a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c

General

Target

a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe
Size

78KB
MD5

7ee472bfd0e44c494ea26d3f028a578e
SHA1

85c00e765a09c3f0fcbbb143d808fc3234b7ad59
SHA256

a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c
SHA512

397db579c4a9013b76af8ff8f2cb98f382cdafcdf2f9f508d9127bd7d889072db435ad9feaee1ee7ad8bd6fea05b1c3a8e7d02d6a99b8945adb5d4d820aff348
SSDEEP

1536:DCHF3M7t/vZv0kH9gDDtWzYCnJPeoYrGQtRj9/q1gQy:DCHF8h/l0Y9MDYrm7Rj9/ay

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2852	tmpF70C.tmp.exe

Loads dropped DLL 2 IoCs

pid	Process
2328	a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe
2328	a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\peverify = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft.CSharp.exe\""	tmpF70C.tmp.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmpF70C.tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2328	a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe
Token: SeDebugPrivilege	2852	tmpF70C.tmp.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2140	2328	a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe	29
PID 2328 wrote to memory of 2140	2328	a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe	29
PID 2328 wrote to memory of 2140	2328	a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe	29
PID 2328 wrote to memory of 2140	2328	a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe	29
PID 2140 wrote to memory of 2964	2140	vbc.exe	31
PID 2140 wrote to memory of 2964	2140	vbc.exe	31
PID 2140 wrote to memory of 2964	2140	vbc.exe	31
PID 2140 wrote to memory of 2964	2140	vbc.exe	31
PID 2328 wrote to memory of 2852	2328	a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe	32
PID 2328 wrote to memory of 2852	2328	a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe	32
PID 2328 wrote to memory of 2852	2328	a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe	32
PID 2328 wrote to memory of 2852	2328	a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe	32

C:\Users\Admin\AppData\Local\Temp\a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe
"C:\Users\Admin\AppData\Local\Temp\a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /noconfig @"C:\Users\Admin\AppData\Local\Temp\ynfs-lkf.cmdline"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2140
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
    C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESFA57.tmp" "C:\Users\Admin\AppData\Local\Temp\vbcFA56.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2964
- C:\Users\Admin\AppData\Local\Temp\tmpF70C.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmpF70C.tmp.exe" C:\Users\Admin\AppData\Local\Temp\a6916638eeed4aa8f0d538a03557e6cb2301ac04379ecdf0eebfdbb916a2935c.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RESFA57.tmp

Filesize
1KB

MD5
db15b0e8555818e4d3b352c0c74bcdeb

SHA1
5edb0f4b651094c2e287013ebd788f8c100196ac

SHA256
af92838b5efd279f10151c3baa9e299a579e0c41d59d73682172cf0e190411ac

SHA512
38be18ea1d1f41993a0966b39eec9f882d8a61649e8dfb2916404becbfe34b9b2372539cdaf8ada703fae4c3de7ba494e52ede3fd32e2e6131071ae5c871baff

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF70C.tmp.exe

Filesize
78KB

MD5
7ffe1197202e4d9a99d45557b8d86425

SHA1
18cc6458f998f0b9fc6c0b7f64b516f7504b099d

SHA256
44a73ca5a16c0267cf6a4e954c0c38c894d8bdb57d49d40ab2d30980dc82241c

SHA512
0b132651aad76e64a764ac8888e80c97abec11e1aa1978dfd9f6ef2fb37b60a619de6648319070524176adae36946980ecac3a0131138b4d416881a561b99a53

Download Submit
C:\Users\Admin\AppData\Local\Temp\vbcFA56.tmp

Filesize
660B

MD5
9e5d247b0221d30497e1a6928672cf95

SHA1
a034696c593a7db4f16cfc2f6ab08c6154e57339

SHA256
49fd80ef501c3f6acacd41e983e4a96fdb522f864235036c56208f20eaf5b349

SHA512
c2771a0febae3cb49309e698d9824907e61f2fa87f3ce7d9a602d377b9c479d23ad31e750f2c4faf183e452980f10ef79cacf2394db36b254b97c4d893814898

Download Submit
C:\Users\Admin\AppData\Local\Temp\ynfs-lkf.0.vb

Filesize
15KB

MD5
44b2a0ab7786ffcb3e04fd055d0ab174

SHA1
e89767ac96914c2ce069fd3a862f8556041bf744

SHA256
17f02c2597df09aa77d7b626e0e4d5073c8cdcff5eb0a88cb064e028d4f170d9

SHA512
3bce9444596296240eb7f292e55342c79e5cd4859553a752e6436c8966fce93956c6de44817d6abaf901f03a805200ae4f7936b212ac13734ca7e6a7dcc0bd53

Download Submit
C:\Users\Admin\AppData\Local\Temp\ynfs-lkf.cmdline

Filesize
266B

MD5
25b2a0944c4660e0420c75e685a194f8

SHA1
747632f9e8087f123975e54cc257cdc749b5e28e

SHA256
3500fcea524948ccc63f224e7b69d2a79ff13282551c75e862eccbb0798fa3d0

SHA512
20a9884ed2ebdaa40d6cfd4f813abd0c477eb12a70c52034969ab06597a4024af71eec1fa6fcf1e714a5eb08e998762be1df1c6cbec8297b5c8c15c1c3b59876

Download Submit
C:\Users\Admin\AppData\Local\Temp\zCom.resources

Filesize
62KB

MD5
8b25b4d931908b4c77ce6c3d5b9a2910

SHA1
88b65fd9733484c8f8147dad9d0896918c7e37c7

SHA256
79c261ab6b394ee23ab0fd0af48bcd96f914c6bb88b36b6815b6bbf787ecd56e

SHA512
6d954066cec5eca118601f2f848f5c9deebe3761ac285c6d45041df22e4bc4e9e2fd98c1aa4fbb6b9c735151bf8d5fffa5acddf7060a4cf3cb7e09271a4a926d

Download Submit
memory/2140-8-0x00000000749F0000-0x0000000074F9B000-memory.dmp

Filesize
5.7MB

Download
memory/2140-18-0x00000000749F0000-0x0000000074F9B000-memory.dmp

Filesize
5.7MB

Download
memory/2328-0-0x00000000749F1000-0x00000000749F2000-memory.dmp

Filesize
4KB

Download
memory/2328-1-0x00000000749F0000-0x0000000074F9B000-memory.dmp

Filesize
5.7MB

Download
memory/2328-2-0x00000000749F0000-0x0000000074F9B000-memory.dmp

Filesize
5.7MB

Download
memory/2328-24-0x00000000749F0000-0x0000000074F9B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads