MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c01aa0e49d9443f5f4a9c46893397d054eea93f921734704e1294d77d44876af. 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: 16


Intelligence 16 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c01aa0e49d9443f5f4a9c46893397d054eea93f921734704e1294d77d44876af
SHA3-384 hash: 1d8ae780c1b8a5dd83d2740085c97f6f3029da134485597bd4af9ff772d62bea7efc789d306c0611a640c16e1b637da2
SHA1 hash: bd56e1ea73bf48350640d8430cbada1997a8435b
MD5 hash: d7f9883d7d1e2598cdb4bc244292d951
humanhash: carolina-cat-three-quiet
File name:DHL OVERDUE LETTER.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:809'984 bytes
First seen:2023-08-22 18:27:49 UTC
Last seen:2023-08-28 12:40:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:ClLzC4jRyum9eCEmmV3IUpTO43eB8HvBC6yjKjM2CXvsAdlMLkhf9f:GLO/PEmM1pThuBevzyjAK/d2A
Threatray 5'612 similar samples on MalwareBazaar
TLSH T19205DF7424B74A6CF1A1D07BAD90E4087F68B302F4DB91252955EB53928AD902CFEF37
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
297
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
DHL OVERDUE LETTER.exe
Verdict:
Malicious activity
Analysis date:
2023-08-22 18:29:21 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/de67ad58-7b30-4ec1-ae7d-5419465dc0a2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/444215/
Detection(s):
SecuriteInfo.com.FileRepMalware.20165.22025.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Reading critical registry keys
Sending an HTTP GET request
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/64e4fe332a89064e5596ca24/reports/42c871b5-6f9a-4bd4-bf5e-89b97af4c0e1/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c01aa0e49d9443f5f4a9c46893397d054eea93f921734704e1294d77d44876af
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/87f1af06-d81b-4585-a8d1-68ba88304882
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1295428
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: MSBuild connects to smtp port
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1295428 Sample: DHL_OVERDUE_LETTER.exe Startdate: 22/08/2023 Architecture: WINDOWS Score: 100 38 Found malware configuration 2->38 40 Antivirus / Scanner detection for submitted sample 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 7 other signatures 2->44 6 DHL_OVERDUE_LETTER.exe 1 5 2->6         started        10 Nkgholgcqv.exe 5 2->10         started        12 Nkgholgcqv.exe 4 2->12         started        process3 file4 22 C:\Users\user\AppData\...22kgholgcqv.exe, PE32 6->22 dropped 46 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 6->46 48 Writes to foreign memory regions 6->48 50 Injects a PE file into a foreign processes 6->50 14 MSBuild.exe 15 2 6->14         started        52 Antivirus detection for dropped file 10->52 54 Multi AV Scanner detection for dropped file 10->54 56 Machine Learning detection for dropped file 10->56 18 MSBuild.exe 2 10->18         started        20 MSBuild.exe 12->20         started        signatures5 process6 dnsIp7 24 mail.sirisexpress.com 23.106.253.14, 49718, 49754, 49756 LEASEWEB-APAC-SIN-11LeasewebAsiaPacificpteltdSG Singapore 14->24 26 api4.ipify.org 173.231.16.76, 443, 49713, 49755 WEBNXUS United States 14->26 28 api.ipify.org 14->28 58 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->58 60 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->60 62 May check the online IP address of the machine 14->62 30 104.237.62.211, 443, 49746 WEBNXUS United States 18->30 32 192.168.2.1 unknown unknown 18->32 34 api.ipify.org 18->34 36 api.ipify.org 20->36 64 Tries to steal Mail credentials (via file / registry access) 20->64 66 Tries to harvest and steal browser information (history, passwords, etc) 20->66 signatures8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c01aa0e49d9443f5f4a9c46893397d054eea93f921734704e1294d77d44876af/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2023-08-22 14:30:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
20 of 23 (86.96%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yankbze5srb7l5fjyrujgol5avhove7zefzuobhbffgxpvcio2xq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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143152208fb2b0e16a666019a6d0c0a4c8b5177707d24d1a1bb97568f34bd089
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2627e96c1ea96adf04b4709b5cdb2fe6b9cd9b82ff959cdde4e61a4acb9cbf4d
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478d51fa24c69ccaa66567cbcdf3105f7c302bbba2b88db7cfee19fe84acf64f
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4844ecc408afe476195c13a782a5b3f175f63c5cfbcb69229f45e0713fb33c59
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8076ade469725fb5e2b888de4de7f06233016247e435ab43d89739f29ba6f9f9
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891506e9adca3e63194bd09965a91917768320436f7b5d940a4ae7a1d334f831
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90c183ea6ea59b3bac9dc0e44e449fd950e642ab4127de320ab692bc01136d5b
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b3be1fe7098ff321491612d574fa9b51205e823f9883abe7f234aaa39f0a32bd
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bc6ac708586d3cd72851c365708a555068339aa2d10b4d031c5ed15bc4269d2b
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be0844c44e24e3abe80a169bf181bfdd2e26cd402f10329c62b6175467a83937
AgentTesla
+ 5'602 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  6/10
Tags:
persistence
Link:
https://tria.ge/reports/230822-w4babsee36/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Unpacked files
SH256 hash:
2fa3a72ad63cc37db5a07a8a570be64339188789e09df87ca4c1e44a5cb1b9a0
MD5 hash:
259264051cfe2d0bd56d01b1da3f2c26
SHA1 hash:
ff05cb9b0a6f7b53b1724a8e5e8c15bd3ff55ab9
Link:
https://www.unpac.me/results/a3992bd8-c02b-4f5f-b3d9-b77d6261539f/
SH256 hash:
60ef7180882193a43f6378dfe4301ce58392f12113a1c574434333107b72563b
MD5 hash:
281637a5ef6cb2d5514c576a85d61e1b
SHA1 hash:
87b917d4da0a837c4df741e1c864034e5b46ca20
Link:
https://www.unpac.me/results/a3992bd8-c02b-4f5f-b3d9-b77d6261539f/
SH256 hash:
a5bb69e8eb8f39ddf00bdfe2034d4bfcb7f17fe8de32c374c7183a22b38bf23f
MD5 hash:
efa98bccfb47f235c8bc8b941aae2645
SHA1 hash:
6094a073a76571fce2ceb33d95fe3aa1868387fe
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/a3992bd8-c02b-4f5f-b3d9-b77d6261539f/
Parent samples :
c01aa0e49d9443f5f4a9c46893397d054eea93f921734704e1294d77d44876af
b9c74c6cf3df328ddeee396c2602a7d93a6fa4f8fc3f1e67e41d91e290592e4e
a5bb69e8eb8f39ddf00bdfe2034d4bfcb7f17fe8de32c374c7183a22b38bf23f
e665c078835904e48daa2a64c901b5c9a22c3ba292f80d4e718e3fc88b26a2fe
d8b5d4fe4499976563bd1d47c252c70c0e0e4aa424ff5b8a082a2aaa6cc39ed7
9e59b864f851b2101f28ed67a8f5e52fbac208c1b4fda85b7b378dd28e182941
SH256 hash:
d4f8b03c29d0de2c81a19f648f05769b191f0f526a87a4555c9341eb9088bcd4
MD5 hash:
10bc194a3740f78b1b3e532f88cf70a2
SHA1 hash:
374b89790cb5f5aa4836bbf5095c8e2114894632
Link:
https://www.unpac.me/results/a3992bd8-c02b-4f5f-b3d9-b77d6261539f/
SH256 hash:
c01aa0e49d9443f5f4a9c46893397d054eea93f921734704e1294d77d44876af
MD5 hash:
d7f9883d7d1e2598cdb4bc244292d951
SHA1 hash:
bd56e1ea73bf48350640d8430cbada1997a8435b
Link:
https://www.unpac.me/results/a3992bd8-c02b-4f5f-b3d9-b77d6261539f/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c01aa0e49d94/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.95
Link:
https://yomi.yoroi.company/submissions/c01aa0e49d9443f5f4a9c46893397d054eea93f921734704e1294d77d44876af

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
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

AgentTesla

rar ed330c5047a23fc092b5700debf0ed142fb0e83a79b75a26ab7847b13b8603a6

AgentTesla

Executable exe c01aa0e49d9443f5f4a9c46893397d054eea93f921734704e1294d77d44876af

(this sample)

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/444215/
  
Dropped by
SHA256 ed330c5047a23fc092b5700debf0ed142fb0e83a79b75a26ab7847b13b8603a6
  
Dropped by
MD5 e8a9c8e73dc876371ca7fbcab5c83b3a

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