MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1cf4b07955c77e1a4845a1da20bb2cb6d2d244bed78935ef6bec6512d9b5114b. 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


RecordBreaker


Vendor detections: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1cf4b07955c77e1a4845a1da20bb2cb6d2d244bed78935ef6bec6512d9b5114b
SHA3-384 hash: a35574aedc23775437c19ffa4934873928d4c6af1f04ed3471a5834400141d8bb092d257d21f229e3ee3d86956e166a9
SHA1 hash: 7d8b7f9be238d7d4f7896b23dd61f80b27aec51f
MD5 hash: a860a37e31d2b0c3de413ede8efc5c7e
humanhash: sweet-lemon-low-single
File name:a860a37e31d2b0c3de413ede8efc5c7e.exe
Download: download sample
Signature RecordBreaker
Create hunting rule
File size:300'544 bytes
First seen:2023-10-10 18:00:54 UTC
Last seen:2023-10-10 18:35:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash dbf0bd1564c8c042aee5632e8fe37af0 (2 x Tofsee, 2 x RecordBreaker, 1 x LummaStealer)
ssdeep 3072:chtLq3VBD25S660AuqGcD/c6ygXbLi8BAo1BTC+SwjP/a4:2qD25S660AuqlPQoXzz
Threatray 2'150 similar samples on MalwareBazaar
TLSH T16B548E03B3A1AC21E5279B328D2DD2A5373EFC918ED5679A33587F2F08711A1C672712
TrID 37.3% (.EXE) Win64 Executable (generic) (10523/12/4)
17.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
16.0% (.EXE) Win32 Executable (generic) (4505/5/1)
7.3% (.ICL) Windows Icons Library (generic) (2059/9)
7.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 70d0dfc8d2d9d2dd (1 x RecordBreaker)
Reporter abuse_ch
Tags:exe recordbreaker


Avatar
abuse_ch
RecordBreaker C2:
http://93.185.166.154/

Intelligence

File Origin
# of uploads :
2
# of downloads :
338
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
smoke
Create hunting rule
ID:
1
File name:
a860a37e31d2b0c3de413ede8efc5c7e.exe
Verdict:
Malicious activity
Analysis date:
2023-10-10 18:03:09 UTC
Tags:
sinkhole opendir loader smoke stealer raccoon recordbreaker
Link:
https://app.any.run/tasks/19ba7504-6752-4bc9-8c28-2482b656e111

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
SmokeLoader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/452966/
Detection(s):
SecuriteInfo.com.Win32.BotX-gen.9198.1800.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
DNS request
Sending an HTTP POST request
Unauthorized injection to a system process
Enabling autorun by creating a file
Gathering data
Gathering data
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/1cf4b07955c77e1a4845a1da20bb2cb6d2d244bed78935ef6bec6512d9b5114b
Result
Verdict:
MALICIOUS
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/70653945-de5c-4f48-97e4-00f9e1b0a80d
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1323157
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Detected unpacking (changes PE section rights)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1323157 Sample: pzj2YW29Oc.exe Startdate: 10/10/2023 Architecture: WINDOWS Score: 100 21 wirtshauspost.at 2->21 27 Found malware configuration 2->27 29 Malicious sample detected (through community Yara rule) 2->29 31 Antivirus detection for URL or domain 2->31 33 5 other signatures 2->33 7 pzj2YW29Oc.exe 2->7         started        10 urjdggv 2->10         started        signatures3 process4 signatures5 35 Detected unpacking (changes PE section rights) 7->35 37 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->37 39 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 7->39 47 3 other signatures 7->47 12 explorer.exe 6 3 7->12 injected 41 Antivirus detection for dropped file 10->41 43 Multi AV Scanner detection for dropped file 10->43 45 Machine Learning detection for dropped file 10->45 process6 dnsIp7 23 175.120.254.9, 49742, 49743, 49744 SKB-ASSKBroadbandCoLtdKR Korea Republic of 12->23 25 wirtshauspost.at 211.171.233.129, 49713, 49714, 49715 LGDACOMLGDACOMCorporationKR Korea Republic of 12->25 17 C:\Users\user\AppData\Roaming\urjdggv, PE32 12->17 dropped 19 C:\Users\user\...\urjdggv:Zone.Identifier, ASCII 12->19 dropped 49 System process connects to network (likely due to code injection or exploit) 12->49 51 Benign windows process drops PE files 12->51 53 Deletes itself after installation 12->53 55 Hides that the sample has been downloaded from the Internet (zone.identifier) 12->55 file8 signatures9
Detection:
recordbreaker
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1cf4b07955c77e1a4845a1da20bb2cb6d2d244bed78935ef6bec6512d9b5114b/
Threat name:
Win32.Trojan.Zenpak
Create hunting rule
Status:
Malicious
First seen:
2023-10-10 18:01:05 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
16 of 23 (69.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dt2la6kvy57buscfuhncbozmw3jnerf626etl33l5rsrfwnvcffq._file
Verdict:
malicious
Similar samples:
1c47603c095d30407222513fe1349e29393b1dccf07db80e99435c90734d8752
RecordBreaker
201fb0901529270bdf56cb9d8d432a28040be664d49e041f4a7c88b8ec5150b6
RecordBreaker
2a47c2d84f330efa04265b34e7dc1fd149954c5f1110c6896414f313b7ce17a2
RecordBreaker
35ba91ddf0d41590d0de137bc1d6e5524d8a84ecfabdae793e6b3a499f2c67d4
RecordBreaker
4532489becbdf07bc0a932486ab95b497113f5600c7646b635eaea9bcfa430cd
RecordBreaker
6a455892dc6b808ff4f012010f20ad4bbf16b881b9c235d98c85565591289012
RecordBreaker
6f015d2ecc877fdc3d3afec3e0172b3d1c01f5a0a723c7c66780bb2ce6ef5290
RecordBreaker
9d314f7bb979238d429d772e28d7a679fd4391db5d3581666a7f4207061be785
RecordBreaker
a0038a7651f4408728f4a8c7a2abe43b237fc9dc6645fa34e5c4d9c212658878
RecordBreaker
ed3d3c7ea2def6256c7c068239abf27ad41589859675386a391dbb30b07eb57c
RecordBreaker
+ 2'140 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:pub1 backdoor trojan
Link:
https://tria.ge/reports/231010-wlvw1sfc5x/
Behaviour
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Uses Task Scheduler COM API
Deletes itself
SmokeLoader
Malware Config
C2 Extraction:
http://wirtshauspost.at/tmp/
http://msktk.ru/tmp/
http://soetegem.com/tmp/
http://gromograd.ru/tmp/
http://talesofpirates.net/tmp/
Unpacked files
SH256 hash:
520163d1e3b4ac0b324cc02a1a63dde672cc11d2b7f5113993b04aa8c3ac0306
MD5 hash:
3c3fe2ea31124a0f22457207e5f84e79
SHA1 hash:
3ad3a6bcd05f431572f96bce57f3811f513d9be4
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/a4e12774-32d1-440b-a06a-8ec559570c2d/
Parent samples :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 hash:
1cf4b07955c77e1a4845a1da20bb2cb6d2d244bed78935ef6bec6512d9b5114b
MD5 hash:
a860a37e31d2b0c3de413ede8efc5c7e
SHA1 hash:
7d8b7f9be238d7d4f7896b23dd61f80b27aec51f
Link:
https://www.unpac.me/results/a4e12774-32d1-440b-a06a-8ec559570c2d/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1cf4b07955c7/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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:pe_no_import_table
Create hunting rule
Author:qux
Description:Detects exe does not have import table
Rule name:Windows_Trojan_Smokeloader_3687686f
Create hunting rule
Author:Elastic Security

File information

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

Web download

RecordBreaker

Executable exe 1cf4b07955c77e1a4845a1da20bb2cb6d2d244bed78935ef6bec6512d9b5114b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2712491/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2712462/
Cape
Cape
https://www.capesandbox.com/analysis/452966/

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