MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cbaab74c7babdfbadf51792aa697c1b752d0b7eb1a1f06a95ba81e6b3e911b01. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments

SHA256 hash: cbaab74c7babdfbadf51792aa697c1b752d0b7eb1a1f06a95ba81e6b3e911b01
SHA3-384 hash: 4eae7231842528e89e22fbd405410485afab6134f86df91b32327888943de9ca2a637eebc40eb93c85d35f62eef85909
SHA1 hash: 85002db38b117d2e4028b9dd45c5485e87a73a31
MD5 hash: bd8094e710362d51234298ecaa856ca2
humanhash: dakota-nevada-lactose-diet
File name:muestra de orden de compra.exe
Download: download sample
Signature Formbook
File size:1'070'592 bytes
First seen:2022-10-11 18:53:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:6iPpOUshSbtpcJAZadE6mKCM9OrDPg29RAQSQy4A8:6iRZbtKJAyl59GT3DAtQy4A
Threatray 16'212 similar samples on MalwareBazaar
TLSH T12B357C7E269A4907D8157235C483D1F32AFBAD506062D2CB6AC72F5FBC512BF950338A
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 9aa298d4d4b8a29a (18 x SnakeKeylogger, 10 x Formbook, 5 x Loki)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
271
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
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 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 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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 720856 Sample: muestra de orden de compra.exe Startdate: 11/10/2022 Architecture: WINDOWS Score: 100 76 Snort IDS alert for network traffic 2->76 78 Malicious sample detected (through community Yara rule) 2->78 80 Antivirus detection for URL or domain 2->80 82 11 other signatures 2->82 10 muestra de orden de compra.exe 7 2->10         started        14 TNawek.exe 5 2->14         started        process3 file4 52 C:\Users\user\AppData\Roaming\TNawek.exe, PE32 10->52 dropped 54 C:\Users\user\...\TNawek.exe:Zone.Identifier, ASCII 10->54 dropped 56 C:\Users\user\AppData\Local\...\tmpB753.tmp, XML 10->56 dropped 58 C:\...\muestra de orden de compra.exe.log, ASCII 10->58 dropped 90 Writes to foreign memory regions 10->90 92 Adds a directory exclusion to Windows Defender 10->92 94 Injects a PE file into a foreign processes 10->94 16 RegSvcs.exe 10->16         started        19 RegSvcs.exe 10->19         started        21 powershell.exe 21 10->21         started        23 schtasks.exe 1 10->23         started        96 Machine Learning detection for dropped file 14->96 25 RegSvcs.exe 14->25         started        27 schtasks.exe 1 14->27         started        signatures5 process6 signatures7 66 Modifies the context of a thread in another process (thread injection) 16->66 68 Maps a DLL or memory area into another process 16->68 70 Sample uses process hollowing technique 16->70 72 Queues an APC in another process (thread injection) 16->72 29 explorer.exe 16->29 injected 74 Tries to detect virtualization through RDTSC time measurements 19->74 33 conhost.exe 21->33         started        35 conhost.exe 23->35         started        37 chkdsk.exe 25->37         started        39 conhost.exe 27->39         started        process8 dnsIp9 60 www.yudist.com 172.87.195.104, 49703, 80 HENGTONG-IDC-LLCUS United States 29->60 62 www.moviestarplent.com 154.94.81.84, 49700, 80 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 29->62 64 9 other IPs or domains 29->64 98 System process connects to network (likely due to code injection or exploit) 29->98 41 rundll32.exe 29->41         started        44 autochk.exe 29->44         started        46 conhost.exe 33->46         started        100 Tries to detect virtualization through RDTSC time measurements 37->100 signatures10 process11 signatures12 84 Modifies the context of a thread in another process (thread injection) 41->84 86 Maps a DLL or memory area into another process 41->86 88 Tries to detect virtualization through RDTSC time measurements 41->88 48 cmd.exe 1 41->48         started        process13 process14 50 conhost.exe 48->50         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-10-11 17:50:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
20 of 41 (48.78%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:de19 rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Enumerates system info in registry
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
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
af7ac1171b44c9a949ad80bfaf05095048d0b74cfb527f66479e22f47d340110
MD5 hash:
f696dc0e00cb8f70799ac3fcaa5f9f6a
SHA1 hash:
cde2283de5b89639ea52f6388feef8f77efc63ce
SH256 hash:
c2e3f6205e24fd46511bb12c33bc83a81dcbd73dd26a2372aa09b118e3a4def8
MD5 hash:
c2dfa81697299b49a168b32ffb8503cf
SHA1 hash:
cd03fb3a1b52109eebb25e54ed459ed59663d56a
SH256 hash:
70dfa4c873605ab0fcdcb62be2a970da110535280d8dc88261edbe1ed2865307
MD5 hash:
d5b0f8aff064b3e828421b48efccd312
SHA1 hash:
724f4bc7ab4e08c45562748b739c8f7496a5ad8f
SH256 hash:
c82717d38c5676ad5f2a47cb3e9581e127f0a01d248f9e914bb8496318b385e5
MD5 hash:
62e32f01b12f3845c3aff52ddb214cf5
SHA1 hash:
39779c1b51a7475151cc0c64c225b149a4d4958a
SH256 hash:
cbaab74c7babdfbadf51792aa697c1b752d0b7eb1a1f06a95ba81e6b3e911b01
MD5 hash:
bd8094e710362d51234298ecaa856ca2
SHA1 hash:
85002db38b117d2e4028b9dd45c5485e87a73a31
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.

Malspam

Formbook

Executable exe cbaab74c7babdfbadf51792aa697c1b752d0b7eb1a1f06a95ba81e6b3e911b01

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

Comments