MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 87935ff36515ecb6a4177c25ad1d11e8d2882aa1c3f369e719406f063a062517. 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: 11
| SHA256 hash: | 87935ff36515ecb6a4177c25ad1d11e8d2882aa1c3f369e719406f063a062517 |
|---|---|
| SHA3-384 hash: | 5ab81ebf0ca1b0726b0f164651125b9eb9c80f1826952bdd3e03c0d25b2118802d7ef96568f821d91d0c4263425b25b5 |
| SHA1 hash: | dd6b5263da3b4f1a42e89c2c1ade852098561c5d |
| MD5 hash: | 877bb5661fe79bb7f48cfb3ea54537a0 |
| humanhash: | montana-oklahoma-kansas-emma |
| File name: | INV74321.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 579'490 bytes |
| First seen: | 2021-05-10 07:14:53 UTC |
| Last seen: | 2021-05-10 08:06:30 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | ced282d9b261d1462772017fe2f6972b (127 x Formbook, 113 x GuLoader, 70 x RemcosRAT) |
| ssdeep | 6144:q9X0G6+bQSvddNYJ+WxzNvDozGbRE1RbQnBYYwKc7:c0f+bQWdNYZZDoGbREfbsuXKa |
| Threatray | 5'082 similar samples on MalwareBazaar |
| TLSH | CCC4166022A086E5D0C304710B94A526C597ACFFA9703552A3E2F636CDB958FE3F7DD2 |
| Reporter |  abuse_ch |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
139
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Sending a UDP request
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
xloader
Threat name:
Win32.Trojan.SpyNoon
Status:
Malicious
First seen:
2021-05-10 01:49:13 UTC
AV detection:
13 of 46 (28.26%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 5'072 additional samples on MalwareBazaar
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.nobleandmarble.com/or4i/
Unpacked files
SH256 hash:
575c27017b612c76736d0b43645a8c942477b37bfd5ca34d6d82c004885283c4
MD5 hash:
792ab8bc6ed1c1b28d996ebdc1873e8c
SHA1 hash:
46d80f21eba3150d206d9bdef98facd4867147ac
SH256 hash:
87935ff36515ecb6a4177c25ad1d11e8d2882aa1c3f369e719406f063a062517
MD5 hash:
877bb5661fe79bb7f48cfb3ea54537a0
SHA1 hash:
dd6b5263da3b4f1a42e89c2c1ade852098561c5d
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Gamarue
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: | Formbook |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Formbook in memory |
| Reference: | internal research |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | win_formbook_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
| Rule name: | win_formbook_g0 |
|---|---|
| Author: | Slavo Greminger, SWITCH-CERT |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Comments
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MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0001.032] Anti-Behavioral Analysis::Timing/Delay Check GetTickCount
1) [C0032.001] Data Micro-objective::CRC32::Checksum
2) [C0026.002] Data Micro-objective::XOR::Encode Data
5) [C0045] File System Micro-objective::Copy File
6) [C0046] File System Micro-objective::Create Directory
7) [C0048] File System Micro-objective::Delete Directory
8) [C0047] File System Micro-objective::Delete File
9) [C0049] File System Micro-objective::Get File Attributes
10) [C0051] File System Micro-objective::Read File
11) [C0050] File System Micro-objective::Set File Attributes
12) [C0052] File System Micro-objective::Writes File
13) [E1510] Impact::Clipboard Modification
14) [C0034.001] Operating System Micro-objective::Set Variable::Environment Variable
15) [C0036.004] Operating System Micro-objective::Create Registry Key::Registry
16) [C0036.002] Operating System Micro-objective::Delete Registry Key::Registry
17) [C0036.007] Operating System Micro-objective::Delete Registry Value::Registry
18) [C0036.003] Operating System Micro-objective::Open Registry Key::Registry
19) [C0036.005] Operating System Micro-objective::Query Registry Key::Registry
20) [C0036.006] Operating System Micro-objective::Query Registry Value::Registry
21) [C0036.001] Operating System Micro-objective::Set Registry Key::Registry
22) [C0017] Process Micro-objective::Create Process
23) [C0038] Process Micro-objective::Create Thread
24) [C0018] Process Micro-objective::Terminate Process