MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cc39680d5e75432a7b9264cc91004f51d0a2ae76462be3633d6626cb1e71d902. 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: 12


Intelligence 12 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cc39680d5e75432a7b9264cc91004f51d0a2ae76462be3633d6626cb1e71d902
SHA3-384 hash: ac17ebc13b3213a3f87612def704e6128dcf0b7ae056f1fa71655acee58d23c79c9520b99259beade0199590ef48270e
SHA1 hash: bb01257132b547e6aa2177b4a94064f1dcd9b26e
MD5 hash: 9cf5b53959da2a3429bd149bf1d50137
humanhash: spring-solar-five-alanine
File name:9cf5b53959da2a3429bd149bf1d50137.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:675'888 bytes
First seen:2022-04-29 07:38:36 UTC
Last seen:2022-04-29 08:47:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:hqiRxnR449Jk8boeVVWKUBmcFrw7HfIwRN71jdmESajnWjsFCk2fvSP:JoOD51jnSiSfg
Threatray 15'317 similar samples on MalwareBazaar
TLSH T155E4992A38BA100DB272AD5C6BBCB175D15EF7F226361C7B0DF7060A11129F0DB9D626
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
250
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
9cf5b53959da2a3429bd149bf1d50137.exe
Verdict:
Malicious activity
Analysis date:
2022-04-29 08:03:28 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/b60ce130-bf12-4b07-9ca8-a2c874db3dd1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/267736/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1293.13944.26861.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
aspnet_compiler.exe control.exe obfuscated overlay packed packed replace.exe
Link:
https://www.filescan.io/uploads/626b961fbc7a5945266ff314/reports/2479780e-f5bc-4731-b0f0-d542a1aa3beb/overview
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/6aa60735-fc38-45fd-8cbf-4183da7348e3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/985299
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cc39680d5e75432a7b9264cc91004f51d0a2ae76462be3633d6626cb1e71d902/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-04-28 14:38:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
03231087b8d197ac9adff7250c8ceb9c1e6d604c008e5622de78d7e1fcc78c1c
Formbook
45d9826dfa111b1780e3322915de84c8e4a6471ef51fd4819ce88b9bc6335019
Formbook
75966b70eb1553a97eca9ab884133daefbfb3c1d287905003f72158841c1d14d
Formbook
898b47cb2e4d16a7325de16aae14c3c66894467ece923e706c186ee9ab75799b
Formbook
a086b9d9deac0634ed22d5556aeb9616922d530ba2651c94bff0c87fbc0a47ef
Formbook
af985554eebc4990f77fc7c337d7af4367c2e28acbb41386669e5fa3bb55fbcd
Formbook
da988ba6c1b8b556831ea02129681d06cbf19c252bd744b83162cdb43343aceb
Formbook
+ 15'307 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ocgr loader rat suricata
Link:
https://tria.ge/reports/220429-jgyqwseacp/
Behaviour
Enumerates system info in registry
Modifies registry class
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
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
7d8cfd4eab4aa77fe66110e0832f4074973bd0145314cd89111d2d1bdd3688fc
MD5 hash:
2b79011633ef10f823aa3a3166eb0960
SHA1 hash:
a1e614ba1b7b8b5e04fcd5f0cb263105cb20a64e
Link:
https://www.unpac.me/results/d3f62de8-f8d5-4d23-8cc5-471b4ff2d9b0/
Parent samples :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 hash:
573099bcfab719e45d881768845a2d7311539fafd7f4246eb5063c676b84523a
MD5 hash:
9a1c5ff3b99b42917e403a8fb5327642
SHA1 hash:
7ea6fd1f8ef3e1cf52c2fc250ee74f1dc510039e
Link:
https://www.unpac.me/results/d3f62de8-f8d5-4d23-8cc5-471b4ff2d9b0/
SH256 hash:
3a949e150c8c16e47bc962d7df24946f0ca0f12b3b1c41d46ee32eed85856a7d
MD5 hash:
322c456efb7efc89c8f85acc1b0fe3d2
SHA1 hash:
40af4140d174cc4b088f6f03a30b7b4cf8021f67
Link:
https://www.unpac.me/results/d3f62de8-f8d5-4d23-8cc5-471b4ff2d9b0/
SH256 hash:
cc39680d5e75432a7b9264cc91004f51d0a2ae76462be3633d6626cb1e71d902
MD5 hash:
9cf5b53959da2a3429bd149bf1d50137
SHA1 hash:
bb01257132b547e6aa2177b4a94064f1dcd9b26e
Link:
https://www.unpac.me/results/d3f62de8-f8d5-4d23-8cc5-471b4ff2d9b0/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cc39680d5e75/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/cc39680d5e75432a7b9264cc91004f51d0a2ae76462be3633d6626cb1e71d902

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:INDICATOR_KB_CERT_65628c146ace93037fc58659f14bd35f
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Web download

Formbook

Executable exe cc39680d5e75432a7b9264cc91004f51d0a2ae76462be3633d6626cb1e71d902

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2169875/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/267736/

Comments