 cmd.exe 1 11->18         started        21 netsh.exe 3 11->21         started        23 cmd.exe 2 11->23         started        25 3 other processes 11->25 signatures6 process7 dnsIp8 45 nidavellir.top 185.251.88.202, 443, 49697, 49698 SPRINTHOSTRU Russian Federation 14->45 47 microsoft-com.mail.protection.outlook.com 104.47.53.36, 25, 49696 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 14->47 69 System process connects to network (likely due to code injection or exploit) 14->69 71 Found API chain indicative of debugger detection 14->71 73 Deletes itself after installation 14->73 39 C:\Windows\SysWOW64\...\jbxgyxaw.exe (copy), PE32 18->39 dropped 27 conhost.exe 18->27         started        29 conhost.exe 21->29         started        31 conhost.exe 23->31         started        33 conhost.exe 25->33         started        35 conhost.exe 25->35         started        37 conhost.exe 25->37         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/adfb07f6f0a466bfa3ec21c93e946566fd52885319c318e7327cb10b20ba7cbb/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2023-03-12 07:57:07 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vx5qp5xqurtl7i7mehet5fdfm36vfcctdhbrrzzspsyqwif2ps5q._file
Verdict:
malicious
Similar samples:
1b19d4900e76663a80c4951005fd5e0af4ed1b2a99514e08cceaa1375f963b3a
Tofsee
1f6a2ebd5e58a939503b1b51a6e22090e80bc39099f715852cb3719b32e4a7d1
Tofsee
1fbf681bf37fdf0d5afdf9f592c11d5ce1526b77d8592d7b8f1363b5ab3f9697
Tofsee
32de2876099186d249a38f6a62cb5f3e75aeec48b8d2a76cb8c644a5941c5455
Tofsee
4f8f35335dce9870e601b44c6d38a83cd2feaa081d7ae1b16c91258674e02630
Tofsee
6e27a3657b4210d7ff95655fac0866e0230d882946202f87b476b54e0fd9c6f9
Tofsee
c959fbe4d4693a1d2b862e8e907fd6e41296d26b02d49346d2ff9ff454990987
Tofsee
d1b4bc5606efaaf6453a78ce213bec611ad869d2b4cfc9940e15a871d7b13edf
Tofsee
d472e9f2035d1666253e7ee2e36f98fd0bf3e82e70fe8517e52133302754cb96
Tofsee
fa36d9cb7205987f2a5b40981f9ab533fb64e52bfd4eca958d7e29b181e3ce1b
Tofsee
+ 354 additional samples on MalwareBazaar
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:tofsee family:xmrig evasion miner persistence trojan
Link:
https://tria.ge/reports/230312-js9mjafc5t/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Executes dropped EXE
Creates new service(s)
Modifies Windows Firewall
Sets service image path in registry
XMRig Miner payload
Tofsee
Windows security bypass
xmrig
Malware Config
C2 Extraction:
nidavellir.top
jotunheim.name
Unpacked files
SH256 hash:
bfb026214b0a65f3363a1b88e1d5025b03dc8c0f5c11286b36ff724e38919a43
MD5 hash:
48504b19943816579be4a8784aac08d1
SHA1 hash:
56bd46c9efb18f8b4748dee08d85251e647a2a16
Detections:
Tofsee
Create hunting rule
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/4a93b929-0c99-44dc-918f-df786b04f9ca/
Parent samples :
cad1a1f826af74ab5fe83fe89ae39874b8443b7a85f6eaa6afe3d8c8cde80428
4f8f35335dce9870e601b44c6d38a83cd2feaa081d7ae1b16c91258674e02630
1f6a2ebd5e58a939503b1b51a6e22090e80bc39099f715852cb3719b32e4a7d1
adfb07f6f0a466bfa3ec21c93e946566fd52885319c318e7327cb10b20ba7cbb
2279dc10a3db2ec68f0040c03f81998168d0cd770340b0d49b5bfed5a92e634a
2ee64e188677e6544342a29562d04bcab608c528f91df42e09a6fb5c8a63b8ce
a2cbb1cf3dc6fbbefec090e40d8ee0eae32d7ebc552b69623aa87dae22527791
SH256 hash:
adfb07f6f0a466bfa3ec21c93e946566fd52885319c318e7327cb10b20ba7cbb
MD5 hash:
4784d7934eff171a3f0222b6068d6c58
SHA1 hash:
c5eb7a17e94b6cacfa79559fdb3722b0ae42385f
Link:
https://www.unpac.me/results/4a93b929-0c99-44dc-918f-df786b04f9ca/
Malware family:
XMRig
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/adfb07f6f0a4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/adfb07f6f0a466bfa3ec21c93e946566fd52885319c318e7327cb10b20ba7cbb

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:Detect_Tofsee
Create hunting rule
Author:@malgamy12
Description:Detect_Tofsee
Rule name:MALWARE_Win_Tofsee
Create hunting rule
Author:ditekSHen
Description:Detects Tofsee
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:tofsee_yhub
Create hunting rule
Author:Billy Austin
Description:Detects Tofsee botnet, also known as Gheg
Rule name:Windows_Trojan_Tofsee_26124fe4
Create hunting rule
Author:Elastic Security
Rule name:win_tofsee_w0
Create hunting rule
Author:akrasuski1
Rule name:yara_template
Create hunting rule

File information

The table below shows additional information about this malware sample such as delivery method and external references.

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by
Cape
Cape
https://www.capesandbox.com/analysis/373673/

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