azorult | a2941f7a8317fef14fd8297468e6dab4f2fb3dec806871dbd4cb7f9c7ade5b4e

Analysis

max time kernel
133s
max time network
134s
platform
windows10_x64
resource
win10v20210410
submitted
22-04-2021 09:39

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General

Target

SKM_C258 Up21042213080.exe
Size

245KB
MD5

4b307765c72ab613ab271134f9f2a818
SHA1

7c16e65a70d92c7a633990c772242a5069b79423
SHA256

a2941f7a8317fef14fd8297468e6dab4f2fb3dec806871dbd4cb7f9c7ade5b4e
SHA512

177f17e4447291f16ab4b174ada22ee214bd67c6df57f04e8dd464c86c6fec0cde27b68066fcae8ec4ee62e9b61ad8b5f331bd1e564315eb5e8341391a30588b

Score

10^/10

azorult oski discovery infostealer spyware stealer trojan

Malware Config

Extracted

Family

oski

45.144.225.118

Extracted

Family

azorult

http://lexusbiscuit.com/OiuBn/index.php

Signatures

Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
trojan infostealer azorult
Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

174841844588.exe174841844588.exe

pid process

2628 174841844588.exe
1288 174841844588.exe

pid	process
2628	174841844588.exe
1288	174841844588.exe

Loads dropped DLL 9 IoCs

Processes:

SKM_C258 Up21042213080.exeSKM_C258 Up21042213080.exe174841844588.exe174841844588.exe

pid	process
3680	SKM_C258 Up21042213080.exe
3784	SKM_C258 Up21042213080.exe
3784	SKM_C258 Up21042213080.exe
3784	SKM_C258 Up21042213080.exe
2628	174841844588.exe
1288	174841844588.exe
1288	174841844588.exe
1288	174841844588.exe
1288	174841844588.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 local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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 cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 2 IoCs

Processes:

SKM_C258 Up21042213080.exe174841844588.exe

description	pid	process	target process
PID 3680 set thread context of 3784	3680	SKM_C258 Up21042213080.exe	SKM_C258 Up21042213080.exe
PID 2628 set thread context of 1288	2628	174841844588.exe	174841844588.exe

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

System Information Discovery
T1082

NSIS installer 6 IoCs

installer

Processes:

resource	yara_rule
C:\ProgramData\174841844588.exe	nsis_installer_1
C:\ProgramData\174841844588.exe	nsis_installer_2
C:\ProgramData\174841844588.exe	nsis_installer_1
C:\ProgramData\174841844588.exe	nsis_installer_2
C:\ProgramData\174841844588.exe	nsis_installer_1
C:\ProgramData\174841844588.exe	nsis_installer_2

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

SKM_C258 Up21042213080.exe174841844588.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	SKM_C258 Up21042213080.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	174841844588.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	174841844588.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3088 taskkill.exe
NTFS ADS 1 IoCs

Processes:

SKM_C258 Up21042213080.exe

description ioc process

File created C:\ProgramData\174841844588.exe:Zone.Identifier SKM_C258 Up21042213080.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

174841844588.exe

pid process

1288 174841844588.exe
1288 174841844588.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

SKM_C258 Up21042213080.exe174841844588.exe

pid process

3680 SKM_C258 Up21042213080.exe
2628 174841844588.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3088 taskkill.exe

pid	process
3088	taskkill.exe

description	ioc	process
File created	C:\ProgramData\174841844588.exe:Zone.Identifier	SKM_C258 Up21042213080.exe

pid	process
1288	174841844588.exe
1288	174841844588.exe

description	pid	process
Token: SeDebugPrivilege	3088	taskkill.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

SKM_C258 Up21042213080.exeSKM_C258 Up21042213080.execmd.exe174841844588.exe

description	pid	process	target process
PID 3680 wrote to memory of 3784	3680	SKM_C258 Up21042213080.exe	SKM_C258 Up21042213080.exe
PID 3680 wrote to memory of 3784	3680	SKM_C258 Up21042213080.exe	SKM_C258 Up21042213080.exe
PID 3680 wrote to memory of 3784	3680	SKM_C258 Up21042213080.exe	SKM_C258 Up21042213080.exe
PID 3680 wrote to memory of 3784	3680	SKM_C258 Up21042213080.exe	SKM_C258 Up21042213080.exe
PID 3784 wrote to memory of 2628	3784	SKM_C258 Up21042213080.exe	174841844588.exe
PID 3784 wrote to memory of 2628	3784	SKM_C258 Up21042213080.exe	174841844588.exe
PID 3784 wrote to memory of 2628	3784	SKM_C258 Up21042213080.exe	174841844588.exe
PID 3784 wrote to memory of 3428	3784	SKM_C258 Up21042213080.exe	cmd.exe
PID 3784 wrote to memory of 3428	3784	SKM_C258 Up21042213080.exe	cmd.exe
PID 3784 wrote to memory of 3428	3784	SKM_C258 Up21042213080.exe	cmd.exe
PID 3428 wrote to memory of 3088	3428	cmd.exe	taskkill.exe
PID 3428 wrote to memory of 3088	3428	cmd.exe	taskkill.exe
PID 3428 wrote to memory of 3088	3428	cmd.exe	taskkill.exe
PID 2628 wrote to memory of 1288	2628	174841844588.exe	174841844588.exe
PID 2628 wrote to memory of 1288	2628	174841844588.exe	174841844588.exe
PID 2628 wrote to memory of 1288	2628	174841844588.exe	174841844588.exe
PID 2628 wrote to memory of 1288	2628	174841844588.exe	174841844588.exe

C:\Users\Admin\AppData\Local\Temp\SKM_C258 Up21042213080.exe
"C:\Users\Admin\AppData\Local\Temp\SKM_C258 Up21042213080.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3680

C:\Users\Admin\AppData\Local\Temp\SKM_C258 Up21042213080.exe
"C:\Users\Admin\AppData\Local\Temp\SKM_C258 Up21042213080.exe"
2⤵
- Loads dropped DLL
- Checks processor information in registry
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:3784

C:\ProgramData\174841844588.exe
"C:\ProgramData\174841844588.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2628

C:\ProgramData\174841844588.exe
"C:\ProgramData\174841844588.exe"
4⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1288

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /pid 3784 & erase C:\Users\Admin\AppData\Local\Temp\SKM_C258 Up21042213080.exe & RD /S /Q C:\\ProgramData\\986984471691488\\* & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:3428

C:\Windows\SysWOW64\taskkill.exe
taskkill /pid 3784
4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3088

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\174841844588.exe
MD5
4f5676acbda67ce0627353f56fea5908

SHA1
ca245eaaee25271fe2138179e19998807316947d

SHA256
f9fe8c62e7382cd9b7b1a500ba6265eb14c66f16a0c1a0fac7b1b4f809f2269f

SHA512
302c6e0293a84a1244a81301b7c3a69fb195b3eed48ad921fc0c163f305bf3750cb1c6805fd2836e23179ff4703cc6b1cd80e1422d09a37e44838bf35faac4ca

Download Submit
C:\ProgramData\174841844588.exe
MD5
4f5676acbda67ce0627353f56fea5908

SHA1
ca245eaaee25271fe2138179e19998807316947d

SHA256
f9fe8c62e7382cd9b7b1a500ba6265eb14c66f16a0c1a0fac7b1b4f809f2269f

SHA512
302c6e0293a84a1244a81301b7c3a69fb195b3eed48ad921fc0c163f305bf3750cb1c6805fd2836e23179ff4703cc6b1cd80e1422d09a37e44838bf35faac4ca

Download Submit
C:\ProgramData\174841844588.exe
MD5
4f5676acbda67ce0627353f56fea5908

SHA1
ca245eaaee25271fe2138179e19998807316947d

SHA256
f9fe8c62e7382cd9b7b1a500ba6265eb14c66f16a0c1a0fac7b1b4f809f2269f

SHA512
302c6e0293a84a1244a81301b7c3a69fb195b3eed48ad921fc0c163f305bf3750cb1c6805fd2836e23179ff4703cc6b1cd80e1422d09a37e44838bf35faac4ca

Download Submit
\ProgramData\mozglue.dll
MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
\ProgramData\nss3.dll
MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
\ProgramData\sqlite3.dll
MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

Download Submit
\Users\Admin\AppData\Local\Temp\8093A008\mozglue.dll
MD5
9e682f1eb98a9d41468fc3e50f907635

SHA1
85e0ceca36f657ddf6547aa0744f0855a27527ee

SHA256
830533bb569594ec2f7c07896b90225006b90a9af108f49d6fb6bebd02428b2d

SHA512
230230722d61ac1089fabf3f2decfa04f9296498f8e2a2a49b1527797dca67b5a11ab8656f04087acadf873fa8976400d57c77c404eba4aff89d92b9986f32ed

Download Submit
\Users\Admin\AppData\Local\Temp\8093A008\msvcp140.dll
MD5
109f0f02fd37c84bfc7508d4227d7ed5

SHA1
ef7420141bb15ac334d3964082361a460bfdb975

SHA256
334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

SHA512
46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

Download Submit
\Users\Admin\AppData\Local\Temp\8093A008\nss3.dll
MD5
556ea09421a0f74d31c4c0a89a70dc23

SHA1
f739ba9b548ee64b13eb434a3130406d23f836e3

SHA256
f0e6210d4a0d48c7908d8d1c270449c91eb4523e312a61256833bfeaf699abfb

SHA512
2481fc80dffa8922569552c3c3ebaef8d0341b80427447a14b291ec39ea62ab9c05a75e85eef5ea7f857488cab1463c18586f9b076e2958c5a314e459045ede2

Download Submit
\Users\Admin\AppData\Local\Temp\8093A008\vcruntime140.dll
MD5
7587bf9cb4147022cd5681b015183046

SHA1
f2106306a8f6f0da5afb7fc765cfa0757ad5a628

SHA256
c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

SHA512
0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

Download Submit
\Users\Admin\AppData\Local\Temp\nsa2EC8.tmp\w3446rz8v6r1of.dll
MD5
d6315af2c746f12d5cbb4d50f810f803

SHA1
9a94635ace6cfefd1609f092e27492615e66bf20

SHA256
1f8a1064acc19a09c892b9c5ffd72594abd362c5755248283232874cc7db3eb2

SHA512
06954154729cd8304228240604b677c8b50bfe792d4214dd8abd19754f4c14679aa8b70ffeab8fdeb003786026c3cadd4cdb2ce007cd4009bf4bcbe695249048

Download Submit
\Users\Admin\AppData\Local\Temp\nsz451F.tmp\52nud.dll
MD5
4df22de7d93b168e76745c87b8fca9a4

SHA1
4a6b8cd2fd64a23503b55e921338690e115d76d5

SHA256
7931979c491e927dcc7ded3eaf14c9e621824cd8a6a41b444b6198ef0fbad5dd

SHA512
bbefd8683dd9648b0906522d638977ddc25d27011f2a8201ad34298e02b5fdd610c8c5dd0a7e092576f1764448af2dd5999b161d2a503e5f90333431b837e280

Download Submit
memory/1288-127-0x000000000041A684-mapping.dmp

Download
memory/1288-130-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2628-129-0x0000000002240000-0x0000000002242000-memory.dmp

Filesize
8KB

Download
memory/2628-121-0x0000000000000000-mapping.dmp

Download
memory/3088-126-0x0000000000000000-mapping.dmp

Download
memory/3428-125-0x0000000000000000-mapping.dmp

Download
memory/3680-115-0x0000000002240000-0x0000000002242000-memory.dmp

Filesize
8KB

Download
memory/3784-117-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3784-116-0x000000000040717B-mapping.dmp

Download