MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 c8827b3385b4cfc8e31913a78e7e108ffeaa2cad099ccc49d4cb2c26edc5a910. 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: 9
| SHA256 hash: | c8827b3385b4cfc8e31913a78e7e108ffeaa2cad099ccc49d4cb2c26edc5a910 |
|---|---|
| SHA3-384 hash: | f5a8494a8125f05b227a7d07bb914c83846f52d90217f9f6621e308076a3e897d49dc3cef1dab1c917565f17296558bc |
| SHA1 hash: | 499f19e81568b3a9ad11a69b1506cadefd06d9c0 |
| MD5 hash: | 723e0598f2c1517b13506ea1521471fc |
| humanhash: | don-carolina-sierra-mars |
| File name: | Indirect Standard PO_6400456813.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 673'792 bytes |
| First seen: | 2023-10-05 12:01:20 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger) |
| ssdeep | 12288:4iMy/jZjSu/bAsWMEaH91sw4OHcfIhwEvoag4QbWS018uxmV/5aLEw:xLZjRDiRAYw4pAhwEvoxTRtQLE |
| Threatray | 27 similar samples on MalwareBazaar |
| TLSH | T198E4022077EA5F36D87A43FA0130450017B67DAF6578EA4C1DC670CF0A66F825AA1FA7 |
| TrID | 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 11.2% (.SCR) Windows screen saver (13097/50/3) 9.0% (.EXE) Win64 Executable (generic) (10523/12/4) 5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.8% (.EXE) Win32 Executable (generic) (4505/5/1) |
| Reporter |  TeamDreier |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
295
Origin country :
DKVendor Threat Intelligence
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Unknown
Threat level:
0/10
Confidence:
100%
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
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.
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-10-05 08:15:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
17 of 23 (73.91%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
agenttesla
Similar samples:
+ 17 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
n/a
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Blocklisted process makes network request
Checks computer location settings
Loads dropped DLL
Unpacked files
SH256 hash:
44ea892d3a7842f35321e9c5c3adfa7bddb7b6751d45125ab87896672e132fd6
MD5 hash:
0edb95ff1dffb486dfcc9769da542a2d
SHA1 hash:
9152f9d136c8cd5bba085d73de7f57f7d67811a6
SH256 hash:
cde067e2808194ba66e53839a3199f5cde30efbea01c317cdbf5e1311c5c80ad
MD5 hash:
d621db156a21ed9f984d71668f4f7c08
SHA1 hash:
afeb86a9825821a589c1417c6e5995a336dd1996
SH256 hash:
b1270dc9ec3f22c6fd2296239426ac7c48589589580d4a1b3da8188920b22a63
MD5 hash:
5c904da8528cfb1b87b15a6aa7c059cd
SHA1 hash:
f0a192969485d1bc34bf52adf37d9c20176d6b85
SH256 hash:
af10a81d30ea6c14a0857caa64697f78672a941419d679b34eedb82e080ad46b
MD5 hash:
ec0b80883f0b18fb75a48dd18795f514
SHA1 hash:
afe9537c27362b6769a1df0ad414b8e58d34ea40
SH256 hash:
221f7df01c882ecdc9bd81f76ec934603c778691d64f95552e62709a2fb81a98
MD5 hash:
fdd8ed8c5342f3df04efdaf4071b3320
SHA1 hash:
6f1c5e64f9d67a95768ab6ee4155d91c013920ab
SH256 hash:
c8827b3385b4cfc8e31913a78e7e108ffeaa2cad099ccc49d4cb2c26edc5a910
MD5 hash:
723e0598f2c1517b13506ea1521471fc
SHA1 hash:
499f19e81568b3a9ad11a69b1506cadefd06d9c0
Verdict:
Malicious
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: | maldoc_getEIP_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | meth_get_eip |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| 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.
Malspam
Delivery method
Distributed via e-mail attachment
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