MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ef87ae80d553c2c3376c800f42a76a25807bfaebce0328df6009ff76b015f5ac. 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: 16
| SHA256 hash: | ef87ae80d553c2c3376c800f42a76a25807bfaebce0328df6009ff76b015f5ac |
|---|---|
| SHA3-384 hash: | 3dd5ca2fbd62aaac0841a7e9cc2bf3d1f4985d14387c975ec29f14edc324bb2f2d5643423b2daca045a0409fbb4bdad6 |
| SHA1 hash: | 42129d58a5a835627a2395ff816889203c128981 |
| MD5 hash: | 85485ea412162921d9c3128673b318e9 |
| humanhash: | september-low-spaghetti-burger |
| File name: | P-INVOICE.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'309'184 bytes |
| First seen: | 2025-07-01 02:19:29 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 0b768923437678ce375719e30b21693e (143 x Formbook, 25 x MassLogger, 22 x SnakeKeylogger) |
| ssdeep | 24576:w5EmXFtKaL4/oFe5T9yyXYfP1ijXdaI4ZIOzPQ6/itaODwqKp5:wPVt/LZeJbInQRaIoHQ1taODwq |
| Threatray | 1'250 similar samples on MalwareBazaar |
| TLSH | T1CE55CF027381C062FFAB92334F5AF6115BBD79260123AA1F13981DB9BD701B1563E7A3 |
| TrID | 40.3% (.EXE) Win64 Executable (generic) (10522/11/4) 19.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 17.2% (.EXE) Win32 Executable (generic) (4504/4/1) 7.7% (.EXE) OS/2 Executable (generic) (2029/13) 7.6% (.EXE) Generic Win/DOS Executable (2002/3) |
| Magika | pebin |
| dhash icon | aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla) |
| Reporter |  threatcat_ch |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
555
Origin country :
CHVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
rl_ef87ae80d553c2c3376c800f42a76a25807bfaebce0328df6009ff76b015f5ac
Verdict:
Malicious activity
Analysis date:
2025-07-01 02:21:48 UTC
Tags:
auto-startup
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Verdict:
Malicious
Score:
94.9%
Tags:
autorun autoit emotet
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit compiled-script entropy fingerprint keylogger masquerade microsoft_visual_cc obfuscated packed packed
Verdict:
Malicious
Labled as:
Trojan.BAT.Agent.gen
Malware family:
Formbook
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
Malware
YARA:
7 match(es)
Tags:
AutoIt Decompiled Executable PE (Portable Executable) Suspect Win 32 Exe x86
Verdict:
Malicious
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
unc_loader_036
Similar samples:
+ 1'240 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
discovery
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
Drops startup file
Executes dropped EXE
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
ef87ae80d553c2c3376c800f42a76a25807bfaebce0328df6009ff76b015f5ac
MD5 hash:
85485ea412162921d9c3128673b318e9
SHA1 hash:
42129d58a5a835627a2395ff816889203c128981
SH256 hash:
bd18b5a5221c8644dc5481c28b21ea6869fb9bce7ce79f263e1cc0d0115b4509
MD5 hash:
a6e04e03754c6cb521a8906ce28a81f1
SHA1 hash:
ebf4f8282a3284df74c3920466dc7d8d9038656b
Detections:
win_formbook_g0
Parent samples :
0b2ca920772b398aa426cc110e3c15ba84fc1e3dce552fdc27942f8f6c3ef2df
2740e9c875b6d70c61a6bbe6793d5820ca89ed0a479ff85c68dcbed917545d8e
ef87ae80d553c2c3376c800f42a76a25807bfaebce0328df6009ff76b015f5ac
12043fdb7c44d95d30ab4ffcc73f1521e44698aaa2c09bd888b60417d8d0dd84
017a290db79efceb14ac349be606392dfbe12b86cc856d115b6c89af7c085c1e
62ebdb98013112ee7d785d744e42ad51fd685a13191ebb22c72f3be33b5bf1a6
2740e9c875b6d70c61a6bbe6793d5820ca89ed0a479ff85c68dcbed917545d8e
ef87ae80d553c2c3376c800f42a76a25807bfaebce0328df6009ff76b015f5ac
12043fdb7c44d95d30ab4ffcc73f1521e44698aaa2c09bd888b60417d8d0dd84
017a290db79efceb14ac349be606392dfbe12b86cc856d115b6c89af7c085c1e
62ebdb98013112ee7d785d744e42ad51fd685a13191ebb22c72f3be33b5bf1a6
SH256 hash:
033f23ef6ba85a52ab5f8952e78dbe7af9b08111bbfc32625573f605a3762a15
MD5 hash:
6c4f85e3a7cc0a9858fa07ee28326a74
SHA1 hash:
20db3d31164504a9a246b598f93e9e3ab5e69770
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
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: | AutoIT_Compiled |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious. |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| 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: | DetectEncryptedVariants |
|---|---|
| Author: | Zinyth |
| Description: | Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded |
| Rule name: | dgaagas |
|---|---|
| Author: | Harshit |
| Description: | Uses certutil.exe to download a file named test.txt |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | MD5_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for MD5 constants |
| Rule name: | pe_detect_tls_callbacks |
|---|
| 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: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP) |
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
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