9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb

Analysis

max time kernel
151s
max time network
191s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
01/12/2022, 00:40

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General

Target

9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe
Size

322KB
MD5

d5d3abf7f6bf92c36a27657b957f1eda
SHA1

00bdb05ae85f15573168ae2b5c0ea17fc5f65ef3
SHA256

9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb
SHA512

aa8ee7077f9a6f0950d684ce2f6e6fe2f42987c3f065ecb66ebceb81dbc26127011476b958c8a7602302fc874452f25703752c4322112e9a8de1973e59a0b6bc
SSDEEP

6144:f5ADU35zeQ0R7+28O86sgg/QNpZmoZkdkCVLeC2wuJv8200XRRvD+S6GbEJXuh4X:xEa5zeD7+q/mIkdUvV0qRRL76zj

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
540	vyarvo.exe
1176	vyarvo.exe

Deletes itself 1 IoCs

pid	Process
1644	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
940	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe
940	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\{7B2FDFC8-3774-AD4D-C411-AE4FF0968D52} = "C:\\Users\\Admin\\AppData\\Roaming\\Kyfeav\\vyarvo.exe"	vyarvo.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\Currentversion\Run	vyarvo.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1888 set thread context of 940	1888	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	28
PID 540 set thread context of 1176	540	vyarvo.exe	30

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe
1176	vyarvo.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 940	1888	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	28
PID 1888 wrote to memory of 940	1888	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	28
PID 1888 wrote to memory of 940	1888	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	28
PID 1888 wrote to memory of 940	1888	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	28
PID 1888 wrote to memory of 940	1888	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	28
PID 1888 wrote to memory of 940	1888	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	28
PID 1888 wrote to memory of 940	1888	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	28
PID 1888 wrote to memory of 940	1888	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	28
PID 1888 wrote to memory of 940	1888	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	28
PID 940 wrote to memory of 540	940	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	29
PID 940 wrote to memory of 540	940	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	29
PID 940 wrote to memory of 540	940	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	29
PID 940 wrote to memory of 540	940	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	29
PID 540 wrote to memory of 1176	540	vyarvo.exe	30
PID 540 wrote to memory of 1176	540	vyarvo.exe	30
PID 540 wrote to memory of 1176	540	vyarvo.exe	30
PID 540 wrote to memory of 1176	540	vyarvo.exe	30
PID 540 wrote to memory of 1176	540	vyarvo.exe	30
PID 540 wrote to memory of 1176	540	vyarvo.exe	30
PID 540 wrote to memory of 1176	540	vyarvo.exe	30
PID 540 wrote to memory of 1176	540	vyarvo.exe	30
PID 540 wrote to memory of 1176	540	vyarvo.exe	30
PID 1176 wrote to memory of 1128	1176	vyarvo.exe	18
PID 1176 wrote to memory of 1128	1176	vyarvo.exe	18
PID 1176 wrote to memory of 1128	1176	vyarvo.exe	18
PID 1176 wrote to memory of 1128	1176	vyarvo.exe	18
PID 1176 wrote to memory of 1128	1176	vyarvo.exe	18
PID 1176 wrote to memory of 1224	1176	vyarvo.exe	17
PID 1176 wrote to memory of 1224	1176	vyarvo.exe	17
PID 1176 wrote to memory of 1224	1176	vyarvo.exe	17
PID 1176 wrote to memory of 1224	1176	vyarvo.exe	17
PID 1176 wrote to memory of 1224	1176	vyarvo.exe	17
PID 1176 wrote to memory of 1276	1176	vyarvo.exe	9
PID 1176 wrote to memory of 1276	1176	vyarvo.exe	9
PID 940 wrote to memory of 1644	940	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	31
PID 940 wrote to memory of 1644	940	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	31
PID 940 wrote to memory of 1644	940	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	31
PID 940 wrote to memory of 1644	940	9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe	31
PID 1176 wrote to memory of 1276	1176	vyarvo.exe	9
PID 1176 wrote to memory of 1276	1176	vyarvo.exe	9
PID 1176 wrote to memory of 1276	1176	vyarvo.exe	9
PID 1176 wrote to memory of 940	1176	vyarvo.exe	28
PID 1176 wrote to memory of 1644	1176	vyarvo.exe	31
PID 1176 wrote to memory of 1644	1176	vyarvo.exe	31
PID 1176 wrote to memory of 1644	1176	vyarvo.exe	31
PID 1176 wrote to memory of 1644	1176	vyarvo.exe	31
PID 1176 wrote to memory of 1644	1176	vyarvo.exe	31
PID 1176 wrote to memory of 1660	1176	vyarvo.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1276
- C:\Users\Admin\AppData\Local\Temp\9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe
  "C:\Users\Admin\AppData\Local\Temp\9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1888
- - C:\Users\Admin\AppData\Local\Temp\9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe
    "C:\Users\Admin\AppData\Local\Temp\9a1e0ec6ca0fbf49384efdb8be759378841602e554ba0528df1de9f8693081eb.exe"
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:940
  - - C:\Users\Admin\AppData\Roaming\Kyfeav\vyarvo.exe
      "C:\Users\Admin\AppData\Roaming\Kyfeav\vyarvo.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:540
    - - C:\Users\Admin\AppData\Roaming\Kyfeav\vyarvo.exe
        
        "C:\Users\Admin\AppData\Roaming\Kyfeav\vyarvo.exe"
        5⤵
        Executes dropped EXE
        Adds Run key to start application
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:1176
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp63930846.bat"
      4⤵
      Deletes itself
      PID:1644

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1224

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1128

C:\Windows\system32\conhost.exe
\??\C:\Windows\system32\conhost.exe "-1822157377-614470190119780098-973487695469261956-12314532321411569134876411351"
1⤵
PID:1660

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

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp63930846.bat

Filesize
307B

MD5
b7ff024da133b6c093c4c57e3f7f688e

SHA1
4ad1af2c7a7067da5e8db48f98940669de69c606

SHA256
45bcf59d7ea394d837b861c71c0f6f8fbb8b1377bda07cbb3120a641ffbd8f81

SHA512
fb4339a8e73bbc5f563bddb48440410b607c712ddbfb9bbd203a324f03d148171c880bb9d4b4ba838d115c0f921372f1537d51ed8bc9194fbe4ddb0e9ca254b9

Download Submit
C:\Users\Admin\AppData\Roaming\Kyfeav\vyarvo.exe

Filesize
322KB

MD5
24aa871a5a794473b774a71484905a7e

SHA1
41f7e8b8633cb9e95ace025a3f6abdc5c7b34437

SHA256
f3f38947d122a100be84c03585cf1783e23227beaeed0cc3f95b094546ae09c4

SHA512
042fd929f731aca1e3a3b7fe95f717a4e369c8682d3817842eb54177425d565e7a02eb986bf5de45dfb9c47930c0a1038fd2b929ce4c642a5d39155688c3e34f

Download Submit
C:\Users\Admin\AppData\Roaming\Kyfeav\vyarvo.exe

Filesize
322KB

MD5
24aa871a5a794473b774a71484905a7e

SHA1
41f7e8b8633cb9e95ace025a3f6abdc5c7b34437

SHA256
f3f38947d122a100be84c03585cf1783e23227beaeed0cc3f95b094546ae09c4

SHA512
042fd929f731aca1e3a3b7fe95f717a4e369c8682d3817842eb54177425d565e7a02eb986bf5de45dfb9c47930c0a1038fd2b929ce4c642a5d39155688c3e34f

Download Submit
C:\Users\Admin\AppData\Roaming\Kyfeav\vyarvo.exe

Filesize
322KB

MD5
24aa871a5a794473b774a71484905a7e

SHA1
41f7e8b8633cb9e95ace025a3f6abdc5c7b34437

SHA256
f3f38947d122a100be84c03585cf1783e23227beaeed0cc3f95b094546ae09c4

SHA512
042fd929f731aca1e3a3b7fe95f717a4e369c8682d3817842eb54177425d565e7a02eb986bf5de45dfb9c47930c0a1038fd2b929ce4c642a5d39155688c3e34f

Download Submit
\Users\Admin\AppData\Roaming\Kyfeav\vyarvo.exe

Filesize
322KB

MD5
24aa871a5a794473b774a71484905a7e

SHA1
41f7e8b8633cb9e95ace025a3f6abdc5c7b34437

SHA256
f3f38947d122a100be84c03585cf1783e23227beaeed0cc3f95b094546ae09c4

SHA512
042fd929f731aca1e3a3b7fe95f717a4e369c8682d3817842eb54177425d565e7a02eb986bf5de45dfb9c47930c0a1038fd2b929ce4c642a5d39155688c3e34f

Download Submit
\Users\Admin\AppData\Roaming\Kyfeav\vyarvo.exe

Filesize
322KB

MD5
24aa871a5a794473b774a71484905a7e

SHA1
41f7e8b8633cb9e95ace025a3f6abdc5c7b34437

SHA256
f3f38947d122a100be84c03585cf1783e23227beaeed0cc3f95b094546ae09c4

SHA512
042fd929f731aca1e3a3b7fe95f717a4e369c8682d3817842eb54177425d565e7a02eb986bf5de45dfb9c47930c0a1038fd2b929ce4c642a5d39155688c3e34f

Download Submit
memory/540-84-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/540-72-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/940-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/940-65-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

Download
memory/940-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/940-70-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/940-71-0x0000000000590000-0x00000000005E7000-memory.dmp

Filesize
348KB

Download
memory/940-104-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/940-58-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/940-56-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/940-55-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1128-91-0x0000000001C80000-0x0000000001CCC000-memory.dmp

Filesize
304KB

Download
memory/1128-90-0x0000000001C80000-0x0000000001CCC000-memory.dmp

Filesize
304KB

Download
memory/1128-89-0x0000000001C80000-0x0000000001CCC000-memory.dmp

Filesize
304KB

Download
memory/1128-88-0x0000000001C80000-0x0000000001CCC000-memory.dmp

Filesize
304KB

Download
memory/1176-115-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1224-95-0x0000000001B50000-0x0000000001B9C000-memory.dmp

Filesize
304KB

Download
memory/1224-94-0x0000000001B50000-0x0000000001B9C000-memory.dmp

Filesize
304KB

Download
memory/1224-96-0x0000000001B50000-0x0000000001B9C000-memory.dmp

Filesize
304KB

Download
memory/1224-97-0x0000000001B50000-0x0000000001B9C000-memory.dmp

Filesize
304KB

Download
memory/1276-101-0x00000000029B0000-0x00000000029FC000-memory.dmp

Filesize
304KB

Download
memory/1276-103-0x00000000029B0000-0x00000000029FC000-memory.dmp

Filesize
304KB

Download
memory/1276-105-0x00000000029B0000-0x00000000029FC000-memory.dmp

Filesize
304KB

Download
memory/1276-100-0x00000000029B0000-0x00000000029FC000-memory.dmp

Filesize
304KB

Download
memory/1644-111-0x00000000000F0000-0x000000000013C000-memory.dmp

Filesize
304KB

Download
memory/1644-112-0x00000000000F0000-0x000000000013C000-memory.dmp

Filesize
304KB

Download
memory/1644-110-0x00000000000F0000-0x000000000013C000-memory.dmp

Filesize
304KB

Download
memory/1644-109-0x00000000000F0000-0x000000000013C000-memory.dmp

Filesize
304KB

Download
memory/1888-54-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/1888-63-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download