MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91735a2a578ca710a1f2e09985ba20079971ee87aa45bfb4b18f4f74a43ce08f. 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


SystemBC


Vendor detections: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91735a2a578ca710a1f2e09985ba20079971ee87aa45bfb4b18f4f74a43ce08f
SHA3-384 hash: bd248f2f0cf34c1bfeffd0f20497b8ba7768965b66d087c02e09219a32355db068820207d02e732611b93b71a38c64bf
SHA1 hash: 71786d8fa931c49e942bfe428aade8a15231852b
MD5 hash: b1da22324541e3de280c13160289986a
humanhash: zebra-delta-ink-west
File name:b1da22324541e3de280c13160289986a.exe
Download: download sample
Signature SystemBC
Create hunting rule
File size:454'656 bytes
First seen:2023-09-18 06:18:51 UTC
Last seen:2023-09-18 06:43:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'070 x AgentTesla, 20'027 x Formbook, 12'352 x SnakeKeylogger)
ssdeep 6144:Yv4pofbY8quKmfO0TaCaNNqB13O2/b8spTqC5hTxQ/u8JjFWG2:Yv4p7xPm2B9KfTxUu8JjFg
TLSH T187A4CF7EDB456F52D83D5B3C900210B827F0D64A2322E75B1CCAB2EB6697A174F712D2
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe SystemBC

Intelligence

File Origin
# of uploads :
2
# of downloads :
304
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b1da22324541e3de280c13160289986a.exe
Verdict:
Malicious activity
Analysis date:
2023-09-18 11:21:41 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/75f818ed-833b-4b56-bb81-ab4dc66444c0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
SystemBC
Create hunting rule
Link:
https://www.capesandbox.com/analysis/449248/
Detection(s):
SecuriteInfo.com.Win32.TrojanX-gen.24706.2998.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin obfuscated packed
Link:
https://www.filescan.io/uploads/6507ebd834be449f01167dd7/reports/65edab38-fd5a-4964-9d82-aedd7df948f8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/91735a2a578ca710a1f2e09985ba20079971ee87aa45bfb4b18f4f74a43ce08f
Malware family:
SystemBC
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cb58cd3f-ae59-45ab-bad9-0192f000baaa
Result
Threat name:
DarkTortilla, SystemBC
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1309785
Signature
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Creates autostart registry keys with suspicious values (likely registry only malware)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Performs DNS queries to domains with low reputation
Suspicious powershell command line found
Yara detected AntiVM3
Yara detected DarkTortilla Crypter
Yara detected SystemBC
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1309785 Sample: zg8FIwhfIe.exe Startdate: 18/09/2023 Architecture: WINDOWS Score: 100 32 Found malware configuration 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus / Scanner detection for submitted sample 2->36 38 8 other signatures 2->38 7 zg8FIwhfIe.exe 3 2->7         started        10 powershell.exe 11 2->10         started        12 powershell.exe 2->12         started        process3 signatures4 40 Performs DNS queries to domains with low reputation 7->40 42 Hides that the sample has been downloaded from the Internet (zone.identifier) 7->42 44 Injects a PE file into a foreign processes 7->44 14 zg8FIwhfIe.exe 1 7->14         started        18 zg8FIwhfIe.exe 2 10->18         started        20 conhost.exe 10->20         started        22 zg8FIwhfIe.exe 2 12->22         started        24 conhost.exe 12->24         started        process5 dnsIp6 30 mxstat215dm.xyz 45.131.66.83, 4044, 49710 LOVESERVERSGB Germany 14->30 46 Creates autostart registry keys with suspicious values (likely registry only malware) 14->46 26 zg8FIwhfIe.exe 18->26         started        48 Hides that the sample has been downloaded from the Internet (zone.identifier) 22->48 50 Injects a PE file into a foreign processes 22->50 28 zg8FIwhfIe.exe 22->28         started        signatures7 process8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91735a2a578ca710a1f2e09985ba20079971ee87aa45bfb4b18f4f74a43ce08f/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-09-18 06:19:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
10 of 23 (43.48%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sfzvuksxrstrbips4cmyloraa6mxd3uhvjc37nfrr5hxjjb44chq._file
Verdict:
malicious
Result
Malware family:
systembc
Create hunting rule
Score:
  10/10
Tags:
family:systembc trojan
Link:
https://tria.ge/reports/230918-g26wwsfd7y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
SystemBC
Malware Config
C2 Extraction:
mxstat215dm.xyz:4044
mxstex725dm.xyz:4044
Unpacked files
SH256 hash:
56aaa2b9e53d69dd75c8d1247220d8ea97b1b7705796b2e2ddff34c7eea8adee
MD5 hash:
50f28d178452b2db4e1f466904e55c78
SHA1 hash:
d9a3246a570715d756a6c653b6818afb99ae39ec
Link:
https://www.unpac.me/results/20ccf502-51a6-4c82-b42f-8ad763de5525/
SH256 hash:
720eb7865aa32950f28737087178ab60b13de358aeb838ede500c50f7235cc69
MD5 hash:
59ff3aedb3f9df07f7ed61aeec39d6d7
SHA1 hash:
d3df5789a205f7849ae626045f6fdb5a7a80da7e
Link:
https://www.unpac.me/results/20ccf502-51a6-4c82-b42f-8ad763de5525/
SH256 hash:
0781f74db6c9ff7aa0c1e76dd0ebc4a9575fba6caca9aac9fb0131c5a73c84be
MD5 hash:
2c064163cda2f093cf6d20302481dff7
SHA1 hash:
cf948b10d999c369ef51972f86278a4f536d400d
Link:
https://www.unpac.me/results/20ccf502-51a6-4c82-b42f-8ad763de5525/
SH256 hash:
c17c0223e4d9ea123207ea6dfffe6e430ffd95b8f27f88f1519be274328037fa
MD5 hash:
5bcfda03d6dd0d7c340fa0ce8f3a6bf8
SHA1 hash:
255727365e0048852286d62cde5a5c4e92a930f5
Link:
https://www.unpac.me/results/20ccf502-51a6-4c82-b42f-8ad763de5525/
Parent samples :
7177acd8a2b07f743dffb49442833163846c0f6e3f41056aef83a89185f0b743
c96f8d4d1ee675c3cd1b1cf2670bb9bc2379a6b66f3029b2ffcfdd67c612c499
c1d2e8b7b961e48a1ee4877d3f527f038697e0dfcda69b8cd470900b73e1e674
3d1d747d644420a2bdc07207b29a0509531e22eb0b1eedcd052f85085bef6865
3ae62bc5ec965577dbb25a3065edc53c2d779641ac985de0b822a5debac44d92
4106813cab1ac29a4771d7a399fd53fac78e60881d3529cf6bbc061e71f182ed
SH256 hash:
91735a2a578ca710a1f2e09985ba20079971ee87aa45bfb4b18f4f74a43ce08f
MD5 hash:
b1da22324541e3de280c13160289986a
SHA1 hash:
71786d8fa931c49e942bfe428aade8a15231852b
Link:
https://www.unpac.me/results/20ccf502-51a6-4c82-b42f-8ad763de5525/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/91735a2a578ca710a1f2e09985ba20079971ee87aa45bfb4b18f4f74a43ce08f

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

SystemBC

Executable exe 91735a2a578ca710a1f2e09985ba20079971ee87aa45bfb4b18f4f74a43ce08f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2712229/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/449248/
  
URLhaus
https://urlhaus.abuse.ch/url/2712328/

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