MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 1aace65d005ccd6fb6d04dc4ae6d59956f9457667e179316f6f580f24096d691. 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: | 1aace65d005ccd6fb6d04dc4ae6d59956f9457667e179316f6f580f24096d691 |
|---|---|
| SHA3-384 hash: | 1c99c11dfeccfdb8d62056d55fb3984c57eeadf5e75b29e36c7cce81e5d6fd3c55c2a023827ed27cfa1723c903964797 |
| SHA1 hash: | 0096fe124a712dfb9f34306fec8bafb9fb9eda46 |
| MD5 hash: | 3434e481c5c7e26dd7485ab9482f9fa4 |
| humanhash: | whiskey-timing-chicken-timing |
| File name: | HRM_LETTER_pdf.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 794'112 bytes |
| First seen: | 2025-06-26 12:29:32 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 12288:Ggr/Qnbx3Gomp3ux6JomvfYFREhQEBW0WzCNVUvbwFZIrsO9n:vQnbx3Gz3Seoos6Q3WNmbwF0sO9n |
| Threatray | 4'001 similar samples on MalwareBazaar |
| TLSH | T119F40168229A9F03C0BF07FA1512D0F4537ABECEA151E3198FC22CEB7D657960506B5B |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10522/11/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Magika | pebin |
| Reporter |  threatcat_ch |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
477
Origin country :
CHVendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
HRM_LETTER_pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-06-26 12:32:37 UTC
Tags:
netreactor formbook xloader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Verdict:
Malicious
Score:
92.5%
Tags:
underscore micro spawn shell
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
entropy masquerade obfuscated packed packed packer_detected vbnet
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable PE (Portable Executable) Win 32 Exe x86
Threat name:
ByteCode-MSIL.Trojan.Zilla
Status:
Malicious
First seen:
2025-06-26 11:57:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
20 of 24 (83.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
unc_loader_037
formbook
Similar samples:
+ 3'991 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
8/10
Tags:
discovery execution
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
1aace65d005ccd6fb6d04dc4ae6d59956f9457667e179316f6f580f24096d691
MD5 hash:
3434e481c5c7e26dd7485ab9482f9fa4
SHA1 hash:
0096fe124a712dfb9f34306fec8bafb9fb9eda46
SH256 hash:
50a4424afcfd9145fbcb49be85fb050d30d299be617dea659e6f4a2f846aec75
MD5 hash:
87746f0c6fbab87f7706492ea27cc98d
SHA1 hash:
29d81b7bd5aefaef930f48ef3e58a0f7b3e70414
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
INDICATOR_EXE_Packed_SmartAssembly
SH256 hash:
e60f9316d57d29f10fd160059e3fcc35a66249576aaf2e7e97c726f3a920bfe7
MD5 hash:
dba8246cf2fee2d927c4b5564badd788
SHA1 hash:
d3ddeafc8a5d40f3974819a1cc65a67d2dc4c45c
SH256 hash:
5516e17e2cff341294107a1ac6e6a8667068a1946fcb8e1cd232a1b2f2c47421
MD5 hash:
a2cea263c22c41d89b90d033715a1d23
SHA1 hash:
f85a331fcce18d7dab2083efecfe631fdb911e30
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
b089d63574927e20a3e6d5983cb3a902620733e4d03c2bc3beebcceb42bc7970
MD5 hash:
0519493ccb52ef986bf7bc399325d04f
SHA1 hash:
a1e0ec05f79d7e30be35e98dc95b03c66c4c8349
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: | 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: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| 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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