MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ac5b343e2bf9cedf7b2f4a56bfa4f11ae5696cf6ad8a5bac2830b466f1d157f8. 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: 14
| SHA256 hash: | ac5b343e2bf9cedf7b2f4a56bfa4f11ae5696cf6ad8a5bac2830b466f1d157f8 |
|---|---|
| SHA3-384 hash: | 266d0dc2dd7f2f860898f77b42f36e42ec1544ec2b8ff281bcb87ee4b2a1c647327418e20d9f5c372072def80fd8dc38 |
| SHA1 hash: | c75d8933032ae525c2d6bf3fa12b702604247f40 |
| MD5 hash: | c0a476bd72705bb58c77ada2fde6108b |
| humanhash: | emma-red-single-finch |
| File name: | ac5b343e2bf9cedf7b2f4a56bfa4f11ae5696cf6ad8a5bac2830b466f1d157f8 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'203'200 bytes |
| First seen: | 2025-08-12 14:42:43 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger) |
| ssdeep | 24576:Ktb20pkaCqT5TBWgNQ7aJsI8YKRpxnb5KkSYPP0M26A:3Vg5tQ7aJsI8tVtVvX0j5 |
| Threatray | 2'726 similar samples on MalwareBazaar |
| TLSH | T13145CF1363DE8361C7B25273BA25B741BE7F782506A1F56B2FD8093DE820122525EB73 |
| 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 |  adrian__luca |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
30
Origin country :
HUVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ac5b343e2bf9cedf7b2f4a56bfa4f11ae5696cf6ad8a5bac2830b466f1d157f8
Verdict:
No threats detected
Analysis date:
2025-08-12 21:41:26 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Detection(s):
Verdict:
Malicious
Score:
99.1%
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Sending a custom TCP request
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
adaptive-context autoit compiled-script evasive fingerprint fingerprint keylogger lolbin microsoft_visual_cc obfuscated packed packed packer_detected threat wuauclt
Verdict:
Malicious
Labled as:
Trojan.Generic
Malware family:
Formbook
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Gathering data
Threat name:
Win32.Trojan.AutoitInject
Status:
Malicious
First seen:
2025-07-30 02:54:39 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
30 of 38 (78.95%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
autoit
unc_loader_036
formbook
Similar samples:
+ 2'716 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
ac5b343e2bf9cedf7b2f4a56bfa4f11ae5696cf6ad8a5bac2830b466f1d157f8
MD5 hash:
c0a476bd72705bb58c77ada2fde6108b
SHA1 hash:
c75d8933032ae525c2d6bf3fa12b702604247f40
SH256 hash:
fc4b67409ffa1051ecb459d32e0bfdbcaf7c62e498430d0d56c23a3e3c27bff0
MD5 hash:
7211f34e2a294d0171119f9787ca7d18
SHA1 hash:
90f402d0b28a6a218ae75f262bca85ccec6bc400
SH256 hash:
5bf537de05ab7ea08a2acbcf46adc1e9c97092b87f9e3d6c1d25e11f3363ec83
MD5 hash:
b77dec7f1a153e3d2388cb37f7994af7
SHA1 hash:
f05fc4885b3e1f594d58f4d058f40ed5f3059abe
Detections:
win_formbook_g0
Parent samples :
31b54ca638d0cfe3c3abf12ca1e32d09f559c64774a05543175a423e54247ec7
ac5b343e2bf9cedf7b2f4a56bfa4f11ae5696cf6ad8a5bac2830b466f1d157f8
675456ff0fc4d1f3c27d1f0493a8f99a46397d63d49fb225e51975a288630f1a
f32f644b5f7e9ff761b5331f017f88da12bc7139e5d326af0a91372924ed567c
3d4158e128793cf5c9950bd9fbfbee029448aeca7df8e59325e19346021657cc
ac5b343e2bf9cedf7b2f4a56bfa4f11ae5696cf6ad8a5bac2830b466f1d157f8
675456ff0fc4d1f3c27d1f0493a8f99a46397d63d49fb225e51975a288630f1a
f32f644b5f7e9ff761b5331f017f88da12bc7139e5d326af0a91372924ed567c
3d4158e128793cf5c9950bd9fbfbee029448aeca7df8e59325e19346021657cc
Please note that we are no longer able to provide a coverage score for Virus Total.
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_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) |
| Rule name: | YahLover |
|---|---|
| Author: | Kevin Falcoz |
| Description: | YahLover |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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