MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55911205edcecf1a4337052e070334ad0dfb5b651cb980122a963b811aeda078. 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: 17


Intelligence 17 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 55911205edcecf1a4337052e070334ad0dfb5b651cb980122a963b811aeda078
SHA3-384 hash: 3a5e9d62e51dd64aa7a35c7259ac2c7c687723cd75e0549b4ffbfad05887562c90ee96df561f24da7f95035a8a73f046
SHA1 hash: 662fc90d52e4d9db2ca89b4eccbec7948a25f9f3
MD5 hash: 83759232874676063ca07f71a214ba6d
humanhash: charlie-seven-zulu-cold
File name:Salary Increase.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'075'712 bytes
First seen:2024-07-21 23:41:22 UTC
Last seen:2024-07-22 11:03:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:BAHnh+eWsN3skA4RV1Hom2KXMmHabbr6qd0SinFd5:Yh+ZkldoPK8YabfDd0V
Threatray 1'109 similar samples on MalwareBazaar
TLSH T11C35AD0273D6C036FFAB92739B6AF24156BD79254133852F13981DB9BD701B2223E663
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10523/12/4)
7.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.9% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter mautshim
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
341
Origin country :
ID ID
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
55911205edcecf1a4337052e070334ad0dfb5b651cb980122a963b811aeda078.exe
Verdict:
No threats detected
Analysis date:
2024-07-22 16:08:27 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/80a39e50-b189-41bf-94ae-f67511a65653

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.AutoIt.1413.4239.15488.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=669d9ccb2f6eaff4b90f1a7e
Tags:
Network Stealth Autoit
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit epmicrosoft_visual_cc exploit fingerprint keylogger lolbin microsoft_visual_cc packed shell32
Link:
https://www.filescan.io/uploads/669d9ccd20d8bc991981c078/reports/3601b091-e44b-4304-b756-87d3cb246ce9/overview
Verdict:
Malicious
Labled as:
AIT:Trojan.Nymeria
Link:
https://www.hybrid-analysis.com/sample/55911205edcecf1a4337052e070334ad0dfb5b651cb980122a963b811aeda078
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0711d9b1-2afe-4f01-8c96-3ce5b9f039ba
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1477768
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for sample
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 submitted file
Query firmware table information (likely to detect VMs)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1477768 Sample: Salary Increase.exe Startdate: 22/07/2024 Architecture: WINDOWS Score: 100 32 www.youwu.autos 2->32 34 www.xiaobanhome.com 2->34 36 13 other IPs or domains 2->36 52 Snort IDS alert for network traffic 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 7 other signatures 2->58 11 Salary Increase.exe 4 2->11         started        14 explorer.exe 38 143 2->14         started        signatures3 process4 signatures5 70 Binary is likely a compiled AutoIt script file 11->70 72 Writes to foreign memory regions 11->72 74 Maps a DLL or memory area into another process 11->74 16 svchost.exe 11->16         started        76 Query firmware table information (likely to detect VMs) 14->76 process6 signatures7 44 Modifies the context of a thread in another process (thread injection) 16->44 46 Maps a DLL or memory area into another process 16->46 48 Sample uses process hollowing technique 16->48 50 3 other signatures 16->50 19 explorer.exe 30 1 16->19 injected process8 dnsIp9 38 connect.cybersilk.io 104.26.1.38, 61589, 80 CLOUDFLARENETUS United States 19->38 40 www.jejakunik.com 172.67.187.186, 61590, 80 CLOUDFLARENETUS United States 19->40 42 mypsychedeliceducation.com 3.33.130.190, 57181, 61587, 80 AMAZONEXPANSIONGB United States 19->42 60 System process connects to network (likely due to code injection or exploit) 19->60 23 WWAHost.exe 19->23         started        26 WerFault.exe 21 19->26         started        signatures10 process11 signatures12 62 Modifies the context of a thread in another process (thread injection) 23->62 64 Maps a DLL or memory area into another process 23->64 66 Tries to detect virtualization through RDTSC time measurements 23->66 68 Switches to a custom stack to bypass stack traces 23->68 28 cmd.exe 1 23->28         started        process13 process14 30 conhost.exe 28->30         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/55911205edcecf1a4337052e070334ad0dfb5b651cb980122a963b811aeda078
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/55911205edcecf1a4337052e070334ad0dfb5b651cb980122a963b811aeda078/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2024-07-19 01:07:26 UTC
File Type:
PE (Exe)
Extracted files:
24
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kwirebpnz3hruqzxauxaoazuvug7ww3fds4yaerksy5ycgxnub4a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3ffcd95cd6bd717e4371107605cdb847891190eae063dcf741dbae9bd1528faf
Formbook
4bc87fbfe1c5bc22f4b002a8299d8ca46b8978ce2ca4b6ddaed51234099468a0
Formbook
5d876d62f1291cfc7bf91819bd1fe4ba4da76828e7542704fd2f2605a5fa39b7
Formbook
6f82869adb98bb714d132260ce2764b4d46e31495fb84d5614c9863763e118a2
Formbook
71bfeeb8ef35de17f04b4d6d1b101a28d687341049957f1569f8b147cdc18639
Formbook
99ad43415d3fce1de4b15b26893f60e126645f028602a7a0fff9432b99403433
Formbook
9a565700a3d3c7a802780c0e4ba717b082175fd33b5afc7dcfeb95905b6db784
Formbook
e9e614a16e3250dc0fdd6fd01247ab76f65d146466c5977b06ffb716d7438cae
Formbook
+ 1'099 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ty31 rat spyware stealer trojan
Link:
https://tria.ge/reports/240721-3pzspstann/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Formbook payload
Formbook
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9706c108-b8ab-4ab7-88ae-16dd4c824a33
Unpacked files
SH256 hash:
71e596592a50f12605af97761d19b6fd0f6312ad48b3757a0063160bb16da5a4
MD5 hash:
ae09038376b958b6e8928c0efc3ecb57
SHA1 hash:
20d0212b0ba36b874939892eacf04e94b04ad01c
Detections:
FormBook
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_w0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/63d64394-47ce-41de-9d28-48b3833cd759/
Parent samples :
e9e614a16e3250dc0fdd6fd01247ab76f65d146466c5977b06ffb716d7438cae
55911205edcecf1a4337052e070334ad0dfb5b651cb980122a963b811aeda078
acf03676e5dd002d0dc94a2b50e83dda78d287ee9b07ad2c9659688310015820
SH256 hash:
55911205edcecf1a4337052e070334ad0dfb5b651cb980122a963b811aeda078
MD5 hash:
83759232874676063ca07f71a214ba6d
SHA1 hash:
662fc90d52e4d9db2ca89b4eccbec7948a25f9f3
Detections:
AutoIT_Compiled
Create hunting rule
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/63d64394-47ce-41de-9d28-48b3833cd759/
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/55911205edcecf1a4337052e070334ad0dfb5b651cb980122a963b811aeda078

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:SUSP_Imphash_Mar23_3
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:Internal Research

File information

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

Malspam

Formbook

Executable exe 55911205edcecf1a4337052e070334ad0dfb5b651cb980122a963b811aeda078

(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::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
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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