MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b1fa69e98d91d174851b755a68c214073833e5ac20fdd64f45a61ff0c4a47ad8. 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
| SHA256 hash: | b1fa69e98d91d174851b755a68c214073833e5ac20fdd64f45a61ff0c4a47ad8 |
|---|---|
| SHA3-384 hash: | 6bd59fd29adcb27c852e99dc53694ab7c72c624163787e29a064bea3dfc1a33d2aaa57e0afc5f2217b3b9bbee55784bf |
| SHA1 hash: | 2ad7c207d7391d8dd1947693a30e1fe1569c99c4 |
| MD5 hash: | b36ecf6ccbd437fe1a8844f2c278dd88 |
| humanhash: | king-arizona-apart-solar |
| File name: | Teklif 0718.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 370'688 bytes |
| First seen: | 2022-07-18 09:57:12 UTC |
| Last seen: | 2022-07-18 10:49:23 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 6144:qGFrhiAcqofsFX9grhLyMP5GOwabIBRV82jb95WFf24Mi6Dblg1DxN:qGF4RPwgrhLyMPNb8PVBbyh24MnDbun |
| TLSH | T18F74235FCF9589A2C43A403B6C38D0A7A8B2FD303916D9BE5FD9E20E21031476B67675 |
| 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) |
| File icon (PE): |  |
| dhash icon | b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla) |
| Reporter |  lowmal3 |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
340
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Detection(s):
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
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
10/10
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.
Malware family:
Formbook
Verdict:
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 array initializations
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
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 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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2022-07-18 09:58:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
24 of 26 (92.31%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:kn30 rat spyware stealer suricata trojan
Behaviour
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
Formbook payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
b0088bc954a8c5f43d4c2513c483f98dead55526d507163331c0431a69a30d17
MD5 hash:
0244995820c031791bb57b373e8406fa
SHA1 hash:
ad0ba25e5e356f6bcc7b40c6af74d27934943baa
Detections:
win_formbook_g0
SH256 hash:
004a06f9193d0015dad8707e4039449cb7a1f4655a90a3be80a10b91c9630464
MD5 hash:
32966877e41b3009f89e5975a62f59ac
SHA1 hash:
52aa86d929b89f8d4e8dfe4580b4cedc2939db77
Detections:
win_formbook_g0
win_formbook_auto
FormBook
SH256 hash:
6117e5c598eeeaff17f3ded934889e25499de28d10d8d4a998e7fe07cc6a60b5
MD5 hash:
4434ab28d852871b25ebc3bf5ed47e07
SHA1 hash:
f58c728e3a7d9714a47dca02b80b167c0696d3f4
SH256 hash:
9f01d9f2ed07e630ec078efa5d760762c3c8ad3b06e9e8a9062a37d63d57b026
MD5 hash:
9fbb8cec55b2115c00c0ba386c37ce62
SHA1 hash:
e2378a1c22c35e40fd1c3e19066de4e33b50f24a
SH256 hash:
260a710670781a795592d05c92f831a5c071590658e1f3352c3713805c512f79
MD5 hash:
4d9fa00db559ad7a2d433cf5d17e534a
SHA1 hash:
50816831850bdfa566ecc0c777ca7fd689e1cd54
SH256 hash:
b1fa69e98d91d174851b755a68c214073833e5ac20fdd64f45a61ff0c4a47ad8
MD5 hash:
b36ecf6ccbd437fe1a8844f2c278dd88
SHA1 hash:
2ad7c207d7391d8dd1947693a30e1fe1569c99c4
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
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: | malware_Formbook_strings |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Formbook in memory |
| Reference: | internal research |
| Rule name: | meth_get_eip |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | win_formbook_auto |
|---|---|
| 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.
Malspam
Delivery method
Distributed via e-mail attachment
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.