MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cc306bb2d4ff7a9b6a4526abfe0ee05610bc1f34f8c4b96f465c44412558516f. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments

SHA256 hash: cc306bb2d4ff7a9b6a4526abfe0ee05610bc1f34f8c4b96f465c44412558516f
SHA3-384 hash: 0c4882277b348102db54ce3dd89d1070d85d072f49b77bd5dd356b7986e1afccad0f07d7a3f292d9005e472c55f2db1c
SHA1 hash: cc27ce3d9199b1ab3dbfa6fea943ea5fc1f4d7d6
MD5 hash: d40709798e6695b0f5cbe45e73dfd677
humanhash: violet-two-july-helium
File name:SWIFT SKM_4_5767189090436911808.js.exe
Download: download sample
Signature Formbook
File size:968'704 bytes
First seen:2022-12-08 11:05:13 UTC
Last seen:2022-12-08 12:48:13 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:D2OfFiAGPtdUAXpY+ZmBjHUk+qNng/lxupZMbDF1Uh76xksye1wHe7YnK3o37YU7:yEiPl95hZmBHklxVF1UrsyuwGj0
TLSH T16725CE10F1A95606D47659BC0E7C118143BA39FB6A74C2DE3C8D9CCEEBE2B034795A63
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 9090e49034d8b1b1 (10 x AgentTesla, 7 x Formbook, 3 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
178
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Result
Verdict:
UNKNOWN
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
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 763373 Sample: SWIFT SKM_4_576718909043691... Startdate: 08/12/2022 Architecture: WINDOWS Score: 100 53 Malicious sample detected (through community Yara rule) 2->53 55 Sigma detected: Scheduled temp file as task from temp location 2->55 57 Yara detected AntiVM3 2->57 59 7 other signatures 2->59 9 SWIFT SKM_4_5767189090436911808.js.exe 7 2->9         started        13 PJmIIJITyUiN.exe 5 2->13         started        process3 file4 47 C:\Users\user\AppData\...\PJmIIJITyUiN.exe, PE32 9->47 dropped 49 C:\Users\user\AppData\Local\...\tmp3D75.tmp, XML 9->49 dropped 67 Adds a directory exclusion to Windows Defender 9->67 15 RegSvcs.exe 9->15         started        18 RegSvcs.exe 9->18         started        20 powershell.exe 15 9->20         started        28 2 other processes 9->28 22 RegSvcs.exe 13->22         started        24 schtasks.exe 1 13->24         started        26 RegSvcs.exe 13->26         started        signatures5 process6 signatures7 69 Modifies the context of a thread in another process (thread injection) 15->69 71 Maps a DLL or memory area into another process 15->71 73 Sample uses process hollowing technique 15->73 75 Queues an APC in another process (thread injection) 15->75 30 explorer.exe 15->30 injected 77 Tries to detect virtualization through RDTSC time measurements 18->77 34 conhost.exe 20->34         started        36 conhost.exe 24->36         started        38 conhost.exe 28->38         started        process8 dnsIp9 51 www.le-shoothe.com 30->51 79 System process connects to network (likely due to code injection or exploit) 30->79 40 svchost.exe 30->40         started        43 cmstp.exe 30->43         started        signatures10 process11 signatures12 61 Modifies the context of a thread in another process (thread injection) 40->61 63 Maps a DLL or memory area into another process 40->63 65 Tries to detect virtualization through RDTSC time measurements 40->65 45 cmd.exe 1 40->45         started        process13
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-12-08 11:06:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:a19i rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
f8ac76675367602a6e3361f59a967ae7710d078fc7f7d7bc18c9cc02d4e9e1cc
MD5 hash:
85955f7ee592e21bd5dfd95f8b5e86d5
SHA1 hash:
cc82b53d764c8a015c0ad226add064a846a29e49
SH256 hash:
2bd58fb1f6a8291358990ddbc0f1146d8f49355b300d3e875b6f0e8626460ac9
MD5 hash:
faaa9d48876d747d00ca410943c4b5f5
SHA1 hash:
c51b64bdb8c4d41daea7a0c5216f0870cc36d160
SH256 hash:
21cd7fcd65de82ec1b6a3942dddac95d573b036ed462066c61e0a36f19df45a6
MD5 hash:
bf473578023b999fae61dbef5e9fc99a
SHA1 hash:
7b9bcac2c31e054662086b09786a33ac2ec9370b
SH256 hash:
340ba2312d5cdfc3d89f3f35f627187dcb406e5afea134bc76b04f52f4285df3
MD5 hash:
85f9290aa8900e9fd74b01ee23125706
SHA1 hash:
310eb5e4aea5471b74a6385f1da283b9d8e3d698
SH256 hash:
cc306bb2d4ff7a9b6a4526abfe0ee05610bc1f34f8c4b96f465c44412558516f
MD5 hash:
d40709798e6695b0f5cbe45e73dfd677
SHA1 hash:
cc27ce3d9199b1ab3dbfa6fea943ea5fc1f4d7d6
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