21773cea42a57dff11a05f01ea94f48fc457871b110a410e4ccb416a4e346229

General

Target

ISFFORM HBLDRAFTTHBL53164US7272Coscoline.exe
Size

632KB
MD5

051bd135f8be9f0dd2ef45a9918441f8
SHA1

d60f44452664f2f82cdd5c023795589611977446
SHA256

21773cea42a57dff11a05f01ea94f48fc457871b110a410e4ccb416a4e346229
SHA512

bf029bde10505c6061a2a183e3d460a9c68e8564b71c41d89b5a0b8a2bbd5f9f8d8b9f20150623b9611af5f56256841eb924f04d473e4d8d8cea7609fb5eb5a0
SSDEEP

12288:L2KmM4kx4NDiGYaasscxBh9GvLj8y3u8DehE3S/0kBrs4CGLx4:L2KU5tauxSLj8y3RKhGbkBN9Lm

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
2264	powershell.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\alliterates.ini	ISFFORM HBLDRAFTTHBL53164US7272Coscoline.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\skurestribe.ini	ISFFORM HBLDRAFTTHBL53164US7272Coscoline.exe
File opened for modification	C:\Program Files (x86)\Voksvrks197.ini	ISFFORM HBLDRAFTTHBL53164US7272Coscoline.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
2616	2264	WerFault.exe	84

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2264	powershell.exe
2264	powershell.exe
2264	powershell.exe
2264	powershell.exe
2264	powershell.exe
2264	powershell.exe
2264	powershell.exe
2264	powershell.exe
2264	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2264	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4584 wrote to memory of 2264	4584	ISFFORM HBLDRAFTTHBL53164US7272Coscoline.exe	84
PID 4584 wrote to memory of 2264	4584	ISFFORM HBLDRAFTTHBL53164US7272Coscoline.exe	84
PID 4584 wrote to memory of 2264	4584	ISFFORM HBLDRAFTTHBL53164US7272Coscoline.exe	84
PID 2264 wrote to memory of 1640	2264	powershell.exe	89
PID 2264 wrote to memory of 1640	2264	powershell.exe	89
PID 2264 wrote to memory of 1640	2264	powershell.exe	89

C:\Users\Admin\AppData\Local\Temp\ISFFORM HBLDRAFTTHBL53164US7272Coscoline.exe
"C:\Users\Admin\AppData\Local\Temp\ISFFORM HBLDRAFTTHBL53164US7272Coscoline.exe"
1⤵
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4584
- 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:2264
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" "/c set /A 1^^0"
    3⤵
    PID:1640
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 2536
    3⤵
    - Program crash
    PID:2616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2264 -ip 2264
1⤵
PID:1688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ojj15i1j.taj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\semiconventionally\mast\halvas\Pseudoaconitine210\Lavishment\Bifilar.For

Filesize
49KB

MD5
dbd3fd0062c83fc1a96c9eb8f084ea63

SHA1
40f1ea618b83948dfd62c5c9169c2699dea936c8

SHA256
22964b08e64845d9c0c0f415b92e999db4a9415c241603ee21777e3c7237b331

SHA512
a9a138101e377f85028058fb33b8daa6b8e0c2f745237a2bcfab1ab4eed4e6569cfabe486e223c4c6e22395bcad800fb2539065f8d867a53dbdb3c6b71dccf0f

Download Submit
memory/2264-63-0x0000000073B30000-0x00000000742E0000-memory.dmp

Filesize
7.7MB

Download
memory/2264-78-0x0000000005E70000-0x0000000005EBC000-memory.dmp

Filesize
304KB

Download
memory/2264-59-0x0000000073B3E000-0x0000000073B3F000-memory.dmp

Filesize
4KB

Download
memory/2264-64-0x0000000004E10000-0x0000000004E32000-memory.dmp

Filesize
136KB

Download
memory/2264-65-0x0000000005700000-0x0000000005766000-memory.dmp

Filesize
408KB

Download
memory/2264-66-0x0000000005770000-0x00000000057D6000-memory.dmp

Filesize
408KB

Download
memory/2264-61-0x0000000073B30000-0x00000000742E0000-memory.dmp

Filesize
7.7MB

Download
memory/2264-76-0x00000000057E0000-0x0000000005B34000-memory.dmp

Filesize
3.3MB

Download
memory/2264-77-0x0000000005DC0000-0x0000000005DDE000-memory.dmp

Filesize
120KB

Download
memory/2264-62-0x0000000004EA0000-0x00000000054C8000-memory.dmp

Filesize
6.2MB

Download
memory/2264-79-0x0000000006DC0000-0x0000000006E56000-memory.dmp

Filesize
600KB

Download
memory/2264-80-0x00000000062F0000-0x000000000630A000-memory.dmp

Filesize
104KB

Download
memory/2264-81-0x0000000006310000-0x0000000006332000-memory.dmp

Filesize
136KB

Download
memory/2264-82-0x0000000007410000-0x00000000079B4000-memory.dmp

Filesize
5.6MB

Download
memory/2264-60-0x00000000047F0000-0x0000000004826000-memory.dmp

Filesize
216KB

Download
memory/2264-84-0x0000000008040000-0x00000000086BA000-memory.dmp

Filesize
6.5MB

Download
memory/2264-86-0x0000000073B30000-0x00000000742E0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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