MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 1ab3c31624f7aed4e2ec9feecee3cff24e8904709800508e13b6526369e02236. 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: 10
| SHA256 hash: | 1ab3c31624f7aed4e2ec9feecee3cff24e8904709800508e13b6526369e02236 |
|---|---|
| SHA3-384 hash: | b65b5e3a91ae5d4029e35d9ad5bef4a96e0500cc7bc72af9d3111107ce2c30e85b39a6fcf7602523da00b0b687c3c6eb |
| SHA1 hash: | b4fb3b31f69fc5b048eeb43ea6f8fd97f1fb8f7a |
| MD5 hash: | 7c1896eeb884021f4d74144ec78be2e8 |
| humanhash: | stream-kansas-william-arkansas |
| File name: | 7c1896ee_by_Libranalysis |
| Download: | download sample |
| Signature | Formbook |
| File size: | 759'808 bytes |
| First seen: | 2021-05-06 13:01:24 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 6b1c05b0b684805cab835263a8e57edd (2 x Formbook, 1 x RemcosRAT) |
| ssdeep | 12288:fo5FgaAY6Lwp/38cRQAr/sCu76nHqRAHqb2wrLSU/Oy/k:fv5rwp/Mc+AoCW2quKNeUD/ |
| Threatray | 5'087 similar samples on MalwareBazaar |
| TLSH | 1DF4AE25E3D08433D5AF1A344C5BB6B55C26FF002EE5B8896BF82D499F396817C282D7 |
| Reporter |  Libranalysis |
| Tags: | FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
108
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
DNS request
Sending a custom TCP request
Creating a file
Launching a process
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Launching cmd.exe command interpreter
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Creates a thread in another existing process (thread injection)
Creates an undocumented autostart registry key
Detected FormBook malware
Found malware configuration
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses ipconfig to lookup or modify the Windows network settings
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.NetWiredRc
Status:
Malicious
First seen:
2021-05-06 00:50:03 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 5'077 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook persistence rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
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
System policy modification
Drops file in Program Files directory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Adds policy Run key to start application
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.joomlas123.info/3nop/
Unpacked files
SH256 hash:
8f63001a412f92b1e28e17cf0ca84b5d4fa126a661cdae11c5221b7344c26999
MD5 hash:
77fbc4c0b74cf1b87fa3804f3c4c0ff1
SHA1 hash:
721f7b2c9db79c8a34b8ad43f103b22df632d2dc
SH256 hash:
bda101249cba0d61a060b07035aa83373ccb421e7a2863d57e0d6464f28a9a07
MD5 hash:
27fa00f9944d493ef7a16d989555a88d
SHA1 hash:
2a0e4c64dc4c1e444a1ff5ae95af3821fcc1b727
SH256 hash:
1ab3c31624f7aed4e2ec9feecee3cff24e8904709800508e13b6526369e02236
MD5 hash:
7c1896eeb884021f4d74144ec78be2e8
SHA1 hash:
b4fb3b31f69fc5b048eeb43ea6f8fd97f1fb8f7a
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: | MALWARE_Win_DLAgent07 |
|---|---|
| Author: | ditekSHen |
| Description: | Detects delf downloader agent |
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) [B0001.025] Anti-Behavioral Analysis::Software Breakpoints
1) [B0001.032] Anti-Behavioral Analysis::Timing/Delay Check GetTickCount
2) [B0009.029] Anti-Behavioral Analysis::Instruction Testing
3) [F0002.002] Collection::Polling
5) [C0026.002] Data Micro-objective::XOR::Encode Data
7) [C0051] File System Micro-objective::Read File
8) [C0052] File System Micro-objective::Writes File
9) [C0007] Memory Micro-objective::Allocate Memory
10) [C0036.004] Operating System Micro-objective::Create Registry Key::Registry
11) [C0036.003] Operating System Micro-objective::Open Registry Key::Registry
12) [C0036.006] Operating System Micro-objective::Query Registry Value::Registry
13) [C0038] Process Micro-objective::Create Thread
14) [C0041] Process Micro-objective::Set Thread Local Storage Value
15) [C0018] Process Micro-objective::Terminate Process