MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0c3a38ca1a01a40daf13699cae74d8903aeb6362f75611dbd8df3430b850026b. 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


Formbook


Vendor detections: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0c3a38ca1a01a40daf13699cae74d8903aeb6362f75611dbd8df3430b850026b
SHA3-384 hash: 0895dc74c29d0d7e248bb2145710a991caf376e56344aaf93c81eb0de992079a3c74c55567e54e8b265a0433d952dedf
SHA1 hash: 3c5adfc7b212ff17a95841ebc9f91acd6d9e666a
MD5 hash: 4c0bd28e83a123669760202d0316455c
humanhash: lamp-tennessee-robin-mango
File name:2024164846750.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:577'720 bytes
First seen:2024-04-16 07:40:11 UTC
Last seen:2024-04-16 08:28:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (527 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 12288:g9gnHwjTbE+6Eg6z55aa3J0B3E2h/Ya1g6ESmLjPLoSBH8:dnHuzSa3J0BdZ+JSeoS2
TLSH T111C423852720C1BFE8EB4B3104EECEFB5FAA95053561BA13235ABC597887F01D43E944
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) (4504/4/1)
File icon (PE):PE icon
dhash icon c059f6fefcfcfc7c (2 x Formbook, 1 x GuLoader)
Reporter abuse_ch
Tags:exe FormBook signed

Code Signing Certificate

Organisation:Acute
Issuer:Acute
Algorithm:sha256WithRSAEncryption
Valid from:2023-08-02T02:55:02Z
Valid to:2026-08-01T02:55:02Z
Serial number: 65cfb22f8403e6924aa805963a4767c5c3fea8e8
Thumbprint Algorithm:SHA256
Thumbprint: 5d80bbe1cc137e333c040892a0cfb9aba5ef87746d85a6d6a959bbaa1e544c87
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
323
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
0c3a38ca1a01a40daf13699cae74d8903aeb6362f75611dbd8df3430b850026b.exe
Verdict:
Malicious activity
Analysis date:
2024-04-16 07:45:09 UTC
Tags:
formbook xloader stealer spyware
Link:
https://app.any.run/tasks/8a4545be-b6b1-472e-8bc4-ae84c739b56c

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
Creating a file in the %temp% subdirectories
Searching for the window
Searching for the Windows task manager window
Launching a process
Creating a process with a hidden window
Running batch commands
Using the Windows Management Instrumentation requests
Creating a file
Moving a file to the Program Files subdirectory
Replacing files
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/0c3a38ca1a01a40daf13699cae74d8903aeb6362f75611dbd8df3430b850026b
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:
Malicious
Link:
https://analyze.intezer.com/analyses/81c0705a-594f-4d8e-bc9a-1650a23d84b2
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1426541
Signature
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Found suspicious powershell code related to unpacking or dynamic code loading
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Obfuscated command line found
Performs DNS queries to domains with low reputation
Powershell drops PE file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Script Execution From Temp Folder
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1426541 Sample: 2024164846750.exe Startdate: 16/04/2024 Architecture: WINDOWS Score: 100 51 www.eternalsunrise.xyz 2->51 53 www.n-benriya002.com 2->53 55 5 other IPs or domains 2->55 81 Multi AV Scanner detection for domain / URL 2->81 83 Malicious sample detected (through community Yara rule) 2->83 85 Antivirus detection for URL or domain 2->85 89 4 other signatures 2->89 11 2024164846750.exe 1 108 2->11         started        signatures3 87 Performs DNS queries to domains with low reputation 51->87 process4 file5 45 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 11->45 dropped 47 C:\Users\user\AppData\...47ovemfid116.Ops3, ASCII 11->47 dropped 99 Suspicious powershell command line found 11->99 15 powershell.exe 20 11->15         started        signatures6 process7 file8 49 C:\Users\user\AppData\Local\Tempbehaviorgraphajas.exe, PE32 15->49 dropped 65 Obfuscated command line found 15->65 67 Writes to foreign memory regions 15->67 69 Sample uses process hollowing technique 15->69 71 2 other signatures 15->71 19 Gajas.exe 2 7 15->19         started        23 conhost.exe 15->23         started        25 cmd.exe 1 15->25         started        signatures9 process10 dnsIp11 57 103.14.155.180, 49714, 80 EASYHOST-HKEASYHOSTSOLUTIONLIMITEDHK unknown 19->57 91 Multi AV Scanner detection for dropped file 19->91 93 Maps a DLL or memory area into another process 19->93 27 ptSXBiSbXWQAgtYsrSEqjvTn.exe 19->27 injected 30 cmd.exe 1 19->30         started        signatures12 process13 signatures14 97 Found direct / indirect Syscall (likely to bypass EDR) 27->97 32 cmd.exe 13 27->32         started        35 conhost.exe 30->35         started        37 reg.exe 1 1 30->37         started        process15 signatures16 73 Tries to steal Mail credentials (via file / registry access) 32->73 75 Tries to harvest and steal browser information (history, passwords, etc) 32->75 77 Modifies the context of a thread in another process (thread injection) 32->77 79 2 other signatures 32->79 39 ptSXBiSbXWQAgtYsrSEqjvTn.exe 32->39 injected 43 firefox.exe 32->43         started        process17 dnsIp18 59 www.eternalsunrise.xyz 66.29.135.159, 49730, 49731, 49732 ADVANTAGECOMUS United States 39->59 61 n-benriya002.com 219.94.128.41, 49722, 49723, 49724 SAKURA-CSAKURAInternetIncJP Japan 39->61 63 3 other IPs or domains 39->63 95 Found direct / indirect Syscall (likely to bypass EDR) 39->95 signatures19
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0c3a38ca1a01a40daf13699cae74d8903aeb6362f75611dbd8df3430b850026b/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2024-04-16 00:52:21 UTC
File Type:
PE (Exe)
Extracted files:
64
AV detection:
16 of 23 (69.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bq5drsq2agsa3lytngok45gysa5owy3c65lbdw6y342dbocqajvq._file
Verdict:
unknown
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/240416-jh4zasce96/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Loads dropped DLL
Unpacked files
SH256 hash:
938580b466533dfa1461e9858fd106b60e1a52b713380915cc03afd3e4b4573c
MD5 hash:
98bdb37511634dad8d1236d91d373b26
SHA1 hash:
778cf74b4f8860cc378fa4e61aeba318197783ce
Link:
https://www.unpac.me/results/da4bef0c-8254-4c87-872f-6d083c967dd6/
SH256 hash:
f7d98be26c813724c7cb673b53475fe660d3ef4f9930d57a550c91578c660e91
MD5 hash:
723646252e79cbb15c7817360f93a6d2
SHA1 hash:
c9ce61d71b7377456ab49c823fc756336b01f7b5
Link:
https://www.unpac.me/results/da4bef0c-8254-4c87-872f-6d083c967dd6/
SH256 hash:
0c3a38ca1a01a40daf13699cae74d8903aeb6362f75611dbd8df3430b850026b
MD5 hash:
4c0bd28e83a123669760202d0316455c
SHA1 hash:
3c5adfc7b212ff17a95841ebc9f91acd6d9e666a
Link:
https://www.unpac.me/results/da4bef0c-8254-4c87-872f-6d083c967dd6/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0c3a38ca1a01/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/0c3a38ca1a01a40daf13699cae74d8903aeb6362f75611dbd8df3430b850026b

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_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::SetFileSecurityW
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDiskFreeSpaceW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileExW
KERNEL32.dll::MoveFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::OpenClipboard
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

Comments