MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c7adce3459f21a1afb62f779d8baaa2ea3e7614b8fa312ac67725d532c15c54b. 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


Mimic


Vendor detections: 15


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

SHA256 hash: c7adce3459f21a1afb62f779d8baaa2ea3e7614b8fa312ac67725d532c15c54b
SHA3-384 hash: c252e92d85aa0a7b3327b6f4f93c8179bfb2bc6ff26641dd797df5ec04f9c26e48753016e29fd70eb8e4e78fb897c9cd
SHA1 hash: 26f49090585d31dca8dde83106c0a851f00f2f18
MD5 hash: 2a613d677cc3e2991dcd954e9413c40c
humanhash: eight-washington-yankee-paris
File name:mimicransomware_enc_infected.exe
Download: download sample
Signature Mimic
Create hunting rule
File size:2'487'744 bytes
First seen:2024-04-29 08:51:23 UTC
Last seen:2024-04-29 09:19:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e92b2275a730f59940462780c383a1b0 (26 x CryptOne, 3 x Loki, 2 x Mimic)
ssdeep 49152:I/oSNzCxuPz3v/EekOEQ5ZlC2WQcyDJFD6BaKAjB8eJMv+8KwXkZx+jau:I/oCCQv/EeJESlC2WbyDukrBDJMGXjG
TLSH T1AEB52322BAD09971D57318B626F69630647CBC5103B79DEB93943A3E7E301D0DA327A3
TrID 91.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.6% (.EXE) Win64 Executable (generic) (10523/12/4)
1.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4504/4/1)
0.6% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 9494b494d4aeaeac (832 x DCRat, 172 x RedLineStealer, 134 x CryptOne)
Reporter Anonymous
Tags:exe Mimic mimicransomwaresample2

Intelligence

File Origin
# of uploads :
2
# of downloads :
367
Origin country :
TR TR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c7adce3459f21a1afb62f779d8baaa2ea3e7614b8fa312ac67725d532c15c54b.exe
Verdict:
Malicious activity
Analysis date:
2024-04-29 08:52:28 UTC
Tags:
mimic ransomware
Link:
https://app.any.run/tasks/af73e042-2c5a-4320-acf4-9f141ef38c64

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Modifying a system file
Using the Windows Management Instrumentation requests
Disabling the operating system update service
Changing the Windows explorer settings
Preventing system recovery
Creating a file in the mass storage device
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun with the shell\open\command registry branches
Enabling autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint lolbin overlay packed setupapi shdocvw shell32
Link:
https://www.filescan.io/uploads/662f5fb347bfd8641eba1e13/reports/a9c92a3c-33c8-4a57-b290-3bd8a0f86f90/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/c7adce3459f21a1afb62f779d8baaa2ea3e7614b8fa312ac67725d532c15c54b
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.
Malware family:
N3ww4v3 Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/16518b2d-8445-4656-ac4b-9c9c38858019
Result
Threat name:
Mimic
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1433191
Signature
Antivirus detection for dropped file
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to clear event logs
Contains functionality to compare user and computer (likely to detect sandboxes)
Creates an undocumented autostart registry key
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
Potentially malicious time measurement code found
Yara detected Mimic Ransomware
Yara detected RansomwareGeneric18
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1433191 Sample: mimicransomware_enc_infected.exe Startdate: 29/04/2024 Architecture: WINDOWS Score: 100 62 Malicious sample detected (through community Yara rule) 2->62 64 Multi AV Scanner detection for submitted file 2->64 66 Yara detected RansomwareGeneric18 2->66 68 3 other signatures 2->68 14 mimicransomware_enc_infected.exe 5 2->14         started        17 encrypt.exe 2->17         started        process3 file4 58 C:\tempcrc\encrypt.exe, PE32 14->58 dropped 60 C:\tempcrcverything32.dll, PE32 14->60 dropped 19 encrypt.exe 2 4 14->19         started        process5 file6 54 C:\Users\user\AppData\Local\...\encrypt.exe, PE32 19->54 dropped 56 C:\Users\user\AppData\...verything32.dll, PE32 19->56 dropped 70 Antivirus detection for dropped file 19->70 72 Multi AV Scanner detection for dropped file 19->72 74 Contains functionality to bypass UAC (CMSTPLUA) 19->74 76 4 other signatures 19->76 23 encrypt.exe 19->23         started        26 encrypt.exe 19->26         started        signatures7 process8 signatures9 78 Antivirus detection for dropped file 23->78 80 Multi AV Scanner detection for dropped file 23->80 82 Contains functionality to bypass UAC (CMSTPLUA) 23->82 84 3 other signatures 23->84 28 encrypt.exe 23->28         started        30 encrypt.exe 26->30         started        process10 process11 32 encrypt.exe 28->32         started        34 encrypt.exe 30->34         started        process12 36 encrypt.exe 32->36         started        38 encrypt.exe 34->38         started        process13 40 encrypt.exe 36->40         started        42 encrypt.exe 38->42         started        process14 44 encrypt.exe 40->44         started        46 encrypt.exe 42->46         started        process15 48 encrypt.exe 44->48         started        50 encrypt.exe 46->50         started        process16 52 encrypt.exe 48->52         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c7adce3459f21a1afb62f779d8baaa2ea3e7614b8fa312ac67725d532c15c54b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c7adce3459f21a1afb62f779d8baaa2ea3e7614b8fa312ac67725d532c15c54b/
Threat name:
Win32.Ransomware.FileCoder
Create hunting rule
Status:
Malicious
First seen:
2024-04-29 08:52:06 UTC
File Type:
PE (Exe)
Extracted files:
21
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=y6w44ncz6inbv63c6545rovkf2r6oyklr6rrfldhojovglavyvfq._file
Verdict:
malicious
Result
Malware family:
mimic
Create hunting rule
Score:
  10/10
Tags:
family:mimic evasion persistence ransomware
Link:
https://tria.ge/reports/240429-ksqp4afa8v/
Behaviour
Checks SCSI registry key(s)
Modifies registry class
Opens file in notepad (likely ransom note)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Uses Task Scheduler COM API
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
Drops file in Windows directory
Adds Run key to start application
Enumerates connected drives
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Modifies system executable filetype association
Deletes System State backups
Sets file execution options in registry
Clears Windows event logs
Modifies boot configuration data using bcdedit
Detects Mimic ransomware
Mimic
Modifies security service
Unpacked files
SH256 hash:
b63ce033086be47d1add23a2c3f4bc63bc2292387ef930e4d5a144f12fea07d6
MD5 hash:
cb657b72258f7c7f1d29cb99344944f7
SHA1 hash:
3533b2d8a4fda0bccedc3e86babac8780730df38
Detections:
win_mimic_auto
Create hunting rule
Detect_Mimic_Ransomware
Create hunting rule
INDICATOR_SUSPICIOUS_ClearWinLogs
Create hunting rule
INDICATOR_SUSPICIOUS_GENRansomware
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
INDICATOR_SUSPICIOUS_USNDeleteJournal
Create hunting rule
Link:
https://www.unpac.me/results/2926aa3c-caca-48ea-8cc2-45ce188066c3/
SH256 hash:
033e5ccd21b326f7dbda38e2b1a8a1b0e325f8f8c31bab80982a4f495662016a
MD5 hash:
4ce81b0e69565f407e0fe61f8c07c470
SHA1 hash:
f44cfcc7004c4751b78fa52251f48f4ad2e78a04
Link:
https://www.unpac.me/results/2926aa3c-caca-48ea-8cc2-45ce188066c3/
SH256 hash:
c7adce3459f21a1afb62f779d8baaa2ea3e7614b8fa312ac67725d532c15c54b
MD5 hash:
2a613d677cc3e2991dcd954e9413c40c
SHA1 hash:
26f49090585d31dca8dde83106c0a851f00f2f18
Link:
https://www.unpac.me/results/2926aa3c-caca-48ea-8cc2-45ce188066c3/
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/c7adce3459f21a1afb62f779d8baaa2ea3e7614b8fa312ac67725d532c15c54b

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:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants

File information

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

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdiplusShutdown
gdiplus.dll::GdipAlloc
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::AttachConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::FreeConsole
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::MoveFileExW

Comments