MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c10f72e90f08921781cab13aa7d3a9d21c961cf97f46590eed4c1cbc6ebc1d66. 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: 12


Intelligence 12 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c10f72e90f08921781cab13aa7d3a9d21c961cf97f46590eed4c1cbc6ebc1d66
SHA3-384 hash: 2c50e6e735311bb5115a5796e161f40822b0ceff3ce19e6d2422624bd5083d7049b2ff3acdde3ba9f55044ddb2ba8ab6
SHA1 hash: a759a180a2edda48c16acf56d41736f59fc4fd4c
MD5 hash: a4849ce0ff7b33fce8a4cf542449eeb1
humanhash: sweet-south-alabama-oscar
File name:Remittance_90523_03.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'256'448 bytes
First seen:2024-04-09 14:46:51 UTC
Last seen:2024-04-15 13:18:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 948cc502fe9226992dce9417f952fce3 (1'182 x CredentialFlusher, 446 x Formbook, 231 x AgentTesla)
ssdeep 24576:WqDEvCTbMWu7rQYlBQcBiT6rprG8asWc1YFMvmdTOCipU2mcfwBU:WTvC/MTQYxsWR7asWKY0pKcoB
TLSH T11645C00273C1C022FFAB92334F5AF6515ABD69260123E61F13981DB9BE705B1563E7A3
TrID 68.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.5% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
307
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c10f72e90f08921781cab13aa7d3a9d21c961cf97f46590eed4c1cbc6ebc1d66.exe
Verdict:
No threats detected
Analysis date:
2024-04-09 14:52:01 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b1649db3-b46a-4d23-a897-f5fac987e4e5

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

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Moving a file to the Program Files subdirectory
Replacing files
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit fingerprint formbook keylogger lolbin packed shell32
Link:
https://www.filescan.io/uploads/661554e908ebdfcacdff9e38/reports/9bc3d3fe-74fe-4d37-805f-1cd229285d2a/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/c10f72e90f08921781cab13aa7d3a9d21c961cf97f46590eed4c1cbc6ebc1d66
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/a6f3cbd9-c30e-461c-9674-6099f93e4cd4
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1423090
Signature
Binary is likely a compiled AutoIt script file
Found API chain indicative of sandbox detection
Found direct / indirect Syscall (likely to bypass EDR)
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 submitted file
Queues an APC in another process (thread injection)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c10f72e90f08921781cab13aa7d3a9d21c961cf97f46590eed4c1cbc6ebc1d66
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c10f72e90f08921781cab13aa7d3a9d21c961cf97f46590eed4c1cbc6ebc1d66/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-04-09 06:52:47 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yehxf2ipbcjbpaokwe5kpu5j2iojmhhzp5dfsdxnjqoly3v4dvta._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/240409-r5vm5sdb6s/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Unpacked files
SH256 hash:
450d64aa0d17d97bb432d8cc9db9edd1a0a240f7e0ba787cfc1454fec662f0e5
MD5 hash:
8f48c397da90e0d887a04d42502cd7f1
SHA1 hash:
63822b38d38ea36c2fec51e9cca37bd2de869692
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/33f05c3a-354a-465a-9cee-7a0c6c7bbca1/
Parent samples :
73e2064d3989b863781bff3c15319c8baa58aa68997eb28417ffc7354d1a77e6
2f126ec0408040b102ea8df4cd28074942bc40ce94f68f75353b38e7564ac7b9
ccc2d47913200e1b73cc2195fd00798181dc8ef052aae7ae6b6df00ae45e6ea7
c10f72e90f08921781cab13aa7d3a9d21c961cf97f46590eed4c1cbc6ebc1d66
95313342cd139b86ba566222db379fa3bd3b21cec6aeeb05b5ae9f1b125f9d9a
SH256 hash:
b3f2bcb08ae6ed77b51186dc73ac27afc31c9e3b175914fbc7e932a053024057
MD5 hash:
8edcf081ada9f28a2722afb40ac6e099
SHA1 hash:
9a1d6568a6063fccac7eef51a12cbdaa81b82262
Link:
https://www.unpac.me/results/33f05c3a-354a-465a-9cee-7a0c6c7bbca1/
SH256 hash:
21f694ad2af324da93b032c12b93ce880f1038cd3b33601c6db2925f383337be
MD5 hash:
b93f57334f15e5ffa2462b70f6496b78
SHA1 hash:
f62b7cead5a6349dd2d54bd7e63823d692780b33
Link:
https://www.unpac.me/results/33f05c3a-354a-465a-9cee-7a0c6c7bbca1/
SH256 hash:
bf0f1b40063c5bf77d0c83cfcf3e320bfec9f0295ae4f21c86fffe4479b8052b
MD5 hash:
7e1b766873599f598566d8331c9abd3f
SHA1 hash:
f5a615e6346a9f20856323efb481b3768e50bcb6
Link:
https://www.unpac.me/results/33f05c3a-354a-465a-9cee-7a0c6c7bbca1/
SH256 hash:
6c7590751439b1586812633b84ee3e1c5730d5e09db2e5c1405f1109927b8ebb
MD5 hash:
9670c7cee75b133cb424dac8fd7471e9
SHA1 hash:
ca5aa129765c6b586e6ab86a4adfa46651e2ea42
Link:
https://www.unpac.me/results/33f05c3a-354a-465a-9cee-7a0c6c7bbca1/
SH256 hash:
07c9734db3a9a769b4e70cc9fba496570641fc6be4132f01cd0a2b9234dbcc77
MD5 hash:
a33acc388c2469d3970a2f171e6b07fd
SHA1 hash:
8704e877f3d1059f466eb8cca2098fc44ee55375
Link:
https://www.unpac.me/results/33f05c3a-354a-465a-9cee-7a0c6c7bbca1/
SH256 hash:
7460f293a78fc36fbe220a42b2fe633b43460b9311a8d7dfe10827cb82110fb3
MD5 hash:
3121f7f7299494733ab33c1dbe89dd73
SHA1 hash:
7c2ad9bc38242aee7a6de66a999e30e8d7489e12
Link:
https://www.unpac.me/results/33f05c3a-354a-465a-9cee-7a0c6c7bbca1/
SH256 hash:
6aa1ba095e91ca767872d74d87fab3875f4264aa84209054e8055fca8472b2ab
MD5 hash:
57fbb48ff7d33dc878713496f005f27d
SHA1 hash:
3e53c646977c17ace91fa592a519f729c1184239
Link:
https://www.unpac.me/results/33f05c3a-354a-465a-9cee-7a0c6c7bbca1/
SH256 hash:
c10f72e90f08921781cab13aa7d3a9d21c961cf97f46590eed4c1cbc6ebc1d66
MD5 hash:
a4849ce0ff7b33fce8a4cf542449eeb1
SHA1 hash:
a759a180a2edda48c16acf56d41736f59fc4fd4c
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/33f05c3a-354a-465a-9cee-7a0c6c7bbca1/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c10f72e90f08/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/c10f72e90f08921781cab13aa7d3a9d21c961cf97f46590eed4c1cbc6ebc1d66

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

Executable exe c10f72e90f08921781cab13aa7d3a9d21c961cf97f46590eed4c1cbc6ebc1d66

(this sample)

  
Delivery method
Distributed via e-mail attachment

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
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::GetAce
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoCreateInstanceEx
ole32.dll::CoInitializeSecurity
ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringW
WINMM.dll::timeGetTime
WINMM.dll::waveOutSetVolume
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAce
ADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
ADVAPI32.dll::CreateProcessWithLogonW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
ADVAPI32.dll::OpenThreadToken
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetSystemPowerState
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetAddConnection2W
MPR.dll::WNetUseConnectionW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegConnectRegistryW
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::BlockInput
USER32.dll::CloseDesktop
USER32.dll::CreateMenu
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::FindWindowW

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