MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c9913540ced2148e50e55dbbb6c2fac3d0f909646f18f22b974b52f33641e812. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments

SHA256 hash: c9913540ced2148e50e55dbbb6c2fac3d0f909646f18f22b974b52f33641e812
SHA3-384 hash: ea210b2369403da9ec30502694006f8826552a0910003463f4d64761adb88dab3535a0e9a33e1da8dd0572d0bcb104fc
SHA1 hash: c28d4f091f5f2a762641f816a62e625fb7e16ad5
MD5 hash: 81895faac851dd56f820886f4a74eed7
humanhash: papa-california-vegan-virginia
File name:c9913540ced2148e50e55dbbb6c2fac3d0f909646f18f22b974b52f33641e812
Download: download sample
Signature Formbook
File size:620'544 bytes
First seen:2023-07-07 10:09:29 UTC
Last seen:2023-07-07 10:38:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:uPn4SXpaYkhpwHm3QVjp9MBSORnzf9uASi:uPn4SXpaxhpvAVt9M/p0
Threatray 3'419 similar samples on MalwareBazaar
TLSH T117D46A3C18BD1A37F074D6A98FE48463F550D47F39299A32A4DBCB516706EA228C723D
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
275
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c9913540ced2148e50e55dbbb6c2fac3d0f909646f18f22b974b52f33641e812
Verdict:
Malicious activity
Analysis date:
2023-07-07 10:11:46 UTC
Tags:
n/a

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
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Restart of the analyzed sample
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed remcos
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1269079 Sample: xs40nWJPZA.exe Startdate: 07/07/2023 Architecture: WINDOWS Score: 100 59 www.newvoicehouseoflife.shop 2->59 75 Snort IDS alert for network traffic 2->75 77 Found malware configuration 2->77 79 Malicious sample detected (through community Yara rule) 2->79 81 8 other signatures 2->81 11 xs40nWJPZA.exe 7 2->11         started        15 KrPThJaWQg.exe 5 2->15         started        signatures3 process4 file5 51 C:\Users\user\AppData\...\KrPThJaWQg.exe, PE32 11->51 dropped 53 C:\Users\...\KrPThJaWQg.exe:Zone.Identifier, ASCII 11->53 dropped 55 C:\Users\user\AppData\Local\...\tmp7FC7.tmp, XML 11->55 dropped 57 C:\Users\user\AppData\...\xs40nWJPZA.exe.log, ASCII 11->57 dropped 89 Uses schtasks.exe or at.exe to add and modify task schedules 11->89 91 Adds a directory exclusion to Windows Defender 11->91 93 Tries to detect virtualization through RDTSC time measurements 11->93 17 xs40nWJPZA.exe 11->17         started        20 powershell.exe 21 11->20         started        22 powershell.exe 19 11->22         started        28 2 other processes 11->28 95 Multi AV Scanner detection for dropped file 15->95 97 Machine Learning detection for dropped file 15->97 24 KrPThJaWQg.exe 15->24         started        26 schtasks.exe 15->26         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 17->67 69 Maps a DLL or memory area into another process 17->69 71 Sample uses process hollowing technique 17->71 73 Queues an APC in another process (thread injection) 17->73 30 explorer.exe 2 1 17->30 injected 34 conhost.exe 20->34         started        36 conhost.exe 22->36         started        38 conhost.exe 26->38         started        40 conhost.exe 28->40         started        process9 dnsIp10 61 fizyoceyhansicim.com 178.20.227.11, 49702, 80 SPD-NETTR Turkey 30->61 63 www.zbapexsurgical.biz 208.91.197.27, 49698, 80 CONFLUENCE-NETWORK-INCVG Virgin Islands (BRITISH) 30->63 65 7 other IPs or domains 30->65 99 System process connects to network (likely due to code injection or exploit) 30->99 42 help.exe 30->42         started        45 rundll32.exe 30->45         started        signatures11 process12 signatures13 83 Modifies the context of a thread in another process (thread injection) 42->83 85 Maps a DLL or memory area into another process 42->85 87 Tries to detect virtualization through RDTSC time measurements 42->87 47 cmd.exe 42->47         started        process14 process15 49 conhost.exe 47->49         started       
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-06-26 20:48:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:ea04 rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
60e607301173a7f635112bfab8dcdf095395fd4ce64c82a28c3fa1b179526cb7
MD5 hash:
ea15dc3167c86f858bf1fd7839dc0fbd
SHA1 hash:
dd04b0cb73acaed3b56e34fcd3f35fbf47fff92d
Detections:
FormBook win_formbook_w0 win_formbook_auto win_formbook_g0 FormBook win_formbook_w0 win_formbook_auto win_formbook_g0 FormBook win_formbook_w0 win_formbook_auto win_formbook_g0 FormBook win_formbook_w0 win_formbook_auto win_formbook_g0
SH256 hash:
66605594e8a48022eee0e46f56c1b4f736694549a93073c3600a4e89439eb545
MD5 hash:
7e38d0e016317979651981911e1240e9
SHA1 hash:
e08ce3eabf01ae778af01a9d2678a7dd36c36529
SH256 hash:
60e607301173a7f635112bfab8dcdf095395fd4ce64c82a28c3fa1b179526cb7
MD5 hash:
ea15dc3167c86f858bf1fd7839dc0fbd
SHA1 hash:
dd04b0cb73acaed3b56e34fcd3f35fbf47fff92d
Detections:
FormBook win_formbook_w0 win_formbook_auto win_formbook_g0 FormBook win_formbook_w0 win_formbook_auto win_formbook_g0 FormBook win_formbook_w0 win_formbook_auto win_formbook_g0 FormBook win_formbook_w0 win_formbook_auto win_formbook_g0
SH256 hash:
66605594e8a48022eee0e46f56c1b4f736694549a93073c3600a4e89439eb545
MD5 hash:
7e38d0e016317979651981911e1240e9
SHA1 hash:
e08ce3eabf01ae778af01a9d2678a7dd36c36529
SH256 hash:
867c70bd4fb8c0b35a98109c398d54c47d3042dca3e91fad56a4449fca9bbec3
MD5 hash:
ddc8615f9751995ed3950b1ca6977412
SHA1 hash:
62350c8523f0ff5cda8979330237c66c19d27c74
SH256 hash:
6442dc477e6022c9f595ae6d192e9b0b109944c5551e1fa4c921338696fec20a
MD5 hash:
56aff6dbb094587524ee9a27f1810035
SHA1 hash:
47fa6197798b851686760d8dd0984b305b71b6f6
SH256 hash:
867c70bd4fb8c0b35a98109c398d54c47d3042dca3e91fad56a4449fca9bbec3
MD5 hash:
ddc8615f9751995ed3950b1ca6977412
SHA1 hash:
62350c8523f0ff5cda8979330237c66c19d27c74
SH256 hash:
6442dc477e6022c9f595ae6d192e9b0b109944c5551e1fa4c921338696fec20a
MD5 hash:
56aff6dbb094587524ee9a27f1810035
SHA1 hash:
47fa6197798b851686760d8dd0984b305b71b6f6
SH256 hash:
60e607301173a7f635112bfab8dcdf095395fd4ce64c82a28c3fa1b179526cb7
MD5 hash:
ea15dc3167c86f858bf1fd7839dc0fbd
SHA1 hash:
dd04b0cb73acaed3b56e34fcd3f35fbf47fff92d
Detections:
FormBook win_formbook_w0 win_formbook_auto win_formbook_g0 FormBook win_formbook_w0 win_formbook_auto win_formbook_g0 FormBook win_formbook_w0 win_formbook_auto win_formbook_g0 FormBook win_formbook_w0 win_formbook_auto win_formbook_g0
SH256 hash:
66605594e8a48022eee0e46f56c1b4f736694549a93073c3600a4e89439eb545
MD5 hash:
7e38d0e016317979651981911e1240e9
SHA1 hash:
e08ce3eabf01ae778af01a9d2678a7dd36c36529
SH256 hash:
867c70bd4fb8c0b35a98109c398d54c47d3042dca3e91fad56a4449fca9bbec3
MD5 hash:
ddc8615f9751995ed3950b1ca6977412
SHA1 hash:
62350c8523f0ff5cda8979330237c66c19d27c74
SH256 hash:
6442dc477e6022c9f595ae6d192e9b0b109944c5551e1fa4c921338696fec20a
MD5 hash:
56aff6dbb094587524ee9a27f1810035
SHA1 hash:
47fa6197798b851686760d8dd0984b305b71b6f6
SH256 hash:
60e607301173a7f635112bfab8dcdf095395fd4ce64c82a28c3fa1b179526cb7
MD5 hash:
ea15dc3167c86f858bf1fd7839dc0fbd
SHA1 hash:
dd04b0cb73acaed3b56e34fcd3f35fbf47fff92d
Detections:
FormBook win_formbook_w0 win_formbook_auto win_formbook_g0 FormBook win_formbook_w0 win_formbook_auto win_formbook_g0 FormBook win_formbook_w0 win_formbook_auto win_formbook_g0 FormBook win_formbook_w0 win_formbook_auto win_formbook_g0
SH256 hash:
66605594e8a48022eee0e46f56c1b4f736694549a93073c3600a4e89439eb545
MD5 hash:
7e38d0e016317979651981911e1240e9
SHA1 hash:
e08ce3eabf01ae778af01a9d2678a7dd36c36529
SH256 hash:
867c70bd4fb8c0b35a98109c398d54c47d3042dca3e91fad56a4449fca9bbec3
MD5 hash:
ddc8615f9751995ed3950b1ca6977412
SHA1 hash:
62350c8523f0ff5cda8979330237c66c19d27c74
SH256 hash:
6442dc477e6022c9f595ae6d192e9b0b109944c5551e1fa4c921338696fec20a
MD5 hash:
56aff6dbb094587524ee9a27f1810035
SHA1 hash:
47fa6197798b851686760d8dd0984b305b71b6f6
SH256 hash:
c9913540ced2148e50e55dbbb6c2fac3d0f909646f18f22b974b52f33641e812
MD5 hash:
81895faac851dd56f820886f4a74eed7
SHA1 hash:
c28d4f091f5f2a762641f816a62e625fb7e16ad5
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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Comments