MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c15b6c5b17eaedb2a9bfec349a7c7a394a3ff40440728a4fe52109530f6e89ce. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments 1

SHA256 hash: c15b6c5b17eaedb2a9bfec349a7c7a394a3ff40440728a4fe52109530f6e89ce
SHA3-384 hash: 8185631383fdbb3d56b0489c405af9015934cb9dd7379921c17d6a3c1d21be66a30591a1b18b7be18eb7169e65ddb844
SHA1 hash: c6d00c29f3797a7835ccb178a02d691d515c2b08
MD5 hash: d3d5c533407fa52d0a2ab0e74c844df4
humanhash: avocado-johnny-king-red
File name:d3d5c533407fa52d0a2ab0e74c844df4
Download: download sample
Signature Formbook
File size:657'920 bytes
First seen:2022-07-04 18:37:29 UTC
Last seen:2022-07-15 04:04:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:kbJJ+cOnrg4IzKF9fi0UwYcsPMLoVhRCIsDPwePufNeM:kbJJ+KNuZsPMLoV4cePuFeM
TLSH T121E4F21AFAA5CD12C7991673C4D2D52843B1FC83F233D76B358A2269AD033B7D846786
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
4
# of downloads :
257
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
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
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Spyware.SnakeLogger
Status:
Malicious
First seen:
2022-07-04 17:03:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 26 (73.08%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:sd28 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Unpacked files
SH256 hash:
3612648d359926e1b1cd84e2202b671b5dada668926bf3ebf65ea4d140fde02a
MD5 hash:
f225c9e2d469578a1fc1758db5d57024
SHA1 hash:
86dfaa0a1cdf2ef14beb5723067a8399cab779b3
Detections:
win_formbook_g0 win_formbook_auto FormBook
SH256 hash:
70bb4f8aa7d0a33f8206f78c845fa2bd686c2a0f2b3bd50cd0b6b887a45398ca
MD5 hash:
30d61a3a3e26c2bca2eb766990132d7c
SHA1 hash:
94f9742d5f21b13f7d8d194fe938193cbb6a0d4d
SH256 hash:
3b59fe180dd50e3f3d4fdcbdd4e7a2d4e3e1c85ae43cb4f3716c4be41e9ec2ae
MD5 hash:
9ea556e333e216a65aa09c102f36004f
SHA1 hash:
814c07f1dc68bd61840384aac3aa8346d9f8148f
SH256 hash:
e7a4587aee2245791da8e89827e203fe4f7f1da4eb496b06be86116e15772fc5
MD5 hash:
f4407d2fa81e47254e2b0b3765fb8434
SHA1 hash:
71d92f33dabddf66fec25b4691a574459df72237
SH256 hash:
ee7b7e8e06cf0288ac34700362f043016a71af010239c89586b1e49cee3a59ef
MD5 hash:
ccbef0d4341ff126e3264c3db9a8620e
SHA1 hash:
4e1c46589ec83d85ae99d2e2f6a6d1aa6fb7464c
SH256 hash:
5d60456d91e277fef76d1f234009d3f803150010872e5b4dc19b338b0f64f988
MD5 hash:
9df3193668c6f0ba2853dea7a5894af6
SHA1 hash:
07269ebfcb58189a2d21cc156ad7d7b5f5dfd979
SH256 hash:
c15b6c5b17eaedb2a9bfec349a7c7a394a3ff40440728a4fe52109530f6e89ce
MD5 hash:
d3d5c533407fa52d0a2ab0e74c844df4
SHA1 hash:
c6d00c29f3797a7835ccb178a02d691d515c2b08
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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe c15b6c5b17eaedb2a9bfec349a7c7a394a3ff40440728a4fe52109530f6e89ce

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-07-04 18:37:34 UTC

url : hxxp://192.210.240.12/100/fmc.exe