MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb39ca4eb7f5c23639bf05752a6e57f28346b35ad175845b2ed0a5caa019fe77. 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


AgentTesla


Vendor detections: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cb39ca4eb7f5c23639bf05752a6e57f28346b35ad175845b2ed0a5caa019fe77
SHA3-384 hash: b085986d13d98874f31f6b08c1813322d91018bbd0e0597bfeffeec1efb6b8fecbf727e6ff45a0212b44ed2195a27af9
SHA1 hash: 9dd87d3353fbc6b6ab7848928f6b077c312fb630
MD5 hash: 863993c31ff4fcbcb7b2fc679ba68ade
humanhash: saturn-blossom-grey-october
File name:378753687654345678345602.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:369'203 bytes
First seen:2021-03-24 11:11:40 UTC
Last seen:2021-03-24 15:11:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:YAP48mM8CzC09in7W7uAnQ1qCn4vEeyDtYhWLHe:DbW7WiL1DnBD1He
Threatray 3'442 similar samples on MalwareBazaar
TLSH F674AED1C2886CE5F82A17B11836DE22115BFF69A9B4551F651F782E9A7338330B7C0B
Reporter Anonymous
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
3
# of downloads :
142
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
378753687654345678345602.exe
Verdict:
Malicious activity
Analysis date:
2021-03-24 11:18:11 UTC
Tags:
installer trojan rat agenttesla
Link:
https://app.any.run/tasks/09c375ea-a7da-4bfb-bc94-70a44f6c158a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Inject4.9575.6476.26111.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a file in the %AppData% subdirectories
Launching a process
Creating a window
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Result
Verdict:
SUSPICIOUS
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:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/652068
Signature
.NET source code contains very large array initializations
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Installs a global keyboard hook
Machine Learning detection for dropped file
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: MSBuild connects to smtp port
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 374982 Sample: 378753687654345678345602.exe Startdate: 24/03/2021 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Multi AV Scanner detection for dropped file 2->38 40 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->40 42 5 other signatures 2->42 6 jehavex.exe 11 2->6         started        10 378753687654345678345602.exe 1 13 2->10         started        12 jehavex.exe 11 2->12         started        process3 file4 22 C:\Users\user\AppData\...\dej2mnwmn8m.dll, PE32 6->22 dropped 44 Writes to foreign memory regions 6->44 46 Maps a DLL or memory area into another process 6->46 14 MSBuild.exe 8 6->14         started        24 C:\Users\user\AppData\Roaming\...\jehavex.exe, PE32 10->24 dropped 26 C:\Users\user\AppData\...\dej2mnwmn8m.dll, PE32 10->26 dropped 18 MSBuild.exe 4 10->18         started        28 C:\Users\user\AppData\...\dej2mnwmn8m.dll, PE32 12->28 dropped 48 Multi AV Scanner detection for dropped file 12->48 20 MSBuild.exe 4 12->20         started        signatures5 process6 dnsIp7 30 smtp.zarpagolves.com 14->30 32 208.91.199.223, 49759, 49765, 587 PUBLIC-DOMAIN-REGISTRYUS United States 14->32 34 us2.smtp.mailhostbox.com 208.91.199.225, 49742, 49750, 49752 PUBLIC-DOMAIN-REGISTRYUS United States 14->34 50 Tries to steal Mail credentials (via file access) 14->50 52 Tries to harvest and steal ftp login credentials 14->52 54 Tries to harvest and steal browser information (history, passwords, etc) 14->54 56 Installs a global keyboard hook 14->56 58 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->58 60 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 18->60 62 Found evasive API chain (trying to detect sleep duration tampering with parallel thread) 18->62 signatures8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cb39ca4eb7f5c23639bf05752a6e57f28346b35ad175845b2ed0a5caa019fe77/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-24 02:58:23 UTC
AV detection:
26 of 48 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zm44utvx6xbdmon7av2su3sx6kbunm222f2yiwzo2cs4viaz7z3q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
168d180de146160d0ba93335e36e00d62029ea13f0a41ace68a76e8a2b547ac3
AgentTesla
1be6dc89ef7b01bdc6563c86c36e84b7560d85bab73d7186e2f223550461c5c4
AgentTesla
2ee367d817eaeda203c4cf930fbcc949ac75858e7a64010de16cb7cc300bc6b4
AgentTesla
4f7f0a1c3a689a98727e06797f7b4fc2c67e843c56b7514b71145242d624f2e5
AgentTesla
5a522a09a839c118c67c9ff08e9c0a00f8ef0b34ed0f3404496e43f36b78839d
AgentTesla
5b038d7385cf7cfa9aac553b025a1b686c90a9f692a7ad78d817e56aaf5ed935
AgentTesla
68abea90e0a89bb507eaa79fdd8df2e0ba0ad79e6f117cccbd4a860cda4e389e
AgentTesla
7b13c46563325621aa15ff5ff9b39f5ea09367e4e91a16a7ff4cdcd52e0e5332
AgentTesla
c3624982c4e27761f6d132bb33b9fd3618642fdc0cc5949a6207ceef392b3d8a
AgentTesla
ddd2c3304f4423f4348cf0d858ecba70eaaba5b652969d5f582a534ccfb55093
AgentTesla
+ 3'432 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
persistence
Link:
https://tria.ge/reports/210324-rczy1n7xss/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Unpacked files
SH256 hash:
7cfb186b76e3bc6f4bbe71978f1a2267b4c1d5f04e176e645c6ac23aa4cb814f
MD5 hash:
801bb9bab701a3fab46f273e09177fc1
SHA1 hash:
25076a582f52006fad36b35ef8a130c599fd0379
Link:
https://www.unpac.me/results/f63723d5-0965-429e-966c-c48ce1d29079/
SH256 hash:
cb39ca4eb7f5c23639bf05752a6e57f28346b35ad175845b2ed0a5caa019fe77
MD5 hash:
863993c31ff4fcbcb7b2fc679ba68ade
SHA1 hash:
9dd87d3353fbc6b6ab7848928f6b077c312fb630
Link:
https://www.unpac.me/results/f63723d5-0965-429e-966c-c48ce1d29079/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Eldorado
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/cb39ca4eb7f5c23639bf05752a6e57f28346b35ad175845b2ed0a5caa019fe77

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

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

Comments