MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 411e56b415d4c23a741958c3f1ada72b3e958c078d27c339678bb690b7a895c3. 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: 8


Intelligence 8 IOCs YARA 1 File information Comments

SHA256 hash: 411e56b415d4c23a741958c3f1ada72b3e958c078d27c339678bb690b7a895c3
SHA3-384 hash: 540d7ae2be2ba7d0d046a19fc852af9e3d73a120ab144b15e2539f135de39058f31fd0416ae219d8c3ea55e1d611c51a
SHA1 hash: 3fe377522ab066ac51b0c6a03941b0f7d37d4064
MD5 hash: fda3b0568177b2609ae1eef3d391dc47
humanhash: mars-chicken-kentucky-march
File name:5CLX0aUFemBe4lP.exe
Download: download sample
Signature Formbook
File size:1'063'424 bytes
First seen:2021-03-03 04:22:40 UTC
Last seen:2021-03-03 05:36:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'596 x Formbook, 12'240 x SnakeKeylogger)
ssdeep 24576:YHED1mB+0duCtYWgL+uDzN4ffOZYzEWLnKRWu3/by:Yvu16u4fm6FLKRte
TLSH 8935ACD816A93CD4F1B5DF7069F82592E2FAB573D60DE84D346692FA701A890CB70338
Reporter Anonymous
Tags:FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
169
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5CLX0aUFemBe4lP.exe
Verdict:
Malicious activity
Analysis date:
2021-03-03 04:18:10 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
UNKNOWN
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 very large strings
Binary contains a suspicious time stamp
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 361709 Sample: 5CLX0aUFemBe4lP.exe Startdate: 03/03/2021 Architecture: WINDOWS Score: 100 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for dropped file 2->50 52 11 other signatures 2->52 10 5CLX0aUFemBe4lP.exe 7 2->10         started        process3 file4 32 C:\Users\user\AppData\Roaming\BDAWzL.exe, PE32 10->32 dropped 34 C:\Users\user\...\BDAWzL.exe:Zone.Identifier, ASCII 10->34 dropped 36 C:\Users\user\AppData\Local\...\tmp2558.tmp, XML 10->36 dropped 38 C:\Users\user\...\5CLX0aUFemBe4lP.exe.log, ASCII 10->38 dropped 62 Tries to detect virtualization through RDTSC time measurements 10->62 64 Injects a PE file into a foreign processes 10->64 14 5CLX0aUFemBe4lP.exe 10->14         started        17 schtasks.exe 1 10->17         started        signatures5 process6 signatures7 66 Modifies the context of a thread in another process (thread injection) 14->66 68 Maps a DLL or memory area into another process 14->68 70 Sample uses process hollowing technique 14->70 72 Queues an APC in another process (thread injection) 14->72 19 explorer.exe 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 40 credit-recovery.legal 95.216.64.226, 49726, 80 HETZNER-ASDE Germany 19->40 42 southwesterboats.com 34.102.136.180, 49743, 80 GOOGLEUS United States 19->42 44 4 other IPs or domains 19->44 54 System process connects to network (likely due to code injection or exploit) 19->54 25 WWAHost.exe 19->25         started        signatures10 process11 signatures12 56 Modifies the context of a thread in another process (thread injection) 25->56 58 Maps a DLL or memory area into another process 25->58 60 Tries to detect virtualization through RDTSC time measurements 25->60 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-03-03 04:17:07 UTC
AV detection:
7 of 46 (15.22%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.ojaveda.com/ame8/
Unpacked files
SH256 hash:
f9d949d2f56c449c5d346bb93ed04d38426f563b022dd179ae330dab46682c3b
MD5 hash:
871e23d748ba756eaab5777708f250f8
SHA1 hash:
c9816d4ab38541aaab9aa3eab7cb4898d0b72e4a
SH256 hash:
411e56b415d4c23a741958c3f1ada72b3e958c078d27c339678bb690b7a895c3
MD5 hash:
fda3b0568177b2609ae1eef3d391dc47
SHA1 hash:
3fe377522ab066ac51b0c6a03941b0f7d37d4064
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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information


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

Comments