MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81794c637b54a673f7e5af3f1f0aeb3479e9279b6870c07caa0a380ea7ad1dce. 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


DarkTortilla


Vendor detections: 14


Intelligence 14 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81794c637b54a673f7e5af3f1f0aeb3479e9279b6870c07caa0a380ea7ad1dce
SHA3-384 hash: 512e4aba28d54fbdfef4735b239eb5035a84c8e893ac22f5d479c5df722de94b558d10205db2707a39f8eb70328bd9e6
SHA1 hash: 4e7d964212b15097bc867935dae6ab71b72ec6fc
MD5 hash: 292b38ef1365ee19ef46925535305891
humanhash: crazy-fix-mexico-freddie
File name:LisectAVT_2403002A_35.exe
Download: download sample
Signature DarkTortilla
Create hunting rule
File size:1'062'923 bytes
First seen:2024-07-25 00:23:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:Ac3bAWWghMMjiPPcgFXw4+sNS3RbtEgMfSNhjAyiXBo5JNHrU322WrM9uOAHnh42:I2ziPPcgFXRShqgFNhoRo4wA9gh4q
TLSH T1E935D05C6BF8E510F27E3B75A4B512204334F8DB9622D31E02E150E97BB27D28A51BE7
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) (4504/4/1)
Reporter Anonymous
Tags:DarkTortilla exe


Avatar
Anonymous
this malware sample is very nasty!

Intelligence

File Origin
# of uploads :
1
# of downloads :
89
Origin country :
CN CN
Vendor Threat Intelligence
Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66a19b33ae21d7902eaff8bd
Tags:
Encryption Network
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
lolbin overlay remote shell32 tracker vbnet
Link:
https://www.filescan.io/uploads/66a19b2b3ba51bb345a37026/reports/c1e43aca-9ca2-48d0-9677-be2818d5617c/overview
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
Link:
https://analyze.intezer.com/analyses/cca2709f-7914-4f7d-b63f-080e48d5a5ff
Result
Threat name:
AgentTesla, DarkTortilla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1482318
Behaviour
Behavior Graph:
n/a
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/81794c637b54a673f7e5af3f1f0aeb3479e9279b6870c07caa0a380ea7ad1dce
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/81794c637b54a673f7e5af3f1f0aeb3479e9279b6870c07caa0a380ea7ad1dce/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-07-25 00:24:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qf4uyy33ksthh57fv47r6cxlgr46sj43nbyma7fkbi4a5j5ndxha._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla credential_access discovery keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240725-ap6a9swepp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Credentials from Password Stores: Credentials from Web Browsers
AgentTesla
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f12bd5d0-42d2-469c-a45d-df8a2397bdf9
Unpacked files
SH256 hash:
56aaa2b9e53d69dd75c8d1247220d8ea97b1b7705796b2e2ddff34c7eea8adee
MD5 hash:
50f28d178452b2db4e1f466904e55c78
SHA1 hash:
d9a3246a570715d756a6c653b6818afb99ae39ec
Link:
https://www.unpac.me/results/4f81a768-60ed-4b81-8952-f023065ce25e/
SH256 hash:
0781f74db6c9ff7aa0c1e76dd0ebc4a9575fba6caca9aac9fb0131c5a73c84be
MD5 hash:
2c064163cda2f093cf6d20302481dff7
SHA1 hash:
cf948b10d999c369ef51972f86278a4f536d400d
Link:
https://www.unpac.me/results/4f81a768-60ed-4b81-8952-f023065ce25e/
SH256 hash:
2db82e9b91b1ccb1957b4e06ec49bfb0096e973213fc1786de1bbe3162f5df5a
MD5 hash:
27dea42a70bd7e948f1171ce873878a1
SHA1 hash:
b87051d51479c093cdf3e721acea4fd8b940b1e5
Link:
https://www.unpac.me/results/4f81a768-60ed-4b81-8952-f023065ce25e/
SH256 hash:
97bb9b58c6c4e5c4a6ed8071c112dba767a69b189e7c52a614f23b5af12c0320
MD5 hash:
bc7b595ce965d25f03bacd28ebc8065c
SHA1 hash:
566c6f801b99ae44166ed4c04fa9c0cffd4f823f
Detections:
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
MALWARE_Win_AgentTeslaV2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/4f81a768-60ed-4b81-8952-f023065ce25e/
Parent samples :
4462f40cbb243a63f60fcc2c1b03150dc45d9fd0e8cef78c7e6ea9de60aa32cf
22c2a9575da0e9f502f9dd909d9c490e3ee66013ffd23a77929cc65d15fe11e7
de9d7a5b1df10e151659a0867c4c7004ff4f023acdb9071f88b0939c1cb37dea
6471b244c80aa0b48201013b69f1b195805946cd3b55282499bcc87dff650856
81794c637b54a673f7e5af3f1f0aeb3479e9279b6870c07caa0a380ea7ad1dce
SH256 hash:
81794c637b54a673f7e5af3f1f0aeb3479e9279b6870c07caa0a380ea7ad1dce
MD5 hash:
292b38ef1365ee19ef46925535305891
SHA1 hash:
4e7d964212b15097bc867935dae6ab71b72ec6fc
Link:
https://www.unpac.me/results/4f81a768-60ed-4b81-8952-f023065ce25e/
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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

DarkTortilla

Executable exe 81794c637b54a673f7e5af3f1f0aeb3479e9279b6870c07caa0a380ea7ad1dce

(this sample)

  
Link
https://bbs.kafan.cn/forum-31-1.html
  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments