MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 af577fba54197b9d6d539da592156b01e7ceafccf01e515c1255f9896cadbfd5. 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: | af577fba54197b9d6d539da592156b01e7ceafccf01e515c1255f9896cadbfd5 |
|---|---|
| SHA3-384 hash: | a884799089408b4f922c0f2da67d46f29b42cacf58469369dcaa945e4c977df7e1ba4bcce6907630726ef160d7f43ebc |
| SHA1 hash: | 5776d749832d57dd3e5f2eb3ce00474338b2ce77 |
| MD5 hash: | e54dee8ea8d2cf76f6266ed7a17d4836 |
| humanhash: | music-venus-oven-nineteen |
| File name: | SecuriteInfo.com.Win32.PWSX-gen.12741.21914 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 700'416 bytes |
| First seen: | 2023-12-06 22:16:24 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger) |
| ssdeep | 12288:Rgq5DN43I38qYinf2bGAC2sIqk90DbxQZBVwXEVq/iw7cpToMFFjcueH5q:RTu3i8JiubGAGIf90nxQliEVqypEAsq |
| Threatray | 517 similar samples on MalwareBazaar |
| TLSH | T1DAE41206777D3B19DAAAA7F20200250043F9A96B3A62D30C5DDB21CF15B6F869F54F27 |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4505/5/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Reporter |  SecuriteInfoCom |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
323
Origin country :
FRVendor Threat Intelligence
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
packed
Verdict:
Malicious
Labled as:
Malware
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:
Malicious Packer
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-12-06 20:35:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
31
AV detection:
15 of 22 (68.18%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 507 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
96adebe2d3724b09c5f8d594729bbf9b084d9b6dff3398c5e1c7d79d0ca642e3
MD5 hash:
66177a12d0bc968626c1716133a08e46
SHA1 hash:
df395156d246854650801b46607b4a1b2ba47721
SH256 hash:
a0f01eaf0772e8a22deec7deaffe23c78790261a8e917005e7796e12f4b89b6d
MD5 hash:
2d194f56ed6fd1e15d977f873b63df83
SHA1 hash:
adf44b215e43477d8e70b942c528a83df3837c7b
SH256 hash:
797e57bd74a68f7b4808a213f5c319ee4f4b023bc73088175d4393dfee9fe329
MD5 hash:
3c927935fbd608e7628cc2c5ad7d52fd
SHA1 hash:
ee0c880c0614ac960fd641f7d479233584aed1d8
SH256 hash:
d849029dfade7de6070a02dfc0f2a68d33cc7bec01ee2f45ab3f47c3e3fb3fb2
MD5 hash:
09e6d058e9c3fe43e2d9165f4c6027c5
SHA1 hash:
994f31c672df0b9619cc13774885a1b85c276c6d
SH256 hash:
a13c8285a265bcc9312430b55a34a476ab300d5e75dcb7f12bf7302f09647b7c
MD5 hash:
4d476fd68ec8f6004934578bff05416d
SHA1 hash:
600a922cbb4ec189aef84a14bc1f0fd699f34204
SH256 hash:
af577fba54197b9d6d539da592156b01e7ceafccf01e515c1255f9896cadbfd5
MD5 hash:
e54dee8ea8d2cf76f6266ed7a17d4836
SHA1 hash:
5776d749832d57dd3e5f2eb3ce00474338b2ce77
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
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: | AgentTesla_DIFF_Common_Strings_01 |
|---|---|
| Author: | schmidtsz |
| Description: | Identify partial Agent Tesla strings |
| Rule name: | DebuggerCheck__GlobalFlags |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerCheck__QueryInfo |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerHiding__Active |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerHiding__Thread |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | Formbook |
|---|---|
| Author: | kevoreilly |
| Description: | Formbook Payload |
| Rule name: | maldoc_find_kernel32_base_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | maldoc_getEIP_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | MD5_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for MD5 constants |
| Rule name: | meth_get_eip |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SEH__vectored |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Windows_Trojan_Formbook |
|---|---|
| Author: | @malgamy12 |
| Rule name: | Windows_Trojan_Formbook_1112e116 |
|---|---|
| Author: | Elastic Security |
| Rule name: | win_formbook_w0 |
|---|---|
| Author: | @malgamy12 |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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