MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8b41cb72048c6b7765a40ec5c4b5290542ad544dc38578b1a6cbfac202364d4. 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


BluStealer


Vendor detections: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8b41cb72048c6b7765a40ec5c4b5290542ad544dc38578b1a6cbfac202364d4
SHA3-384 hash: 0f635ee6ec0620b1fe84ee6a78112217598b07d3fc6222c777748a7d3c55b366b2c96c99eb94216d558624a512d0d470
SHA1 hash: e874547882aa4d1198835d692622434cca2bfad1
MD5 hash: 5b60d5967f298daf26495b9d1ad95636
humanhash: pennsylvania-golf-sweet-summer
File name:SecuriteInfo.com.Trojan.MSIL.Seraph.ac.32619.14358
Download: download sample
Signature BluStealer
Create hunting rule
File size:800'768 bytes
First seen:2022-07-27 07:35:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:f0viLVE1FspBeCCf0swjAKmGe7bY2crizjG:f0AzpBeCCssFVzjG
Threatray 220 similar samples on MalwareBazaar
TLSH T1BC0501F335E7C92CC892B6792AB93C6FB90AE535665C317ECF7C6A0041E80765CA2711
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 9800626eece2e0e8 (3 x AgentTesla, 1 x a310Logger, 1 x BluStealer)
Reporter SecuriteInfoCom
Tags:BluStealer exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
303
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/294550/
Detection(s):
SecuriteInfo.com.Trojan.MSIL.Seraph.ac.32619.14358.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Creating a window
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62e0eaed7dd0cb902f048b70/reports/88d0d0af-e93c-44a0-8a8e-3fb36fa63195/overview
Result
Verdict:
UNKNOWN
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
Link:
https://analyze.intezer.com/analyses/a25ef2bf-02cd-4b7f-9670-1117f2536446
Result
Threat name:
BluStealer, SpyEx
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1041652
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates multiple autostart registry keys
Encrypted powershell cmdline option found
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Writes or reads registry keys via WMI
Yara detected BluStealer
Yara detected Generic Downloader
Yara detected SpyEx stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 674146 Sample: SecuriteInfo.com.Trojan.MSI... Startdate: 27/07/2022 Architecture: WINDOWS Score: 100 74 Malicious sample detected (through community Yara rule) 2->74 76 Antivirus / Scanner detection for submitted sample 2->76 78 Multi AV Scanner detection for submitted file 2->78 80 6 other signatures 2->80 7 SecuriteInfo.com.Trojan.MSIL.Seraph.ac.32619.exe 1 5 2->7         started        11 firebase.exe 2->11         started        13 Uarexqz.exe 2 2->13         started        15 2 other processes 2->15 process3 file4 54 C:\Users\user\AppData\Roaming\...\Uarexqz.exe, PE32 7->54 dropped 56 C:\Users\user\...\Uarexqz.exe:Zone.Identifier, ASCII 7->56 dropped 58 SecuriteInfo.com.T...ph.ac.32619.exe.log, ASCII 7->58 dropped 82 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->82 84 Encrypted powershell cmdline option found 7->84 86 Creates multiple autostart registry keys 7->86 17 powershell.exe 17 7->17         started        20 SecuriteInfo.com.Trojan.MSIL.Seraph.ac.32619.exe 4 12 7->20         started        88 Antivirus detection for dropped file 11->88 90 Multi AV Scanner detection for dropped file 11->90 92 Machine Learning detection for dropped file 11->92 23 firebase.exe 11->23         started        25 powershell.exe 11->25         started        34 2 other processes 11->34 94 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 13->94 96 Writes or reads registry keys via WMI 13->96 98 Injects a PE file into a foreign processes 13->98 27 Uarexqz.exe 13->27         started        30 powershell.exe 13->30         started        32 powershell.exe 15->32         started        36 3 other processes 15->36 signatures5 process6 dnsIp7 62 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 17->62 64 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 17->64 66 Writes or reads registry keys via WMI 17->66 38 conhost.exe 17->38         started        48 C:\Users\Public\...\sqlite3.dll, PE32 20->48 dropped 50 C:\Users\Public\...\SQLite3_StdCall.dll, PE32 20->50 dropped 68 Creates multiple autostart registry keys 20->68 52 C:\Users\Public\...\firebase.exe, PE32 23->52 dropped 70 Tries to harvest and steal browser information (history, passwords, etc) 23->70 72 Tries to steal Crypto Currency Wallets 23->72 40 conhost.exe 25->40         started        60 192.168.2.1 unknown unknown 27->60 42 conhost.exe 30->42         started        44 conhost.exe 32->44         started        46 conhost.exe 36->46         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a8b41cb72048c6b7765a40ec5c4b5290542ad544dc38578b1a6cbfac202364d4/
Threat name:
ByteCode-MSIL.Downloader.Seraph
Create hunting rule
Status:
Malicious
First seen:
2022-07-27 07:36:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
16 of 26 (61.54%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vc2bznzajddlo5s2idwfys2ssbkcvvke3q4fpcy2ns72yibdmtka._file
Verdict:
malicious
Similar samples:
0e8425fd51b3a7dc0286a2a063179c5e3c42db14d950670c300646b3cf8e7beb
BluStealer
1e555c2e46ef544275b0a6e1568bc51ec55bb875d6eb939f517d4d21fcf37449
BluStealer
1f4eaf985e503e9aeade9362fbf02edd1d6cec43b7c7df88cbff1420c017518e
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204e06529e75295f8a01b247608340fc3f66311612f6bd518e65c23e7385df0b
BluStealer
3e85b31ff1780031f94570fc9801b6a886564a4caa2acc360d2c65f29b22dbb5
BluStealer
51a7eac38c160c27832b8862d7586e0a042d853ee028afa0d3c740cd5b0a2b0d
BluStealer
a5338c385ea91e86fe18a5ce73e1ec9508f4e8ad2aa78b95228a91baebdedb1b
BluStealer
d2a89003afaf641041d0b9e6105b347a45da9eb13b780403c902f4511f0061ed
BluStealer
db35c1b2866001a5054d699b34dd9b6f8cf6aa8e7d3050facd237fb2633aad65
BluStealer
f7ef64ec582497050725afe8562b18971ba4b828ec640075c15976c7a941ba42
BluStealer
+ 210 additional samples on MalwareBazaar
Result
Malware family:
blustealer
Create hunting rule
Score:
  10/10
Tags:
family:blustealer persistence stealer
Link:
https://tria.ge/reports/220727-je8s3sfbd3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
BluStealer
Unpacked files
SH256 hash:
e4f84582445e98e6368cf6d5ef4962a21d918f9135cbae698d072dbf27106496
MD5 hash:
62327dea43ff21851ec0a68f80a90f01
SHA1 hash:
0a743ce48a60e26e09908d22d273c8c36c58acb3
Link:
https://www.unpac.me/results/d4c0f093-394d-43f8-bae4-be9c31070027/
SH256 hash:
a6acfe617040a5005be0d1675756dc9f09596d3bb2bb3ebc8a2c6881b8c4cfd7
MD5 hash:
db843358b89f4074346cab346720ab06
SHA1 hash:
94d77a5f2d66f20baf557ad30c3ab284665980d9
Link:
https://www.unpac.me/results/d4c0f093-394d-43f8-bae4-be9c31070027/
SH256 hash:
de9f9de8279780ca7f57b031277b48fb19a4218f7fe0db86c539e7a07f3989fd
MD5 hash:
41e6592e5edc2bcef0373888a8f1acaa
SHA1 hash:
63d38774824d85239ff9a4e9b7a3fecd8e801cf6
Link:
https://www.unpac.me/results/d4c0f093-394d-43f8-bae4-be9c31070027/
SH256 hash:
a8b41cb72048c6b7765a40ec5c4b5290542ad544dc38578b1a6cbfac202364d4
MD5 hash:
5b60d5967f298daf26495b9d1ad95636
SHA1 hash:
e874547882aa4d1198835d692622434cca2bfad1
Link:
https://www.unpac.me/results/d4c0f093-394d-43f8-bae4-be9c31070027/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a8b41cb72048/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/294550/

Comments