973926297abfda903b9b6ef303f7b0b6c7eddb184f9f26563a5adea43915ce8d

General

Target

e-transfer.exe
Size

300.0MB
MD5

affebb601f181b9c290753caae06050a
SHA1

64942ee5d84b1a2262d02a1dd0ae1aa6e8b66486
SHA256

e2ce88575e964545d834e0bae841ec554b02fa4a290e645e19cb7556123bb49e
SHA512

3870beafddb9972863a2b0d74eeded9bd21eb3b8c13563808754927ce3a29579adad56e7eb3bc37b4777cb16caea0d9d5d233b01432aa42fe0c5ecafc3c025b2

Score

8^/10

upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/1512-122-0x0000000000910000-0x0000000000CF4000-memory.dmp	upx

Suspicious use of SetThreadContext 1 IoCs

Processes:

e-transfer.exe

description pid process target process

PID 2664 set thread context of 1512 2664 e-transfer.exe RegAsm.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1348 1512 WerFault.exe RegAsm.exe
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1292 schtasks.exe

description	pid	process	target process
PID 2664 set thread context of 1512	2664	e-transfer.exe	RegAsm.exe

pid	pid_target	process	target process
1348	1512	WerFault.exe	RegAsm.exe

pid	process
1292	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

WerFault.exe

pid	process
1348	WerFault.exe
1348	WerFault.exe
1348	WerFault.exe
1348	WerFault.exe
1348	WerFault.exe
1348	WerFault.exe
1348	WerFault.exe
1348	WerFault.exe
1348	WerFault.exe
1348	WerFault.exe
1348	WerFault.exe
1348	WerFault.exe
1348	WerFault.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

e-transfer.exeWerFault.exe

description	pid	process
Token: SeDebugPrivilege	2664	e-transfer.exe
Token: SeRestorePrivilege	1348	WerFault.exe
Token: SeBackupPrivilege	1348	WerFault.exe
Token: SeDebugPrivilege	1348	WerFault.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

e-transfer.execmd.exe

description	pid	process	target process
PID 2664 wrote to memory of 1512	2664	e-transfer.exe	RegAsm.exe
PID 2664 wrote to memory of 1512	2664	e-transfer.exe	RegAsm.exe
PID 2664 wrote to memory of 1512	2664	e-transfer.exe	RegAsm.exe
PID 2664 wrote to memory of 1512	2664	e-transfer.exe	RegAsm.exe
PID 2664 wrote to memory of 1512	2664	e-transfer.exe	RegAsm.exe
PID 2664 wrote to memory of 1512	2664	e-transfer.exe	RegAsm.exe
PID 2664 wrote to memory of 1512	2664	e-transfer.exe	RegAsm.exe
PID 2664 wrote to memory of 3796	2664	e-transfer.exe	cmd.exe
PID 2664 wrote to memory of 3796	2664	e-transfer.exe	cmd.exe
PID 2664 wrote to memory of 3796	2664	e-transfer.exe	cmd.exe
PID 2664 wrote to memory of 1216	2664	e-transfer.exe	cmd.exe
PID 2664 wrote to memory of 1216	2664	e-transfer.exe	cmd.exe
PID 2664 wrote to memory of 1216	2664	e-transfer.exe	cmd.exe
PID 2664 wrote to memory of 896	2664	e-transfer.exe	cmd.exe
PID 2664 wrote to memory of 896	2664	e-transfer.exe	cmd.exe
PID 2664 wrote to memory of 896	2664	e-transfer.exe	cmd.exe
PID 1216 wrote to memory of 1292	1216	cmd.exe	schtasks.exe
PID 1216 wrote to memory of 1292	1216	cmd.exe	schtasks.exe
PID 1216 wrote to memory of 1292	1216	cmd.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\e-transfer.exe
"C:\Users\Admin\AppData\Local\Temp\e-transfer.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2664

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
PID:1512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1512 -s 568
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1348

C:\Windows\SysWOW64\cmd.exe
"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\YAKBITT"
2⤵
PID:3796

C:\Windows\SysWOW64\cmd.exe
"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nanias" /tr "'C:\Users\Admin\AppData\Roaming\YAKBITT\YAKBITT.exe'" /f
2⤵
- Suspicious use of WriteProcessMemory
PID:1216

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn "Nanias" /tr "'C:\Users\Admin\AppData\Roaming\YAKBITT\YAKBITT.exe'" /f
3⤵
- Creates scheduled task(s)
PID:1292

C:\Windows\SysWOW64\cmd.exe
"cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\e-transfer.exe" "C:\Users\Admin\AppData\Roaming\YAKBITT\YAKBITT.exe"
2⤵
PID:896

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1512-122-0x0000000000910000-0x0000000000CF4000-memory.dmp

Filesize
3.9MB

Download
memory/2664-115-0x0000000000E50000-0x0000000001060000-memory.dmp

Filesize
2.1MB

Download
memory/2664-116-0x00000000052F0000-0x0000000005356000-memory.dmp

Filesize
408KB

Download
memory/2664-117-0x00000000058A0000-0x0000000005D9E000-memory.dmp

Filesize
5.0MB

Download
memory/2664-118-0x0000000005440000-0x00000000054D2000-memory.dmp

Filesize
584KB

Download
memory/2664-119-0x00000000052E0000-0x00000000052E1000-memory.dmp

Filesize
4KB

Download
memory/2664-120-0x00000000053E0000-0x00000000053EA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads