MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4c9d27ea805c32e7f0e66dc0d9534d8fbd87f4c1327727b2e1e9ae937f02c45. 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 3 File information Comments

SHA256 hash: c4c9d27ea805c32e7f0e66dc0d9534d8fbd87f4c1327727b2e1e9ae937f02c45
SHA3-384 hash: 50325abd6cf0230fc8e8b8a95697e4f09169988ba35a738a06e9fa7b8252585e637203c90859d3827f7b4be0c0b96dc3
SHA1 hash: b96d8e6c3278698624e228f09de44815b1d90905
MD5 hash: 0bbbecc3323e753a087a19b3cc4edabd
humanhash: triple-salami-crazy-victor
File name:Inquiry Order 26-09-2021.exe
Download: download sample
Signature Formbook
File size:837'632 bytes
First seen:2021-09-27 08:28:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:Y3tgU8yKCGi07iXLiUrsjA4a2DWgRkE96Lnu4noarOgZVs6Ydyr+TQXfrj8xhfsU:G8IFOF+8GpNexvo/24G9q6+y
Threatray 9'645 similar samples on MalwareBazaar
TLSH T1AB05AE0962ACAB4EC5BF87FEB01341181372EE4B7E0DD6059EC271E91E75BB14A4358B
File icon (PE):PE icon
dhash icon 00868ecccce8cc10 (13 x AgentTesla, 9 x Formbook, 2 x NanoCore)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
1
# of downloads :
179
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Inquiry-URGENT.exe
Verdict:
Malicious activity
Analysis date:
2021-09-27 07:18:57 UTC
Tags:
trojan formbook stealer

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
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
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
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 491272 Sample: Inquiry Order 26-09-2021.exe Startdate: 27/09/2021 Architecture: WINDOWS Score: 100 30 www.vcmalihx.top 2->30 32 www.urbanopportunities.com 2->32 34 9 other IPs or domains 2->34 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 8 other signatures 2->48 9 Inquiry Order 26-09-2021.exe 3 2->9         started        signatures3 process4 file5 28 C:\Users\...\Inquiry Order 26-09-2021.exe.log, ASCII 9->28 dropped 60 Injects a PE file into a foreign processes 9->60 13 Inquiry Order 26-09-2021.exe 9->13         started        16 Inquiry Order 26-09-2021.exe 9->16         started        18 Inquiry Order 26-09-2021.exe 9->18         started        signatures6 process7 signatures8 62 Modifies the context of a thread in another process (thread injection) 13->62 64 Maps a DLL or memory area into another process 13->64 66 Sample uses process hollowing technique 13->66 68 Queues an APC in another process (thread injection) 13->68 20 cmd.exe 13->20         started        23 explorer.exe 13->23 injected process9 dnsIp10 50 Self deletion via cmd delete 20->50 52 Modifies the context of a thread in another process (thread injection) 20->52 54 Maps a DLL or memory area into another process 20->54 56 Tries to detect virtualization through RDTSC time measurements 20->56 36 www.atmospheraglobal.com 75.2.115.196, 49764, 80 AMAZON-02US United States 23->36 38 www.yshowmedia.com 23->38 40 2 other IPs or domains 23->40 58 System process connects to network (likely due to code injection or exploit) 23->58 26 autofmt.exe 23->26         started        signatures11 process12
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2021-09-27 03:42:57 UTC
AV detection:
5 of 45 (11.11%)
Threat level:
  2/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:b5ce loader rat
Behaviour
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
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.rheilea.com/b5ce/
Unpacked files
SH256 hash:
240319f66c17f913c162665d8623cab750371b8824be63f8eae00726ad73627b
MD5 hash:
0783fe39d59fb816f725ee80973407eb
SHA1 hash:
6db59e54b65c5ce9175f62fdb781c80be785fa8d
SH256 hash:
efd2f7657839b252c2fb8489c1ccf610b8e57b471efe049de86a74bc1506775d
MD5 hash:
c3f3e4a9e9ab54bf847a9fc02e7a2160
SHA1 hash:
0853bec33e36ede763927cda0f03129ca763bc07
SH256 hash:
4bca6ddfe57321dcfff1313c9ee397c526b98876b5e835d40425c871e9e9d58b
MD5 hash:
162d45aba74980734df5e72b4646f6a2
SHA1 hash:
07748e5283634a876f68d7aa5e814220a8e79f0e
SH256 hash:
c4c9d27ea805c32e7f0e66dc0d9534d8fbd87f4c1327727b2e1e9ae937f02c45
MD5 hash:
0bbbecc3323e753a087a19b3cc4edabd
SHA1 hash:
b96d8e6c3278698624e228f09de44815b1d90905
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: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 c4c9d27ea805c32e7f0e66dc0d9534d8fbd87f4c1327727b2e1e9ae937f02c45

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

Comments