b18371a79d13c04167d3cbd2ef705fddf81ec3d5d012755a614f3790b651eaea

Analysis

max time kernel
137s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
28/08/2022, 11:27

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General

Target
25d2371e6c78701a487bb6a59cca23e3.exe
Size 238KB
Sample220828-nkejmsgfep
SHA256 b18371a79d13c04167d3cbd2ef705fddf81ec3d5d012755a614f3790b651eaea
MD5 25d2371e6c78701a487bb6a59cca23e3
SHA1 2a8e92099ccc4e93c4b489fc3dd620109aa79df0
SHA512 686c3dd6f9c2051ad6d53b348bf39773aeca8f72fa9ec31c21020bf6b6423ffe6dfe4573bc55bc28f019916088d48ede0ea968395d7c377cf5be484a3eaf457d
SSDEEP 6144:UEXdmfk1pFEqXU2VTke8mAWgjyjTrnvNBZnSLQts:vmfkJfXXvRJTDN7nje
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery spyware stealer

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	25d2371e6c78701a487bb6a59cca23e3.exe

Loads dropped DLL 2 IoCs

pid	Process
4892	25d2371e6c78701a487bb6a59cca23e3.exe
4892	25d2371e6c78701a487bb6a59cca23e3.exe

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 2FA software files, possible credential harvesting 2 TTPs
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 1 IoCs

description	pid	Process	procid_target
PID 1444 set thread context of 4892	1444	25d2371e6c78701a487bb6a59cca23e3.exe	84

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	25d2371e6c78701a487bb6a59cca23e3.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	25d2371e6c78701a487bb6a59cca23e3.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
404	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3388	taskkill.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4892	25d2371e6c78701a487bb6a59cca23e3.exe
4892	25d2371e6c78701a487bb6a59cca23e3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3388	taskkill.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1444 wrote to memory of 4892	1444	25d2371e6c78701a487bb6a59cca23e3.exe	84
PID 1444 wrote to memory of 4892	1444	25d2371e6c78701a487bb6a59cca23e3.exe	84
PID 1444 wrote to memory of 4892	1444	25d2371e6c78701a487bb6a59cca23e3.exe	84
PID 1444 wrote to memory of 4892	1444	25d2371e6c78701a487bb6a59cca23e3.exe	84
PID 1444 wrote to memory of 4892	1444	25d2371e6c78701a487bb6a59cca23e3.exe	84
PID 1444 wrote to memory of 4892	1444	25d2371e6c78701a487bb6a59cca23e3.exe	84
PID 1444 wrote to memory of 4892	1444	25d2371e6c78701a487bb6a59cca23e3.exe	84
PID 1444 wrote to memory of 4892	1444	25d2371e6c78701a487bb6a59cca23e3.exe	84
PID 1444 wrote to memory of 4892	1444	25d2371e6c78701a487bb6a59cca23e3.exe	84
PID 4892 wrote to memory of 4708	4892	25d2371e6c78701a487bb6a59cca23e3.exe	87
PID 4892 wrote to memory of 4708	4892	25d2371e6c78701a487bb6a59cca23e3.exe	87
PID 4892 wrote to memory of 4708	4892	25d2371e6c78701a487bb6a59cca23e3.exe	87
PID 4708 wrote to memory of 3388	4708	cmd.exe	89
PID 4708 wrote to memory of 3388	4708	cmd.exe	89
PID 4708 wrote to memory of 3388	4708	cmd.exe	89
PID 4708 wrote to memory of 404	4708	cmd.exe	90
PID 4708 wrote to memory of 404	4708	cmd.exe	90
PID 4708 wrote to memory of 404	4708	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\25d2371e6c78701a487bb6a59cca23e3.exe
"C:\Users\Admin\AppData\Local\Temp\25d2371e6c78701a487bb6a59cca23e3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1444
- C:\Users\Admin\AppData\Local\Temp\25d2371e6c78701a487bb6a59cca23e3.exe
  "C:\Users\Admin\AppData\Local\Temp\25d2371e6c78701a487bb6a59cca23e3.exe"
  2⤵
  - Checks computer location settings
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4892
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c taskkill /im 25d2371e6c78701a487bb6a59cca23e3.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\25d2371e6c78701a487bb6a59cca23e3.exe" & del C:\PrograData\*.dll & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4708
  - - C:\Windows\SysWOW64\taskkill.exe
      taskkill /im 25d2371e6c78701a487bb6a59cca23e3.exe /f
      4⤵
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:3388
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 6
      4⤵
      Delays execution with timeout.exe
      PID:404

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

mozglue.dll

Path C:\ProgramData\mozglue.dll
Size 133KB
SHA256 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
MD5 8f73c08a9660691143661bf7332c3c27
SHA1 37fa65dd737c50fda710fdbde89e51374d0c204a
SHA512 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
SSDEEP 3072:7Gyzk/x2Wp53pUzPoNpj/kVghp1qt/dXDyp4D2JJJvPhrSeTuk:6yQ2Wp53iO/kVghp12/dXDyyD2JJJvPR
MD5 SHA1 SHA512 SSDEEP

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nss3.dll

Path C:\ProgramData\nss3.dll
Size 1.2MB
SHA256 e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
MD5 bfac4e3c5908856ba17d41edcd455a51
SHA1 8eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA512 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
SSDEEP 24576:Sb5zzlswYNYLVJAwfpeYQ1Dw/fEE8DhSJVIVfRyAkgO6S/V/jbHpls4MSRSMxkoo:4zW5ygDwnEZIYkjgWjblMSRSMqH
MD5 SHA1 SHA512 SSDEEP

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memory/1444-133-0x00000000005B0000-0x00000000005F9000-memory.dmp

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memory/1444-132-0x0000000000817000-0x0000000000842000-memory.dmp

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memory/1444-138-0x0000000000817000-0x0000000000842000-memory.dmp

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memory/4892-136-0x0000000000400000-0x000000000045D000-memory.dmp

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memory/4892-140-0x0000000060900000-0x0000000060992000-memory.dmp

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memory/4892-139-0x0000000000400000-0x000000000045D000-memory.dmp

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memory/4892-161-0x0000000000400000-0x000000000045D000-memory.dmp

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memory/4892-137-0x0000000000400000-0x000000000045D000-memory.dmp

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memory/4892-163-0x0000000000400000-0x000000000045D000-memory.dmp

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memory/4892-135-0x0000000000400000-0x000000000045D000-memory.dmp

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