21773cea42a57dff11a05f01ea94f48fc457871b110a410e4ccb416a4e346229

Analysis

max time kernel
148s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
09/05/2024, 15:15

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General

Target
z43ISFFORMHBLDRAFTTHBL53164US7272Coscoline.exe
Size 632KB
Sample240509-smwcdsbc92
SHA256 21773cea42a57dff11a05f01ea94f48fc457871b110a410e4ccb416a4e346229
MD5 051bd135f8be9f0dd2ef45a9918441f8
SHA1 d60f44452664f2f82cdd5c023795589611977446
SHA512 bf029bde10505c6061a2a183e3d460a9c68e8564b71c41d89b5a0b8a2bbd5f9f8d8b9f20150623b9611af5f56256841eb924f04d473e4d8d8cea7609fb5eb5a0
SSDEEP 12288:L2KmM4kx4NDiGYaasscxBh9GvLj8y3u8DehE3S/0kBrs4CGLx4:L2KU5tauxSLj8y3RKhGbkBN9Lm
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4208	powershell.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\alliterates.ini	z43ISFFORMHBLDRAFTTHBL53164US7272Coscoline.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\skurestribe.ini	z43ISFFORMHBLDRAFTTHBL53164US7272Coscoline.exe
File opened for modification	C:\Program Files (x86)\Voksvrks197.ini	z43ISFFORMHBLDRAFTTHBL53164US7272Coscoline.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4136	4208	WerFault.exe	83

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4208	powershell.exe
4208	powershell.exe
4208	powershell.exe
4208	powershell.exe
4208	powershell.exe
4208	powershell.exe
4208	powershell.exe
4208	powershell.exe
4208	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4208	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4444 wrote to memory of 4208	4444	z43ISFFORMHBLDRAFTTHBL53164US7272Coscoline.exe	83
PID 4444 wrote to memory of 4208	4444	z43ISFFORMHBLDRAFTTHBL53164US7272Coscoline.exe	83
PID 4444 wrote to memory of 4208	4444	z43ISFFORMHBLDRAFTTHBL53164US7272Coscoline.exe	83
PID 4208 wrote to memory of 4588	4208	powershell.exe	89
PID 4208 wrote to memory of 4588	4208	powershell.exe	89
PID 4208 wrote to memory of 4588	4208	powershell.exe	89

C:\Users\Admin\AppData\Local\Temp\z43ISFFORMHBLDRAFTTHBL53164US7272Coscoline.exe
"C:\Users\Admin\AppData\Local\Temp\z43ISFFORMHBLDRAFTTHBL53164US7272Coscoline.exe"
1⤵
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4444
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -windowstyle hidden "$Forhrsleder=Get-Content 'C:\Users\Admin\AppData\Local\Temp\semiconventionally\mast\halvas\Pseudoaconitine210\Lavishment\Bifilar.For';$Nordamerikaner=$Forhrsleder.SubString(3576,3);.$Nordamerikaner($Forhrsleder)"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4208
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" "/c set /A 1^^0"
    3⤵
    PID:4588
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4208 -s 2608
    3⤵
    - Program crash
    PID:4136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4208 -ip 4208
1⤵
PID:380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

__PSScriptPolicyTest_clmqfsar.d1e.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_clmqfsar.d1e.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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Bifilar.For

Path C:\Users\Admin\AppData\Local\Temp\semiconventionally\mast\halvas\Pseudoaconitine210\Lavishment\Bifilar.For
Size 49KB
SHA256 22964b08e64845d9c0c0f415b92e999db4a9415c241603ee21777e3c7237b331
MD5 dbd3fd0062c83fc1a96c9eb8f084ea63
SHA1 40f1ea618b83948dfd62c5c9169c2699dea936c8
SHA512 a9a138101e377f85028058fb33b8daa6b8e0c2f745237a2bcfab1ab4eed4e6569cfabe486e223c4c6e22395bcad800fb2539065f8d867a53dbdb3c6b71dccf0f
SSDEEP 1536:UlDzmZglFCtPrFyycStiXJYV2nFYGox1jKXj12E:UlDcuFm5yN/JYV0F8jev
MD5 SHA1 SHA512 SSDEEP

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memory/4208-63-0x0000000073A90000-0x0000000074240000-memory.dmp

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memory/4208-78-0x0000000005E10000-0x0000000005E5C000-memory.dmp

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memory/4208-59-0x0000000073A9E000-0x0000000073A9F000-memory.dmp

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memory/4208-64-0x0000000005560000-0x0000000005582000-memory.dmp

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memory/4208-66-0x00000000057A0000-0x0000000005806000-memory.dmp

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memory/4208-65-0x0000000005680000-0x00000000056E6000-memory.dmp

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memory/4208-61-0x0000000004F00000-0x0000000005528000-memory.dmp

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memory/4208-76-0x0000000005A10000-0x0000000005D64000-memory.dmp

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memory/4208-77-0x0000000005DC0000-0x0000000005DDE000-memory.dmp

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memory/4208-62-0x0000000073A90000-0x0000000074240000-memory.dmp

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memory/4208-79-0x0000000006D80000-0x0000000006E16000-memory.dmp

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memory/4208-80-0x0000000006300000-0x000000000631A000-memory.dmp

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memory/4208-81-0x0000000006350000-0x0000000006372000-memory.dmp

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memory/4208-82-0x00000000073D0000-0x0000000007974000-memory.dmp

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memory/4208-60-0x0000000004820000-0x0000000004856000-memory.dmp

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memory/4208-84-0x0000000008000000-0x000000000867A000-memory.dmp

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memory/4208-86-0x0000000073A90000-0x0000000074240000-memory.dmp

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