agenttesla | 4d32ec11bf2963e4a505853ea46c4b15b73ad0b435fd3f279d034480335901a9

Analysis

max time kernel
48s
max time network
46s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
22/11/2022, 08:24

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General

Target
BL copy.exe
Size 478KB
Sample221122-kap1vaaf6y
SHA256 4d32ec11bf2963e4a505853ea46c4b15b73ad0b435fd3f279d034480335901a9
MD5 c0ba88e93c37a5381ed30ebe13e3230d
SHA1 dbb6385a5acc6993e234d533b75bfc888dab8649
SHA512 0c6160803d16677c7b00821dc612aea82ed6424272160d9117076227b762609bab2a22b18b1edc88c91579ef04f88877601176e70420a2ecdda63990fc1f496e
SSDEEP 6144:bEa0biTgOrovwH/BdHZONl0E5aHKVRjT8i1M1IeFZSjyhlk7NQr1LsPD4RtR0:YfyovWHONluHKVRjAiCuyh86BgD4l0
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

https://api.telegram.org/bot5663632223:AAG5KHZDs7KWoaqTYx3lSyFlOdfD9vGegQo/

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Executes dropped EXE 2 IoCs

pid	Process
276	aiikyaiziv.exe
688	aiikyaiziv.exe

Loads dropped DLL 2 IoCs

pid	Process
840	BL copy.exe
276	aiikyaiziv.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aiikyaiziv.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aiikyaiziv.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aiikyaiziv.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\raatsuimwhcyt = "C:\\Users\\Admin\\AppData\\Roaming\\ubmpptut\\rulqhky.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\aiikyaiziv.exe\" C:\\Users\\Admin\\AppData\\Loca"	aiikyaiziv.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\MYAPP = "C:\\Users\\Admin\\AppData\\Roaming\\MYAPP\\MYAPP.exe"	aiikyaiziv.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
3	api.ipify.org
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 276 set thread context of 688	276	aiikyaiziv.exe	29

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
688	aiikyaiziv.exe
688	aiikyaiziv.exe
688	aiikyaiziv.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
276	aiikyaiziv.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	688	aiikyaiziv.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 840 wrote to memory of 276	840	BL copy.exe	27
PID 840 wrote to memory of 276	840	BL copy.exe	27
PID 840 wrote to memory of 276	840	BL copy.exe	27
PID 840 wrote to memory of 276	840	BL copy.exe	27
PID 276 wrote to memory of 688	276	aiikyaiziv.exe	29
PID 276 wrote to memory of 688	276	aiikyaiziv.exe	29
PID 276 wrote to memory of 688	276	aiikyaiziv.exe	29
PID 276 wrote to memory of 688	276	aiikyaiziv.exe	29
PID 276 wrote to memory of 688	276	aiikyaiziv.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aiikyaiziv.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aiikyaiziv.exe

C:\Users\Admin\AppData\Local\Temp\BL copy.exe
"C:\Users\Admin\AppData\Local\Temp\BL copy.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:840
- C:\Users\Admin\AppData\Local\Temp\aiikyaiziv.exe
  "C:\Users\Admin\AppData\Local\Temp\aiikyaiziv.exe" C:\Users\Admin\AppData\Local\Temp\iexhn.w
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:276
- - C:\Users\Admin\AppData\Local\Temp\aiikyaiziv.exe
    "C:\Users\Admin\AppData\Local\Temp\aiikyaiziv.exe" C:\Users\Admin\AppData\Local\Temp\iexhn.w
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:688

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

aiikyaiziv.exe

Path C:\Users\Admin\AppData\Local\Temp\aiikyaiziv.exe
Size 7KB
SHA256 1d3019ff5f6a2d28f7d876fdbbc8acc1215368f3f562fa988f6bacba4f6b23d7
MD5 27d66b1f9d5a06f086d46350d0e27fe9
SHA1 c42051eccb3ffb7d12a18136a8f3aa702e038417
SHA512 be7ded13a8517ad800ad3fbe078dea8040e1b28a706eb58c264deaf77fb4957228983069c626aa9a63a1d62b967e2e131148d798d9a94b64eccc6264931ce8a6
SSDEEP 96:BcfVVj9hxtqlkp6KqlLPOoynfdcc3w7Ibx0c:Bcfbfpx2POoynlcIw7Iic
MD5 SHA1 SHA512 SSDEEP

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aiikyaiziv.exe

Path C:\Users\Admin\AppData\Local\Temp\aiikyaiziv.exe
Size 7KB
SHA256 1d3019ff5f6a2d28f7d876fdbbc8acc1215368f3f562fa988f6bacba4f6b23d7
MD5 27d66b1f9d5a06f086d46350d0e27fe9
SHA1 c42051eccb3ffb7d12a18136a8f3aa702e038417
SHA512 be7ded13a8517ad800ad3fbe078dea8040e1b28a706eb58c264deaf77fb4957228983069c626aa9a63a1d62b967e2e131148d798d9a94b64eccc6264931ce8a6
SSDEEP 96:BcfVVj9hxtqlkp6KqlLPOoynfdcc3w7Ibx0c:Bcfbfpx2POoynlcIw7Iic
MD5 SHA1 SHA512 SSDEEP

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aiikyaiziv.exe

Path C:\Users\Admin\AppData\Local\Temp\aiikyaiziv.exe
Size 7KB
SHA256 1d3019ff5f6a2d28f7d876fdbbc8acc1215368f3f562fa988f6bacba4f6b23d7
MD5 27d66b1f9d5a06f086d46350d0e27fe9
SHA1 c42051eccb3ffb7d12a18136a8f3aa702e038417
SHA512 be7ded13a8517ad800ad3fbe078dea8040e1b28a706eb58c264deaf77fb4957228983069c626aa9a63a1d62b967e2e131148d798d9a94b64eccc6264931ce8a6
SSDEEP 96:BcfVVj9hxtqlkp6KqlLPOoynfdcc3w7Ibx0c:Bcfbfpx2POoynlcIw7Iic
MD5 SHA1 SHA512 SSDEEP

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cdnjja.z

Path C:\Users\Admin\AppData\Local\Temp\cdnjja.z
Size 296KB
SHA256 f4a92a2684b2e3128c83ead312f99f6f674705eb8e7390343d989cfb58838913
MD5 f2287e43eba99766fa513804d8e14539
SHA1 53a14c5f1e5ffe5d51ee36f7e2cfbdd953ce9599
SHA512 c8852a775d292467388eafc3aedbfdfebabf2dc15139df42b2c16bc057de18d4adbe93d43ab88c24a21c16ac88b55b64dcff39e7ced26cf1bf287a5492764402
SSDEEP 6144:wNxThhV5pzOTSfkXTcW+FKhZMGtWCvxehkvJetQ/9YxZAtruPikl85o1lPUaHU:wNZQT7cW+Y60okvJeC9YnAtrZK82E6U
MD5 SHA1 SHA512 SSDEEP

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iexhn.w

Path C:\Users\Admin\AppData\Local\Temp\iexhn.w
Size 7KB
SHA256 7c6ec6ef27019dc456e0e2714730374d38319e681ba36cc633375de57b3ed110
MD5 7e3cc5383386f3a981bda79f437a9bc1
SHA1 8df7941ad5fd04aaa657220fac18026250036f76
SHA512 3a3b3714daaab812059bcb937730604bc437fd708101f3bee6fc682b14623df01b3112799804e3ede41747de645d529832ccb82ba99a4b6efe34390b3ecdc6ea
SSDEEP 96:rAGQ0Mh4zutbz3ZP4/bIg9/ZBTWdlWMpR+/F6rKU41uty2xUwfc2fwUGyZzD++Wy:rADk6pZP4/r9Xy+96rLvxj/ceE+yBE
MD5 SHA1 SHA512 SSDEEP

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aiikyaiziv.exe

Path \Users\Admin\AppData\Local\Temp\aiikyaiziv.exe
Size 7KB
SHA256 1d3019ff5f6a2d28f7d876fdbbc8acc1215368f3f562fa988f6bacba4f6b23d7
MD5 27d66b1f9d5a06f086d46350d0e27fe9
SHA1 c42051eccb3ffb7d12a18136a8f3aa702e038417
SHA512 be7ded13a8517ad800ad3fbe078dea8040e1b28a706eb58c264deaf77fb4957228983069c626aa9a63a1d62b967e2e131148d798d9a94b64eccc6264931ce8a6
SSDEEP 96:BcfVVj9hxtqlkp6KqlLPOoynfdcc3w7Ibx0c:Bcfbfpx2POoynlcIw7Iic
MD5 SHA1 SHA512 SSDEEP

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aiikyaiziv.exe

Path \Users\Admin\AppData\Local\Temp\aiikyaiziv.exe
Size 7KB
SHA256 1d3019ff5f6a2d28f7d876fdbbc8acc1215368f3f562fa988f6bacba4f6b23d7
MD5 27d66b1f9d5a06f086d46350d0e27fe9
SHA1 c42051eccb3ffb7d12a18136a8f3aa702e038417
SHA512 be7ded13a8517ad800ad3fbe078dea8040e1b28a706eb58c264deaf77fb4957228983069c626aa9a63a1d62b967e2e131148d798d9a94b64eccc6264931ce8a6
SSDEEP 96:BcfVVj9hxtqlkp6KqlLPOoynfdcc3w7Ibx0c:Bcfbfpx2POoynlcIw7Iic
MD5 SHA1 SHA512 SSDEEP

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memory/688-66-0x0000000000450000-0x000000000048C000-memory.dmp

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memory/688-67-0x0000000000400000-0x000000000044E000-memory.dmp

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memory/840-54-0x0000000076561000-0x0000000076563000-memory.dmp

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